Related
My HD+ is only showing 768.8 MB of RAM,not 1gb. Is that right?
1GB of ram, 256MB of it is allocated as graphics memory.
pbassjunk said:
1GB of ram, 256MB of it is allocated as graphics memory.
Click to expand...
Click to collapse
Thanks
Good information, thanks. I was going to wait for the new Nexus 7 with 2 GB (IO rumor proved false). My HD+ is faster than my original Kindle Fire but not as zippy as I'd like.
Jd6J0r said:
Good information, thanks. I was going to wait for the new Nexus 7 with 2 GB (IO rumor proved false). My HD+ is faster than my original Kindle Fire but not as zippy as I'd like.
Click to expand...
Click to collapse
I thought the rumor was not reliable before the I/O because such upgrades would have caused the price of Nexus 7 to go up.
I have a Nexus 7. It is fast but the screen is just a bit smaller. I did a benchmark with HD+ and it scored the same in HTML5 test with stock room and outperformed Nexus 7 using CM10.1. 3D Gaming though it is about 20% less FPS than Nexus 7 but still playable.
No sd slot and the 7" display taken up by the fixed navigation bar is too constrained for me. The Nooks 9" display makes the navigation bar a lot less of an issue.
As far as chipset performance, the cpu proves to be faster than Tegra 3 based in MAME and N64 performance. MW3 and NOVA3 are just as smooth in spite of the 2x higher res display.
The only thing that makes no sense is some games load so slowly, there is no point in playing them IMO- Asphalt 7 is the worst and NFSMW is second. The two other games noted above though load fine and they are huge as well.
View92612 said:
Iㅏ thought the rumor was not reliable before the I/O because such upgrades would have caused the price of Nㅣexus 7 to go up.
I have a Nexus 7. It is fast but the screen is just a bit smaller. I did a benchmark with HD+ andㅌ it scored the same in HTML5 test with stock room and outperformed Nexus 7 using CM10.1. 3D Gaming though it is about 20% less FPS than Nexus 7 but still playable.
Click to expand...
Click to collapse
ㅒㅐ
jaudio said:
Thanks
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Click to collapse
Sent from my Galaxy Nexus using Tapatalk 2
hi
im looking at the nook hd+ as i love the screen, design and price
but i will be gaming a lot and was just wondering how the performance is on the most demanding game Real Racing 3
if anyone has tried this game on the nook HD+ or even just the nook hd please reply with a summary of performance
also have you had any problems with unsupported games.
thanks and have a nice day
The Nook HD+ is really not designed for 3D gaming. It has definite problems running this specific game.
Sent from my Nexus 7 using xda app-developers app
I have not tried real racing yet but
Beach buggy blitz on the other hand runs VERY smoothly.
yes
Medleyz said:
hi
im looking at the nook hd+ as i love the screen, design and price
but i will be gaming a lot and was just wondering how the performance is on the most demanding game Real Racing 3
if anyone has tried this game on the nook HD+ or even just the nook hd please reply with a summary of performance
also have you had any problems with unsupported games.
thanks and have a nice day
Click to expand...
Click to collapse
*I can also vouch for Beach Buggy, as well as Air Wings, Dead Trigger, Dungeon Hunter 4, and Contract Killer 2.
Asphalt 8, you can even adjust to high quality graphics, but I personally find the lens flare distracting.
I went through the extreme annoyance of registering here (I freaking HATE that Capcha crap. I am a human and I can't see what the heck 90 percent of them say) to tell you that yes, Real Racing 3 looks and plays fine. Not sure what the other person has experienced, but I have had my nook hd+ since July and have had the game since day 1.
Funny part is, I just stopped playing to go to bed right before I read this. Been battling a friend off and on all day.
The only game I want that I can't download on my unrooted device is INJUSTICE. I currently play about 12 games, including Asphalt 8, Heroes of Destiny, Six Guns, and others.
