Xoom ULV GeForce (GPU) overclock? - Xoom Q&A, Help & Troubleshooting

So the Tegra2 SoC has an Ultra Low Voltage GeForce GPU in it, I believe I remember hearing that it is based on the old GeForce 5XXX series (correct me if I'm wrong.)
We've all been enjoying the 50% CPU overlock since right after launch. What are the chances for a GPU overclock? Is it even possible? What modifications might need to be done to start overclocking the GPU?

I believe we cant because they are both on the same chip. There is only so much voltage we can utilize. I remember seeing this somewhere..... Lol
Sent from my SGH-I897 using XDA App

Related

[Q] Gaming Capabilities?

Hello
Will the sensation be better for playing games than the SGS 2, which needs games to be updated before they can play on the mali400? I hoping apps and games don't have to be recoded/reprogrammed to work on the adreno 220, if they work/play fine on the adreno 205?
Thanks
Ian
Not 100% sure but I think the problem with the SGS2 is that the Mali400 GPU doesn't support any form of texture compression. So any games that use texture compression needs to be recompiled and have the textures modified.
The Sensation should not have the same problem since the adreno 220 is just the next gen of the 205 and should be backward compatible.
benchmark
Any new benchmarks comparing ADRENO 220 with MAli 400
i've seen a benchmark for an overclocked CPU with ADRENO 220 (clocked at 1.5 GHz). This does not give a good comparison as the real life sensation will be clocked at 1.2 GHz
Also any new overall benchmarks for the sensation, the old ones scored horrible 1200 pts. People are saying this is because the preliminary firmware is using only one core, but they did not post any reference proving their claim
RADLOUNI said:
Any new benchmarks comparing ADRENO 220 with MAli 400
i've seen a benchmark for an overclocked CPU with ADRENO 220 (clocked at 1.5 GHz). This does not give a good comparison as the real life sensation will be clocked at 1.2 GHz
Also any new overall benchmarks for the sensation, the old ones scored horrible 1200 pts. People are saying this is because the preliminary firmware is using only one core, but they did not post any reference proving their claim
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Click to collapse
Wtf are you saying -_- ? String a complete coherent sentence together, damn no child left behind...
Sent from my LG-P999 using XDA App
RADLOUNI said:
Any new benchmarks comparing ADRENO 220 with MAli 400
i've seen a benchmark for an overclocked CPU with ADRENO 220 (clocked at 1.5 GHz). This does not give a good comparison as the real life sensation will be clocked at 1.2 GHz
Also any new overall benchmarks for the sensation, the old ones scored horrible 1200 pts. People are saying this is because the preliminary firmware is using only one core, but they did not post any reference proving their claim
Click to expand...
Click to collapse
What you're saying is not entirely true.
The 1.5 GHz is the chip's default speed (check Qualcomm's website) - the benchmark was of the Qualcomm development unit (MDP). The Sensation uses an underclock probably to reserve battery life.
Keep in mind, and I'm basing it entirely on tidbits I hear here and there on this forum and on tech blogs, that Qualcomm CPUs tend to get higher overclock speeds than the competition (or at least those who do it make more noise ).
As for the early benchmark - I was able to play with a similar device in question, software version 0.50.something, and yes - it was horrid. I ran Neocore just for laughs and it got 5 FPS. Later on I had a few minutes with one running 1.05 (not the final 1.20 that was leaked) and Neocore got 59.9. Wish I could upload a screenshot, but if I did I'd probably get fired (it has the confidential watermark with the serial number on it, which could than trace it directly to me).
Do take the above with a grain of salt - this is the internet and at the moment I have no way to give solid proof that what I said is true - you can just take my word for it (which if you're smart - you won't).
I will say this though - I have already pre-ordered one.
I think the Qualcomm cpus are the most efficent by far. My dhd runs undervolted all the way up to 1.2ghz and overvolts upto 1.6ghz, we have a stable 2ghz kernel atm too, my phone has never felt warm or hot. So it wouldn't surprise me if it was natural running at 1.5ghz.
Sent from my Desire HD using XDA App
Trekest said:
What you're saying is not entirely true.
The 1.5 GHz is the chip's default speed (check Qualcomm's website) - the benchmark was of the Qualcomm development unit (MDP). The Sensation uses an underclock probably to reserve battery life.
Keep in mind, and I'm basing it entirely on tidbits I hear here and there on this forum and on tech blogs, that Qualcomm CPUs tend to get higher overclock speeds than the competition (or at least those who do it make more noise ).
As for the early benchmark - I was able to play with a similar device in question, software version 0.50.something, and yes - it was horrid. I ran Neocore just for laughs and it got 5 FPS. Later on I had a few minutes with one running 1.05 (not the final 1.20 that was leaked) and Neocore got 59.9. Wish I could upload a screenshot, but if I did I'd probably get fired (it has the confidential watermark with the serial number on it, which could than trace it directly to me).
Do take the above with a grain of salt - this is the internet and at the moment I have no way to give solid proof that what I said is true - you can just take my word for it (which if you're smart - you won't).
I will say this though - I have already pre-ordered one.
Click to expand...
Click to collapse
If the neocore was that fast, that'll do me nicely one other question, will the sensation struggle to play resource heavy games with the ram only being 768mb?
Thanks
Ian
Beaker491 said:
If the neocore was that fast, that'll do me nicely one other question, will the sensation struggle to play resource heavy games with the ram only being 768mb?
Thanks
Ian
Click to expand...
Click to collapse
No it will not heavy emulator rely more on the CPU than the gpu. Look at computer you can have a crappy gpu and an I7 processor would play an xbox Wii emulator just fine. Mytouch 4g plays n64 emulator just fine.
Sent from my HTC Vision using XDA Premium App
hmmm... honestly its what resources the games use because i have seen bench marks of the intel i5, i7 vs the amd phenom 2 x4 and the scores were quite similar because of the gpu... so i would take everything said with a bit of salt

