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Upgrading 280x to 290x, what benchmarks, noise, cooling, pictures, eyefinity etc would you like to see? - Page 6

post #51 of 64
Quote:
Originally Posted by overclockerjames View Post

I set the fan speed to 100% and it's the loudest I've ever heard a fan be. NOTE: There should NEVER be any normal gaming circumstances where a 290x gpu fan is at 100%. The software controlling it will never allow it to get to 100% because it is never necessary for the fan to do 100% even if the GPU is pegged at 100% for hours.

Best comparison is a leaf blower

I'm putting a video together with sound from all the fan speeds, from 20% to 100%, complete with what it sounds like while Valley benchmark is running. It was recorded less than 3 inches from the GPU with a iPhone 6 Plus so it's absolutely the worse case scenario of what the reference cooler sounds like.

told you it's meant for watercooling. have you tried uber mode? must have missed it. here was my second 290 test on air . . .



throttled like crazy affecting both usage. first one is/was with water.
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post #52 of 64
Powertune 1.0 doesn't monitor the voltage, so you have to undervolt the gpu yourself to inhibit the gpu from exhibiting this fluctuation.
The gpu will certainly sustain its stock clock at a 75 mv lower voltage level(ATT tested in my gpu, prime95 tested on my cpu, it is standard policy, I guess). I recommend you start undervolting with that value in mind. Powertune is good for extending operational temperatures higher, but the gpu will have dips and spikes above 80c that are distinct from the normal Powertune power gating, afaik. Which is why undervolting to a maximum temperature of 80C is so easily commendable without resorting to any other alteration.
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post #53 of 64
Thread Starter 
Quote:
Originally Posted by Scorpion49 View Post

Yep, its either have a 200mhz throttle or have a leaf blower. It starts out fine at 1000mhz but drops off considerably when you game for a while, all of the reference 290/290X I've had ended up around 800mhz after an hour or so of gaming, and I've had a lot of them (6 290's and 4 290X's). That being said, the last two 290X's I had both went 1200+mhz with a Corsair HG10 and an H55. A 1200mhz 290X is friggin fast.

I would say it's more complicated than that smile.gif

Let's see if I learned anything from all those science fairs in middle school rolleyes.gif

THEORY: fan at 100% will result in much faster GPU clock which results in much better FPS than fan at 42%

TESTS:

1) find a benchmark that the GPU does in the 30-40fps range so a higher FPS would be noticeable (10% at 30fps is 3fps, while 10% at 10fps is only 1fps so anything less than 10% would not be distinguishable).

Benchmarks that result in very high framerates (>60) may not put full load on the GPU so it will never reach 1000mhz resulting in inconclusive test results.

Furmark at 1920x1080 4x MSAA provided testable 30-40 fps range.

2) benchmark with fan at 42% and record results. GPU dropped to ~750 range and fps at 33



3) benchmark fan at 52% and record results. GPU jumped to 930mhz range, fps increased to 37fps, a 10% jump!



4) benchmark at 100% and record results. GPU jumped to 980-1000mhz range, fps did not increase, no noticeable difference despite the rapidly dropping temperatures (94 to 80 within minutes)



CONCLUSION: While the GPU is throttled at 42% resulting in a small loss of framerates in GPU burn-in benchmarks, drastically increasing the fan speed to 100% did not result in drastically increased framerates despite the GPU running much cooler. Small increase in fan speed to 52% resulted in significantly better framerates of 10%.

NEW THEORY: that during real game-play when GPU load is not 100% all the time the average framerates between 42% fan speed and 52% fan speed would be nearly identical. Further testing is required in actual in-game benchmarks. thumb.gif
Edited by overclockerjames - 10/31/15 at 11:16am
post #54 of 64
Your gpu temperature dropped to 80c, though. Stable gpu temperatures would increase pcb temperature and radiant heat effect on other components. The reference heatsink has its handicap of high impedance(the horizontal impedance of the heatsink is very long to push air through versus the vertical dimension which is easier for axial fans to move the stagnant air barrier). Centrifugal fans have high static pressure and low air flow. You would improve the air flow component of the cooling system with some axial fans facing the gpu intake from the periphery.
Edited by mtcn77 - 10/31/15 at 11:43am
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post #55 of 64
Quote:
Originally Posted by overclockerjames View Post

I would say it's more complicated than that smile.gif

Only if you make it more complicated. Furmark is literally useless, both AMD and Nvidia have been throttling that program at driver-level for years and years. Play an actual game and you'll see the results of dropping 200-300mhz quite clearly. It will still be far faster than your Tahiti chip, no doubt about it, but the point is AMD released a sub-par cooler that left a ton of performance on the table (and they knew it, look at what happened with the Fury X).
post #56 of 64
Thread Starter 
Quote:
Originally Posted by Scorpion49 View Post

Only if you make it more complicated. Furmark is literally useless, both AMD and Nvidia have been throttling that program at driver-level for years and years. Play an actual game and you'll see the results of dropping 200-300mhz quite clearly. It will still be far faster than your Tahiti chip, no doubt about it, but the point is AMD released a sub-par cooler that left a ton of performance on the table (and they knew it, look at what happened with the Fury X).

Benchmarks disagree with your belief that furmark is useless and that it's being throttled at driver-level
post #57 of 64
Quote:
Originally Posted by overclockerjames View Post

Benchmarks disagree with your belief that furmark is useless and that it's being throttled at driver-level
You're being impertinent, Furmark is called a power virus for a reason.
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post #58 of 64
Thread Starter 
Quote:
Originally Posted by Scorpion49 View Post

Your own benchmark shows it perfectly, at maximum clocks its pulling power which is why you don't see any gains. I don't really even understand the point of what you're trying to prove, honestly. The 290X has been around since 2013 and we know everything there is to know about it already.

If you don't like my thread....

post #59 of 64
You're on a forum dude, don't attribute to yourself.rolleyes.gif
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post #60 of 64
Quote:
Originally Posted by overclockerjames View Post

If you don't like my thread....

I quite like this thread, and I hope you enjoy the heck out of your new GPU.
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