Hope this helps. I have been coming here sporadically for years to find answers to my tech questions, and hope that I can return the favor for someone else.
ha ha I know what you mean about the captcha...after you post a few times though it goes away.
I had not tried real racing 3 yet but thought it should do well on the Nook HD+.
It does great with all the 3D games and demos I've tried before.
I tried installing it a few days ago.
Unfortunately it runs poorly. This will primarily be due to the fact that the OMAP 4470 utilised has only a single core GPU.
Rooted HD+
Been running RR3 for about a fortnight now, no problems whatsoever, well apart from 1.6GB of download in the last two weeks, just as well these things are not on the cellular network! Great game works well on the HD+
RR3 works really well. The framerate isn't that high but absolutely no lag/freeze
I think it might help to specify if you're using stock rom, or a CM rom, maybe performance is different for each. FWIW Asphalt 8 runs fine, at highest graphic setting, using stock rom
ALL of you should just use rr3 graphics app and have better framerate and enjoy the game more while not complaining about it so much. lol -> https://play.google.com/store/apps/details?id=lt.hitex.rr3graphics&hl=en
high = smooth gameplay.
The problem with rr3 is that the graphical settings are forced and for this chip @ 1080p its just one setting too much. Use that app to lower it to where you like and its all better.
Asphalt 8 would probably melt our tablets. It is FAR more busy than Asphalt 7 and that was slow on the HD+. A8 is one of the best racers I have played though (S4 and Excite 7.7).
rushless said:
Asphalt 8 would probably melt our tablets. It is FAR more busy than Asphalt 7 and that was slow on the HD+. A8 is one of the best racers I have played though (S4 and Excite 7.7).
Click to expand...
Click to collapse
Asphalt 8 works better than asphalt 7. It isn't the smoothest but on low-very low graphics settings it is completely playable. Not nearly as bad as asphalt 7. I also spoke with one of the Gameloft people who works on the android version of the game and told him about how because this is playing at full 1080p the CPU has trouble keeping up with it and they are going to work on adding a 720p graphics option to the game.
Sent from a long time ago, in a galaxy far far away........
---------- Post added at 07:03 PM ---------- Previous post was at 06:59 PM ----------
sandsofmyst said:
ALL of you should just use rr3 graphics app and have better framerate and enjoy the game more while not complaining about it so much. lol -> https://play.google.com/store/apps/details?id=lt.hitex.rr3graphics&hl=en
high = smooth gameplay.
The problem with rr3 is that the graphical settings are forced and for this chip @ 1080p its just one setting too much. Use that app to lower it to where you like and its all better.
Click to expand...
Click to collapse
Where is the setting for resolution? I can't find it in the app. Only low, medium, high, etc.
Sent from a long time ago, in a galaxy far far away........
Hi,
I'm considering buying Nook HD or HD+. The screen size is not an important issue for me. The only thing that matters to me is the processing speed. I know HD+ is at 1.5 and HD is at 1.3, but I read somewhere that they both use the exact same chip? If so, I'm guessing that once I install a custom ROM, I can use HD at 1.5 anyway, thus removing any reason to pay more for HD+? I don't own either, so I would like to hear from you current owners. Please share your thoughts and advice.
Thank you,
GT
I have both running CyanogenMod 10.1.3 at the moment (gave the HD+ to my father, and the Nook HD to my mother). Personally I find that the HD runs smoother, and the HD+ is a little slower then the HD (but you most likely won't notice it). It may be that they both have the same chipset, and with the HD, it only has to push a ~720p screen resolution, compared to the HD+ (which has a 10.1" screen with ~1080p resolution).
It's completely up to you, and your preference of screen size and resolution. The HD has slightly more than 720p resolution, and the HD+ has slightly more than a 1080p resolution.
Personally I prefer the Nook HD, due to it's compact size and portability (can almost take it anywhere); but the HD+ is great for watching videos.
All the best.