[Q] 1.6 Ghz OC cpu damage?

hi all, i was just wondering, will OCing my captivate to 1.6 Ghz damage the CPU?
thanks!
stewi21 said:
hi all, i was just wondering, will OCing my captivate to 1.6 Ghz damage the CPU?
thanks!
Click to expand...
Click to collapse
Couple of things for you:
First, I doubt your device will run stable at 1.6 GHz. Most Galaxy S-type devices won't run stable above 1.4 GHz, and while some do, only a very lucky few can run at 1.6 GHz.
Second, yes, you can damage your CPU doing that. Higher clock speed = more heat generated & more time at higher voltages. That means more chance of doing physical hardware damage to your device.
That being said... you are *probably* not likely to do harm to your device if you overclock to 1.6 (and it manages to be stable) and you aren't running benchmarks 24/7.
I think the real question for you, is why would you want to run your device that fast? If you want high benchmark scores to impress your friends, just cheat Quadrant, way easier, and less chance of causing problems. If your device is so unresponsive at it's current speed, then find a different ROM/software setup.
1.6 GHz should never really be necessary.
oh okay, it hasnt actually arrived yet, i was thinking it would help running games meant for dual core procs.
thanks for the reply!
stewi21 said:
oh okay, it hasnt actually arrived yet, i was thinking it would help running games meant for dual core procs.
thanks for the reply!
Click to expand...
Click to collapse
Take a look at Chainfire3d with the Nvidia module.
Long story short, all of the current "dual core" phones are running Tegra2. But Tegra2 GPU <= Hummingbird GPU.
Problem is, games optimized for the Tegra will have a harder time running on our PowerVR. Not because of graphics horsepower, but because of specific optimization done by the programmers.
Chainfire's driver deal should help with that, in fact there is a thread floating around here somewhere with all the files you need.
PS Don't worry about those dual cores phones beating up on your little Captivate. Once you get it rooted, loaded up with a custom ROM and kernel, and running Gingerbread, I think you'll find none of the competition comes close...
I tried 1.6 ghz once and it was like insta-freeze. I'm very stable at 1.4 though.
Samsung Captivate running Paragon RC6 with 1.4ghz kernel.
Sent from XDA android app.

[Q] (Q & A) 2 Ghz Processing?

