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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1699

post #16981 of 38721
Quote:
Originally Posted by psyside View Post

This cards have nothing in BF3 compared to 680, i mean nothing, the smoothness is far far from 6xx series, i get 55 fps it feels like 40 on 680....even worse maybe. Also the fps stability is nowhere near 680 frown.gif

Butter smooth for me..

Quote:
Originally Posted by Bal3Wolf View Post

good luck looks like i can lower my memory voltage droping it to 1.631 from 1.65 and got me even more points on 3dmark11 lol wished it showed my real clocks lol.
http://www.3dmark.com/3dm11/4701586

1200/1800

Odd it doesn't show your real clocks, does for me.

Quote:
Originally Posted by Nwanko View Post

Big problem here. Ever since i've cleaned my 7950 dual-x my temps went from 72 degress(Celsius) to 80-83 degress(Celsius) in BF3 full load 1150/1550 1.156v. I screwed the cooler off,kept the vrm plate on,cleaned the paste off,put on the temps went up for 10 degress. Its like 80-83 degress at 100% fan,my room temps arround 23 degress(Celsius).
I tried it twice,and the temps wont go down. Am i doing something wrong, is the compound not good enough? The cooler has only 4 screws,i tighten them carefully as far as they go...
Anyone with the solution?

I always spread when applying TIM to an exposed die.
Works better IMO.
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post #16982 of 38721
Quote:
Originally Posted by grunion View Post

Butter smooth for me..
1200/1800
Odd it doesn't show your real clocks, does for me.
I always spread when applying TIM to an exposed die.
Works better IMO.

Does it feel butter smooth when you go trough smoke/explosions and similar volumetric effects?

And what drivers are you using, is it 12.9 & 12.9 CAP1?

Maybe im more sensitive to this....but im 99% sure 680 was way way smoother, on higher settings as well.
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post #16983 of 38721
Quote:
Originally Posted by Bal3Wolf View Post

is running my memory at 1.650 and 1980mhz ok for 24/7 under water far as i can tell no ecc is kicking in testing with games fps are going up not down higher i push the memory.


I highly doubt that. That's world record speeds there on the memory at 1.65v? I don't know if you're in ecc but with a single card you can push excessive mem speeds more easily than with crossfire. Anyways, in benches supposedly high memory clocked rigs have lost to lower clocked rigs and by decent margins.
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post #16984 of 38721
What is the maximum before ECC on 7970 memory chips, they use ROC modules instead of 7950 RF which are lower rated.

I guess around 1800?
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post #16985 of 38721
How hot do 7970 VRAM chips run without heatsink cooling on average?
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post #16986 of 38721
Quote:
Originally Posted by psyside View Post

What is the maximum before ECC on 7970 memory chips, they use ROC modules instead of 7950 RF which are lower rated.

I guess around 1800?

It's random. In each case you have to do a series of benches to determine the point where you lose performance, at which point it means you;re a few ticks too high already. Running a bench that doesn't stress the gpu memory throughput won't push it vs one that pays dividends for high mem throughput.
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post #16987 of 38721
Quote:
Originally Posted by tsm106 View Post

It's random. In each case you have to do a series of benches to determine the point where you lose performance, at which point it means you;re a few ticks too high already. Running a bench that doesn't stress the gpu memory throughput won't push it vs one that pays dividends for high mem throughput.
Well nothing is better then Crysis Warhead, ICE levels for that, with tons of mods, it just kills the memory devil.gif
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post #16988 of 38721
BTW i'm using http://www.coolink-europe.com/en/categories/13_20.html

Is it any good or should i use MX-2 or something?
post #16989 of 38721
Quote:
Originally Posted by tsm106 View Post

I highly doubt that. That's world record speeds there on the memory at 1.65v? I don't know if you're in ecc but with a single card you can push excessive mem speeds more easily than with crossfire. Anyways, in benches supposedly high memory clocked rigs have lost to lower clocked rigs and by decent margins.

well im using games and benchmarks to test been using 3dmark11 and sniper elite v2 and my fps go up with the memory clocked higher not down. If you know a test to use that will really show me if my memory is running good at 1980 i will try it.

http://www.3dmark.com/3dm11/4707260
single card 1213/1980. P10847

http://www.3dmark.com/3dm11/4707327
single card 1213/1505. P10287

i gain 560 points going from 1505 to 1980 on my memory it seems to be working.

http://hwbot.org/submission/2254291_mevorach_3dmark11___performance_radeon_hd_7970_10858_marks
i match up to him even tho he has a sandy-e at 4700 vs my sandy at 5ghz.
Edited by Bal3Wolf - 10/20/12 at 10:50am
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post #16990 of 38721
Increasing mem voltage results ECC starting on higher mem clocks?

I can push mems to 1850 on my 7950 vapor-x at standard 1,6v but ECC starts doing his job from 1525mhz and mark11 score going down...
But higher core clock is not much important on 79xx than mems ?

With 3d mark11 graphics score and mem's oc'ing it should increase constant or what?
For me on core 1100mhz mem clock:
1400mhz - G8801
1450mhz - G8881 (80pts differ)
1500mhz - G8928 (47pts differ)

(sorry for my poor english)
Edited by adamlop - 10/20/12 at 1:57pm
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