P.S. I find that there are more compatible apps for the HD, as it has a 720p resolution; but I last checked around 8 months ago. By now most apps could support the 1080 resolution, so there could be equal support for both tablets. But I'm not entirely sure, the HD should definitely be supported with most apps however.
goldentequila said:
Hi,
I'm considering buying Nook HD or HD+. The screen size is not an important issue for me. The only thing that matters to me is the processing speed.
Click to expand...
Click to collapse
I have both, each running 10.1.3. I ran benchmarks on both so FWIW, here are the results. HD shown first, then HD+
Quadrant: 2721, 2827
Antutu: 13234, 13324
Super Pi: 25.3, 24.3 (lower is better)
As you can see, they are pretty darn close.
while I do miss the portability of a 7 being able to easily read comics and magazines more than makes up for it. So it really depends what you want to do with the device.
Thank you, everyone. They are all very helpful. I appreciate it
As others have said, it kinda depends on what you want to use it for. I have the HD plus, and my wife has the HD. I use it for videos, so really appreciate the bigger screen. She uses it mostly for email, browsing, and watching her work-out videos, but doesn't need the bigger screen. She really appreciates the portability of the smaller device. Both are excellent.
My wife has the stock ROM with the free version of ADW launcher, which she has configured to her liking. I have CM11 nightlies which I update every week or so.
Anyway, we're both very happy with each device. Pick the one that best fits how you think you will use it and I'm sure you will be happy with it.
Sent from my LG-LS855 using Tapatalk 2
Ok so I've tried almost every rom there is for the Nook HD+ even some weird Pacman rom. But reciently I decided to try out the stock rom seeing I bought mine already rooted. Its crazy but it seems faster! I was locked in a crazy boot cycle the other day with a newer rom and just decided to install stock as I had it there on my external sd card. I updated it to version 2.2.0 even tho last time I tried it, it failed (Its ment to) and everything just seems smoother. Although its has now been unrooted
I guess the only trouble I will run into is that it doesn't have trim support? I can probably see it slowing down in about 3 weeks.. How is everyone elses experience with the stock rom been?
Maybe it is just your nook that run stock better. Mine two nook and lots of others are running CM like a charm.
At least for mine nook , CM 10.2 just blow stock rom out of water and back in and out again. Smoother , faster, more customisable, better battery life...
Many say also say CM 11 kick ass as well.
I think stock runs faster, too. At first, with a fresh install. After installing my 150 or so apps it gets as slow as anything else if not slower, plus there is no TRIM support. I prefer CM11; it's pretty impressive in both speed and performance, and it's hard for me to give up the many customizations available and built-in root access.
Darrian said:
I think stock runs faster, too. At first, with a fresh install. After installing my 150 or so apps it gets as slow as anything else if not slower, plus there is no TRIM support. I prefer CM11; it's pretty impressive in both speed and performance, and it's hard for me to give up the many customizations available and built-in root access.
Click to expand...
Click to collapse
hmmmm i was just pondering , how much faster cm11 will be compared with stock rom , just bought a HD+ , browsing is a bit sluggish and choppy when zooming in and out , using a fairly low level browser called Boat browser , i use the same browser on my Samsung Note 3 and its spot on nice and fast........i was hoping CM11 when i install it tomorrow would make quite a lot of difference .....seems as if it might not be based on the messages above !!!
justwondering said:
hmmmm i was just pondering , how much faster cm11 will be compared with stock rom , just bought a HD+ , browsing is a bit sluggish and choppy when zooming in and out , using a fairly low level browser called Boat browser , i use the same browser on my Samsung Note 3 and its spot on nice and fast........i was hoping CM11 when i install it tomorrow would make quite a lot of difference .....seems as if it might not be based on the messages above !!!
Click to expand...
Click to collapse
No. stock rom is definitely not faster. Not by a long shot. That's crazy talk.
jamus28 said:
No. stock rom is definitely not faster. Not by a long shot. That's crazy talk.
Click to expand...
Click to collapse
That's good to know, I shall install in the next few hours.
Which is your favourite version of kitkat for the nook hd+?
