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Could memory-timing tweaked BIOSes help game performance?

post #1 of 13
Thread Starter 
A guy named Stilt has been custom-"correcting" memory timings in AMD card bioses, apparently to ecstatic results -- in the mining world. People exclaim hashing ~20% higher after a memory-timing adjustment on their BIOS.

Would these AMD card memory-timing fixes also improve general GPU/FPS performance in gameplay situations?

https://litecointalk.org/index.php?topic=12369.0




I've heard rumors over the years of performance/FPS improvements from flashing other cards' BIOSes, revolving around some concept of "memory timings", but I've never found anyone with much concrete detail or knowledge on such. It's usually shrugged off as memory-overclocking, like the two terms are one and the same (timing <-> memory clock speed). I'm guessing this thread is the gist of what memory timings are about.

The question is whether memory timing adjustments would actually help....?
post #2 of 13
Well, memory timings are basically wait periods between operations on the memory, and benchmarks of desktop memory show that tighter timings can sometimes provide greater benefits than higher clock speeds, so I don't see why it wouldn't apply to vram as well.
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post #3 of 13
hey guys I have one of those bios fixs fro stilt on my 2 xfx 7970 cards and he tightened up tthe times on
them since it had the crappy hynix mfr chips an it helped with my mining it also seemed to ghelp some with stutters
and such in some games I'd say try it. It took my khashes on my main comp from like 550ish to right around 600
post #4 of 13
Quote:
Originally Posted by Coldblackice View Post

A guy named Stilt has been custom-"correcting" memory timings in AMD card bioses, apparently to ecstatic results -- in the mining world. People exclaim hashing ~20% higher after a memory-timing adjustment on their BIOS.

Would these AMD card memory-timing fixes also improve general GPU/FPS performance in gameplay situations?

https://litecointalk.org/index.php?topic=12369.0




I've heard rumors over the years of performance/FPS improvements from flashing other cards' BIOSes, revolving around some concept of "memory timings", but I've never found anyone with much concrete detail or knowledge on such. It's usually shrugged off as memory-overclocking, like the two terms are one and the same (timing <-> memory clock speed). I'm guessing this thread is the gist of what memory timings are about.

The question is whether memory timing adjustments would actually help....?

I cant get a single dropbox link from that thread to work for me. is drop box having issues or has he removed every bios?
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post #5 of 13
The Stilt's bioses has disabled ROP's to save power so they will negatively affect gaming performance.

But yeah for mining they aee great and if somebody could get a signed bios with memory latency tweaks without disabling ROP's it should be great.
Edited by AlDyer - 3/11/14 at 2:22am
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post #6 of 13
Thread Starter 
Is there any way to (easily) re-enable the ROP's so we could use them for gaming? Anyone know how to fix memory timings in general, so we could do it ourselves?

From the way everyone was asking Stilt for his help, I'm guessing it's not :/

What kind of game or FPS performance might one be able to gain from fixed timings? Mining-wise, it looked like people were getting anywhere from 10% upwards of 20% increase! That would be mindblowingly fantastic if we could get similar performance increases in games.
Quote:
Originally Posted by inedenimadam View Post

I cant get a single dropbox link from that thread to work for me. is drop box having issues or has he removed every bios?

Quote:
Originally Posted by AlDyer View Post

The Stilt's bioses has disabled ROP's to save power so they will negatively affect gaming performance.

But yeah for mining they aee great and if somebody could get a signed bios with memory latency tweaks without disabling ROP's it should be great.

Here's a post of someone who's amassed all the bioses, providing a wiki-like thread and bios library:

https://litecointalk.org/index.php?topic=16811.0
https://docs.google.com/spreadsheet/ccc?key=0Aq-2thWXh95FdENoRDlYN0ZlemFzNU1kaTJmampKSWc&usp=sharing#gid=0
post #7 of 13
Quote:
Originally Posted by Coldblackice View Post

Is there any way to (easily) re-enable the ROP's so we could use them for gaming? Anyone know how to fix memory timings in general, so we could do it ourselves?