Is is possible for us to overclock our infuse to 2 Ghz? It's kind of lame that we are stuck at 1.6 Ghz when SGS i9000 are overclocking theirs to 1.7 Ghz and they have a weaker processor than us! Just wondering. Thanks!
niral7 said:
Is is possible for us to overclock our infuse to 2 Ghz? It's kind of lame that we are stuck at 1.6 Ghz when SGS i9000 are overclocking theirs to 1.7 Ghz and they have a weaker processor than us! Just wondering. Thanks!
Click to expand...
Click to collapse
We can get up to 1.8 Ghz last time I checked.
Sent from my SAMSUNG-SGH-I997 using xda premium
Kevinr678 said:
We can get up to 1.8 Ghz last time I checked.
Sent from my SAMSUNG-SGH-I997 using xda premium
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Click to collapse
1.8 Ghz? How?
Excuse me, I should say you can get it to 1.8, but 1.6 is the the highest that's really stable. I seem to have read that may people have gotten 1.8 with few issues however.
Sent from my SAMSUNG-SGH-I997 using xda premium
There was a kernel that reported 1.8 incorrectly.
I have looked at those 1.7 GHz kernels and there is some interesting development going on with voltages to make it more stable but it is a weird bastard conglomeration of clocks and those kernels have there own issues. The limiting factor it's not the quality of the CPU but that the multipliers are locked at no more than 8 times the buss speed. Overclocking beyond 1.6 means buss overclocking which causes all kings of issues that must be worked through often by under clocking other things. most infuses are perfectly stable at 1.6 with no special treatment like exists in those 1.7 kernels but heat can run away and cause crashes when using the cell and GPS radios. It would be cool to run some benchmarks on Miui with 1.7 GHz to see if you can break 5000 in quadrant but really it is only 6% more than what we have in a perfect stable form. Not to mention that the CPU is throttled and would rarely see that speed and tweaking the governor would probably do more for the user since going to 1.7 means compromises in other clocks and potential problems.
It's not a matter of possible but a matter of why?
And for the record the best experience I had with my captivate was on froyo with glitterballs' stream kernel which had some cool stuff going on with hardware acceleration running jfs lagfix at 800 mhz. If I could get some of that in a GB kernel that I could run at 600 or 800 mhz with the insane undervolt my CPU can tolerate I'd be in heaven. Battery life for days!

[q] cpu chipset

does anyone know if setting the CPU SPEED to 1.5 GHz is dangerous while the SENSATION XL has the same chipset as the desire s has (Qualcomm Snapdragon MS8255) and the SENSATION XL's CPU speed is set to 1.5GHz .
sensation has msm8260 (dual core 1.2-1.5 GHz and adreno 220)
Sensation XL indeed has MSM8255.
Just like in PCs, chipsets in phones are binned not only by their type, but also by their target frequency. You don't go overclocking Core2Duo 1.8 GHz to 2.4 GHz because it's "the same CPU", right? Because it isn't the same CPU. The same applies here.
אז זה מסוכן או לא ?
English, please.
Answer - would you run the CPU on your computer at 1.5x the speed it was made to run, because there's CPU with the same name (i3/i5/i7/whatever) that runs at 1.5x the speed?
The same answer applies to your phone.
I expect people to be able to make minimal logic work with their own brains rather than just answering "yes/no". I think that this way people actually understand more than what they've asked for.
i guessed that was the answer but just wanted to be sure...
thanks anyway !
msm8255 should run stable on 1.5GHz (if stock freq is lower)
441Excelsior said:
msm8255 should run stable on 1.5GHz (if stock freq is lower)
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Click to collapse
No it won't. It depends on the specific part, and few parts run stock 1.5 GHz without stability issues surfacing / burning out very fast (if overvolted).
If you really want - you can try it on T-Mobile G2, that has MSM8255 of the earliest bin, with stock at 800MHz. Good luck, don't forget to write how did you like a phone as a toaster.
I suggest refraining from bad advice, especially when it's in the forum and it's not your phone you're talking about. You can burn your phones as much as you like, but don't go around suggesting it to others. Just let me understand something: you have stock non-rooted ICS and have no idea about such basics as which guide to use to downgrade, but you allow yourself posting about chipset frequencies?
so which speed can i overclock to that shouldn't turn my device into a toaster ?
deanshugan said:
so which speed can i overclock to that shouldn't turn my device into a toaster ?
Click to expand...
Click to collapse
1.2 runs most things with no lag.
Sometimes you're the windshield; sometimes you're the bug.
- Mark Knopfler.
The point is each chip is different even if the same model
What works for me on my device won't necessarily work for you
So test and see if your brave enough, but be aware of the consequences
Sent from my Nexus 4 using xda premium
I overclock my ds to1.5 every time I play games and it doesn't even get warm. So I think it's pretty harmless.
Sent from my Desire S using xda premium