Antutu results are about 10% better with 10.1 or 10.2 vs stock on my HD. Didn't spend enough time with the stock ROM to tell if there was a noticeable performance difference.
Sent from my BN Nook HD using XDA Free mobile app
Just installed the latest CM11 nightly , boy what a difference it has made to the overall slickness / speed of the Android experince on the Nook HD+ , i only paid UK £54.99 delivered , turned up today , did my homework over the past few days and hey presto CM11 has turn a bit of a sluggish tab into a bargain great experince tablet !!! i generall use my Galaxay Note 3 for my evening surfing , but i guess i will be using the HD + most evenings instead !
jamus28 said:
No. stock rom is definitely not faster. Not by a long shot. That's crazy talk.
Click to expand...
Click to collapse
Maybe OP 's nook is different then most of ours . Stock rom has its magic on his nook.
But for those who is really looking for a more responsive rom, I strongly recommend giving cm a try.
My nook is on cm 10.2. It usually last 1 week for me on a charge and I do quite some reading and watching movies.
justwondering said:
Just installed the latest CM11 nightly , boy what a difference it has made to the overall slickness / speed of the Android experince on the Nook HD+ , i only paid UK £54.99 delivered , turned up today , did my homework over the past few days and hey presto CM11 has turn a bit of a sluggish tab into a bargain great experince tablet !!! i generall use my Galaxay Note 3 for my evening surfing , but i guess i will be using the HD + most evenings instead !
Click to expand...
Click to collapse
Dalvik or ART?
Sent from my BN NookHD+ using Tapatalk
I had the stock ROM with some the mods such as rooted and install unknown apps. I was happy with it but once I tried cm10.1 yellow kernel or the cm10.2 with the archdroid optimizations, I will never go back. I would recommend cm10.2 with the archdroid optimizations unless over clocking is important to you. If OC is important check out the yellow kernel ROM.
Sent from my BN NookHD+ using XDA Free mobile app
justwondering said:
hmmmm i was just pondering , how much faster cm11 will be compared with stock rom , just bought a HD+ , browsing is a bit sluggish and choppy when zooming in and out , using a fairly low level browser called Boat browser , i use the same browser on my Samsung Note 3 and its spot on nice and fast........i was hoping CM11 when i install it tomorrow would make quite a lot of difference .....seems as if it might not be based on the messages above !!!
Click to expand...
Click to collapse
I used to use Boat, too, but now I use Javelin. I recommend you check it out. Also make sure you run trim after you get everything installed and set up; it could make a difference.
I think on the HD+ there's something wrong with the video driver. Because I agree as well that with CM11 (any version M or nightly) the OS seems more responsive but video transitions and anything involving the screen updates is a dog. Try playing games like PvZ or some others with specific types of video needs and it's just a wreck. I made a video to highlight my Nook HD+ vs Kindle Fire (first generation slow as dirt) with the KF boot screen making the HD+ cry. You can see when I page back left after paging right the HD+ stutters trying to load the mostly empty page too.
https://www.youtube.com/watch?v=PEJK-VUZunk
brentil said:
I think on the HD+ there's something wrong with the video driver. Because I agree as well that with CM11 (any version M or nightly) the OS seems more responsive but video transitions and anything involving the screen updates is a dog. Try playing games like PvZ or some others with specific types of video needs and it's just a wreck. I made a video to highlight my Nook HD+ vs Kindle Fire (first generation slow as dirt) with the KF boot screen making the HD+ cry. You can see when I page back left after paging right the HD+ stutters trying to load the mostly empty page too.
https://www.youtube.com/watch?v=PEJK-VUZunk
Click to expand...
Click to collapse
Nook HD+ has a 1920x1280 LCD. That's a lot of pixels to render and it is a bit too much for the TI OMAP 4470 to bear it seems. Most high performance computers don't even render that many pixels.
swaaye said:
Nook HD+ has a 1920x1280 LCD. That's a lot of pixels to render and it is a bit too much for the TI OMAP 4470 to bear it seems. Most high performance computers don't even render that many pixels
Click to expand...