From the way everyone was asking Stilt for his help, I'm guessing it's not :/

What kind of game or FPS performance might one be able to gain from fixed timings? Mining-wise, it looked like people were getting anywhere from 10% upwards of 20% increase! That would be mindblowingly fantastic if we could get similar performance increases in games.

Here's a post of someone who's amassed all the bioses, providing a wiki-like thread and bios library:

https://litecointalk.org/index.php?topic=16811.0
https://docs.google.com/spreadsheet/ccc?key=0Aq-2thWXh95FdENoRDlYN0ZlemFzNU1kaTJmampKSWc&usp=sharing#gid=0

Mining is very memory intensive and unfortunately fixing the timings would not correlate even near the performance increase. It would boost the memory nicely and after overclocking you would get a couple of frames more. Right now if you have Elpida memory, overclocking it will be almost pointless. With the BIOS it should give us a slight boost , but it is still more about core clocks. The memory BIOS itself would give only tiny boosts, though.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by AlDyer View Post

Mining is very memory intensive and unfortunately fixing the timings would not correlate even near the performance increase. It would boost the memory nicely and after overclocking you would get a couple of frames more. Right now if you have Elpida memory, overclocking it will be almost pointless. With the BIOS it should give us a slight boost , but it is still more about core clocks. The memory BIOS itself would give only tiny boosts, though.

Thanks for the info.

What did you mean by those that overclocking is pointless for those that have "Elpida" memory? Do you mean overclocking in general (i.e., core + memory clocks)? Or just overclocking memory (mem clocks)? Or meaning in terms of memory timings?

I have a Sapphire 7950 Dual-X w/ Elpida memory. And although everyone/everywhere said core overclocking was more important, I consistently found FPS improvements by continually bumping memory clocks in static/repeatable benchmarking tests, with the benefits seeming to top out at 1675mhz. Of course, maybe that's just an anomaly, however.
post #9 of 13
Quote:
Originally Posted by Coldblackice View Post

Thanks for the info.

What did you mean by those that overclocking is pointless for those that have "Elpida" memory? Do you mean overclocking in general (i.e., core + memory clocks)? Or just overclocking memory (mem clocks)? Or meaning in terms of memory timings?

I have a Sapphire 7950 Dual-X w/ Elpida memory. And although everyone/everywhere said core overclocking was more important, I consistently found FPS improvements by continually bumping memory clocks in static/repeatable benchmarking tests, with the benefits seeming to top out at 1675mhz. Of course, maybe that's just an anomaly, however.
Quote:
Originally Posted by Coldblackice View Post

Is there any way to (easily) re-enable the ROP's so we could use them for gaming? Anyone know how to fix memory timings in general, so we could do it ourselves?

From the way everyone was asking Stilt for his help, I'm guessing it's not :/

What kind of game or FPS performance might one be able to gain from fixed timings? Mining-wise, it looked like people were getting anywhere from 10% upwards of 20% increase! That would be mindblowingly fantastic if we could get similar performance increases in games.

Here's a post of someone who's amassed all the bioses, providing a wiki-like thread and bios library:

https://litecointalk.org/index.php?topic=16811.0
https://docs.google.com/spreadsheet/ccc?key=0Aq-2thWXh95FdENoRDlYN0ZlemFzNU1kaTJmampKSWc&usp=sharing#gid=0

Overclocking memory, but I meant with the R9 290(x)series, the timings are better with 7900 and 280x and overclocking will be more beneficial
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post #10 of 13
Hello, i have a powercolor R9 290X with Elpida memory. I don't mine, but instead play games. I would like to use this bios for its optimized memory timings, but with all the ROPs active.

If the original bios author isn't active/willing do do this, where would one start to edit this back in?

Thank you.
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