Overclocking/undervolting the TF700 gpu

Dear XDA people,
Im currently working with Max's V4 RC2 kernel in combination with Cromi-X 4.6.9 (still need to update to the latest), which gives me a pretty smooth working tablet.
Now, im running the cpu at 1900mhz, 1225mV (still testing if i can go lower), and I can adjust speed and voltage nicely with Trickster Mod.
But, I would wan't to crank up the gpu speed (which is currently 666mhz I think?) and have the same "options/settings" available to do so. For example, a rom limitation of 750/800mhz on the gpu, with a variation of voltages to choose from. This way I can get as much gpu power as possible, since i find gaming on the tf700 pretty disappointing in terms of performance (of course a lot of games are not optimized for tegra).
Do you guys know what would be the best possible solution to overclock/adjust the gpu speed+voltage?
Thanks!
Sent from my GT-I9505 using xda app-developers app
tijsva said:
Dear XDA people,
Im currently working with Max's V4 RC2 kernel in combination with Cromi-X 4.6.9 (still need to update to the latest), which gives me a pretty smooth working tablet.
Now, im running the cpu at 1900mhz, 1225mV (still testing if i can go lower), and I can adjust speed and voltage nicely with Trickster Mod.
But, I would wan't to crank up the gpu speed (which is currently 666mhz I think?) and have the same "options/settings" available to do so. For example, a rom limitation of 750/800mhz on the gpu, with a variation of voltages to choose from. This way I can get as much gpu power as possible, since i find gaming on the tf700 pretty disappointing in terms of performance (of course a lot of games are not optimized for tegra).
Do you guys know what would be the best possible solution to overclock/adjust the gpu speed+voltage?
Thanks!
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I think 666mhz GPU setting is probably reserved for Satans minions. At the moment the only way to control GPU speed is by adjusting the voltage. This is easiest using hunds kernel (3.1 if you have problems with 3.2) and his app. Together, you can crank the GPU all the way up to 775MHz and fry some eggs on the back of your TF700 and waiting for it to go into nuclear meltdown.
I know the gpu runs hot, thats why I want to see what speeds can be achieved with limited voltage. So you‘re saying the only way to change gpu speed is by setting a higher voltage for it? Why is that exactly?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
You've posted this in the wrong forum, so it will be deleted, in the mean time there is really no reason to use 1900mhz even less so while gaming. 1700mhz at max (it can go higher but you wont see much change/ if at all in benchmarks/ games but u'll see the difference in battery life)
As for gpu i run 750 mhz but again the difference between 650 - 750 mhz is hardly noticeable, gaming performance isn't great on the tf700, the tf300t doesn't look as good but its noticeably smoother with 3d
Moral of the story the tegra 3 gpu isn't powerful enough for 1920x1200 the tegra 4 wont be much better, the tegra 5 is the interesting one
tijsva said:
So you‘re saying the only way to change gpu speed is by setting a higher voltage for it?
Click to expand...
Click to collapse
Yes, that's what I'm saying. Unless you want to learn to create kernels and do all the magical voodoo these wizards do to bring us OC kernels!
tijsva said:
Why is that exactly?
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Click to collapse
I have no idea, been wondering that myself. I even posted the question somewhere about a week ago, but no one enlightened me. I really reccomend using hunds kernel and app though. There is a "gaming" option in his app that works very well, good speed without the ominous red glow of molten metal on your TF700's back panel.
TitanUranus said:
Yes, that's what I'm saying. Unless you want to learn to create kernels and do all the magical voodoo these wizards do to bring us OC kernels!
I have no idea, been wondering that myself. I even posted the question somewhere about a week ago, but no one enlightened me. I really recommend using hunds kernel and app though. There is a "gaming" option in his app that works very well, good speed without the ominous red glow of molten metal on your TF700's back panel.
Click to expand...
Click to collapse
Are you saying increasing gpu voltage will subsequently increase gpu frequency? (i have no idea how it works, ive never bothered to look into it but now im interested) _that or Hunds will know but im guessing if thats the case freq and voltage must be linked in a voltage table but i would have thought freq could be changed independently to voltage
JoinTheRealms said:
You've posted this in the wrong forum, so it will be deleted, in the mean time there is really no reason to use 1900mhz even less so while gaming. 1700mhz at max (it can go higher but you wont see much change/ if at all in benchmarks/ games but u'll see the difference in battery life)
As for gpu i run 750 mhz but again the difference between 650 - 750 mhz is hardly noticeable, gaming performance isn't great on the tf700, the tf300t doesn't look as good but its noticeably smoother with 3d
Moral of the story the tegra 3 gpu isn't powerful enough for 1920x1200 the tegra 4 wont be much better, the tegra 5 is the interesting one
Click to expand...
Click to collapse
I know the tf700 isnt much of a gaming tablet unfortunately, but then again, why not setting it up so that it runs games as smooth as the hardware will allow ? Every small improvement is an improvement if you ask me.
For 750mhz gpu, what kernel are you using?
Sent from my ASUS Transformer Pad TF700T using xda app-developers app
I'm using hundsbuahs latest kernel, the problem with tegra CPUs is thermal throttling, it starts around 72c on a lot of devices (not sure about the tf700) at 1900 you could find worse gaming performance than a lower cpu / GPU clock speed. Its completely up to you, hundsbuahs kernels give users a lot of flexibility as they can push the devices to the limit, I like _that's kernels personally they suited to my usage (what ever that means)

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