Click to collapse
The Kindle Fire HD 8.9" uses the same CPU/GPU and it doesn't have issues doing the same tasks. As the OP stated too the stock rom handles the load better too. I really believe we have a driver or memory management issue.
brentil said:
The Kindle Fire HD 8.9" uses the same CPU/GPU and it doesn't have issues doing the same tasks. As the OP stated too the stock rom handles the load better too. I really believe we have a driver or memory management issue.
Click to expand...
Click to collapse
Could be. Jon Lee of the Yellow Kernel thread has done some changes to the PowerVR and Vivante GPU drivers but it hasn't really changed much as far as I can tell.
He also suggested using the "Force GPU rendering" setting in developer options but that has some caveats. It forces apps that aren't configured to use GPU rendering to do so, but forcing things doesn't always work out as you'd like. Some apps use the GPU(s) already.
We have smart people working on the kernels here and if whatever causes the graphics lag was obvious/addressable it would probably be gone. I am positive that resolution is part of the problem. I've used lower end OMAP4 devices like Nook Tablet with 1024x600 and they were much smoother.
brentil said:
Try playing games like PvZ or some others with specific types of video needs and it's just a wreck.
Click to expand...
Click to collapse
Games aren't a really good way of deciding what's happening.
They can have different quality settings that there's generally no menu for, so its automatic picking for quality. Historically at least, Real Racing 3 would pick it wrongly and thus the game would have bad framerate on the nook hd+ needing use of a 3rd party app to force the game to lower graphics quality.
sandsofmyst said:
Games aren't a really good way of deciding what's happening.
Click to expand...
Click to collapse
I typically agree with this statement but if you view the video I posted in my other thread about this topic it's clearly apparent that an old as dirt, 1 GHz, 512mb, very first generation Android tablet running the exact same OS release smacked the crap out of the HD+. The Nook HD+ as is, is an embarrassing device running the non-default OS. The point of this is to ensure someone is aware of this and to see if anything can be done about it.
I haven't tried an emmc install of cm, only dual boot Jelly Bean and KitKat sd cards. But they break some of my regularly used apps, hence no emmc install.
But what I haave found is replacing the stock launcher with Holo launcher really speeds up stock. And Swapps task switcher lets you access recent apps. I'm not sure how it compares to an internal install of cm though, but I'm happy enough with performance.
In reading the commits for my Note II I noticed some new commits for the HD+ that haven't been closed yet. It looks like they're enabling a 128 MB swap partition for this device.
http://review.cyanogenmod.org/#/c/68840/
I had bought a Nook HD+ to be the replacement for my aging 1st generation Kindle Fire (Otter) tablet. However after having had it for 6 months now I've been rather disappointed with it. On paper it should have been better than my OG KF in every way but in reality that has not been true.
Nook HD+
Released 2012
1.50GHz TI OMAP 4470 (ARM Cortex A9 + PowerVR SGX 544)
1 GB of memory
32 GB storage (controller without issue too)
CM11 Nightly 2014.08.02 installed to internal storage
Davlik, stock kernel, not overclocked
Kindle Fire
Released 2011
1GHz TI OMAP 4430 (ARM Cortex A9 + PowerVR SGX540)
512 MB of memory
8 GB storage
CM11 Nightly 2014.08.02 installed to internal storage
Davlik, stock kernel, not overclocked
Whenever it comes to anything relating to the screen though this old as dirt KF tablet still performs better than this much newer and on paper better device. The Nook HD+ is obviously better as most apps perform much better like browsing FB app, looking at web pages with lots of content, running any number of non-visual intensive apps.
Places the Nook HD+ bogs down.
Paging around in the home screen stutters when loading icons even if the page has already been loaded.
Closing an app and returning to the home screen is extremely sluggish and then requires reloading of each page.
The boot animation is completely embarrassing, it jitters and skips like it's been beaten to death.
Scrolling through large pages of data in Chrome jitters rather badly.
Some games with intensive video requirements are just nasty at times. Running really slow or slowing down over time.
This video shows the KF next to the Nook HD+ to show how horrible the start animation is. After loading I page left then right and you can see the home page stutter on loading the icons when I come back left.
https://www.youtube.com/watch?v=PEJK-VUZunk
This video shows loading PvZ 2 where just the loading screens alone are running slower and jitter more. Then when loaded menus take longer to load and are very jittery compared to the KF.
https://www.youtube.com/watch?v=XCG8GKIWyso
Note - I even removed the overclock from the KF for these tests.
I realize the resolution is greater on the HD+ than the KF but the Amazon KF HD 8.9" uses the same hardware as the HD+ and it doesn't have the same issues. I also recall when running the stock firmware the system was much more responsive than it is under CM11 (any version).
This really seems like a lack of a good video driver or something wrong with the memory management.
I'm looking for serious discussion on this and not "well mine works fine so it must be yours..." or suggestions of running some random ROM or running TRIM or tweaking some random setting. This is something more than basic settings as I've already tried several over the last 6 months along with fresh installs of CM.
Your hd+ looks normal. I wouldn't think about it too much as its more than likely not getting better than that.
I just bought a new phone and the hardware made android so much more snappier then it was on the last one no matter how much people had tweaked the roms.
Just how it is. Its a cheap tablet with a nice size screen and hardware not quite capable.
sandsofmyst said:
Your hd+ looks normal. I wouldn't think about it too much as its more than likely not getting better than that.
I just bought a new phone and the hardware made android so much more snappier then it was on the last one no matter how much people had tweaked the roms.
Just how it is. Its a cheap tablet with a nice size screen and hardware not quite capable.
Click to expand...
Click to collapse
I've installed CM11 for two of my friends on their HD+'s, and their is snappier than mine. All are fresh installs. There is a very noticeable difference between mine (purchased in June, 2013), and theirs (purchased in May & June 2014). I didn't write everything down, but there was very little difference in the information for each device as reported by Quadrant.
Odenknight said:
I've installed CM11 for two of my friends on their HD+'s, and their is snappier than mine. All are fresh installs. There is a very noticeable difference between mine (purchased in June, 2013), and theirs (purchased in May & June 2014). I didn't write everything down, but there was very little difference in the information for each device as reported by Quadrant.
Click to expand...
Click to collapse
You maybe experiencing lag since you have been running longer (since 2013, not just with CM11). Also you may have a different emmc chip than they do. There are hardware differences between some devices
Sent from my BN NookHD+ using XDA Premium HD app
leapinlar said:
You maybe experiencing lag since you have been running longer (since 2013, not just with CM11). Also you may have a different emmc chip than they do. There are hardware differences between some devices
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
Thanks for the info. I'll ask them to send me the device info and I'll compare them both. Based off of what you said earlier, it may be due to too many writes to the chip? If so, I can live with that. I did abuse the heck out of it.
Thanks to you, VG, and everyone else in the community who put all of this together.
Odenknight said:
Thanks for the info. I'll ask them to send me the device info and I'll compare them both. Based off of what you said earlier, it may be due to too many writes to the chip? If so, I can live with that. I did abuse the heck out of it.
Thanks to you, VG, and everyone else in the community who put all of this together.
Click to expand...
Click to collapse
That is exactly what I meant. But if you run CM11 enough, it may speed up due to it running TRIM in the background.
Sent from my BN NookHD+ using XDA Premium HD app
Idk. Had two of these, one for three months and this one since around when you got yours. It performs as I remember and as I expect.
But since your comparing directly to another aren't ALL electronics that way? This display is more blue than that one, this hard drive has more errors that that one. This cpu can be oc'd more than that one.
There's always things causing speed differences. Background services, amount of free space - its best to have >50% free space, amount of installed apps, what leapinlar pointed out, etc.
In one month they could have no noticeable difference. Tis all I'm saying.
[You might was to switch over to using art instead of dalvic as well if not already. It may/may not help in making it feel faster as its suppoed to be the PBT™ (Performance Boosting Thing). Mine is on art. You may also want to go into the recovery and do a full backup before that.]
sandsofmyst said:
[You might was to switch over to using art instead of dalvic as well if not already. It may/may not help in making it feel faster as its suppoed to be the PBT™ (Performance Boosting Thing). Mine is on art. You may also want to go into the recovery and do a full backup before that.]
Click to expand...
Click to collapse
Pardon my ignorance, but how do you do this?
neoage said:
Pardon my ignorance, but how do you do this?
Click to expand...
Click to collapse
This post is for a phone, but it is the same for all devices (I just randomly picked a post):
http://forums.androidcentral.com/android-4-4-kitkat/404625-enabling-art-android-4-4-3-devices.html
Quote "To enable ART, Go to settings => About Phone =>Then go to Build Number and tap on Build Number until it ask if you want to enable Developer Options (or something in that effect) Once you say yes, Go back once and above About Phone you should see Developer options.
Under Developer options, go to "Select Runtime" (which should be on Dalvik) and select ART. Once you do this it will need to reboot your phone and then it will go through an update process on your Apps. Depending on how many Apps you have this can take a bit. I suggest doing when you won't need your phone for a few minutes and also make sure to plug your phone into power to help it go faster.
Once it is done, I suggest testing one or two apps to make sure they work. Then I would reboot your phone one more time. (This seems to fix a noticed app lag after the update). Once it comes back up, use your phone as normal and enjoy the free speed boost and a little added battery life. I have not noticed any issue with the 168 apps on my Nexus 5 nor any stability issue with the device, but again you millage may vary on your device and apps."
Some additional notes:
I stress doing a full recovery backup first. If you don't have enough internal space available, then that may cause it to be unusable when android starts up due to it failing while configuring art.
Phones (and other low internal storage devices) are a bit problematic due to amount of space available. My htc sensation couldn't enable art from not enough internal space. But the nook hd+ (for instance) has plenty (assuming its not all used).
Art is supposed to be enabled automatically in the next android release.
"With the L Developer Preview, ART is now the default runtime."
https://developer.android.com/preview/api-overview.html
Art requires more space due the fact that apps are pre-compiled during install:
"ART, on the other hand, uses an Ahead-of-Time compiler (AOT) to process application instructions before they're needed so things run more smoothly for the user."
http://lifehacker.com/android-art-vs-dalvik-runtimes-effect-on-battery-life-1507264545
You'll possibly lose about half a GB or more. It just depends on how many apps including the apps included with the rom.
The reason why the hd+ has poorer performance is probably due to it dragging a 1920x1080 (2073600 pixels) screen while the Fire has a 1024x600 screen (614400 pixels). Processing a full 1080p screen vs a 600 makes a big difference. The 544 isn't much of an upgrade over the 540 to make up for it. While it doubles the frame rate in graphics by about 2x over the 540, its having to push more than 3x the pixels.
Apple had the same issue with the ipad 3 when they went to the retina screen. It was a bit of a dog on pushing the retina screen, hence the quick rollout of the ipad 4 with a much faster cpu and gpu.
Lastly, amazon has a lot of pretty good paid developers optimizing the heck out of the Fire. I doubt its running a stock google display/graphics driver.
One of the things with high density displays. They're pretty and nice for text but you need plenty of horsepower to run them.
I signed up for alerts but doesn't seem like I was getting them.
I was comparing it to the OG Kindle Fire because it was the first real Android tablet and it's old as dirt now. Also as mentioned in the other performance vs stock thread when running the default Nook HD+ OS the interface is a lot more responsive and games perform better too. It seems like there's something missing between those kernel's/drivers and the CM version.
Of note these commits might help us with some of our issues. It looks like they're enabling a 128 MB swap partition for this device.
http://review.cyanogenmod.org/#/c/68840/