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post #1541 of 4099
Overclocked my MSI 7850 power edition to 1300/1450 MHz and ran the Heaven benchmark all settings maxed.


I guess I have a slight cpu bottleneck here.
Edited by om3nz - 9/12/12 at 8:01am
post #1542 of 4099
Quote:
Originally Posted by Picklewheels View Post

Okay, I upped the voltage to 1.218 V, core 1200, mem 1400 and got the no signal error again at 90% of the burnin. temps around 72C
EDIT: Did a burn in test @ 1.218 V, core 1150 and mem 1400, temps around 70-71C and passed fine. So you think I'm hitting a wall?
You hit the wall at that particular voltage, bump it up some.
post #1543 of 4099
How well does a reference 7870 run after a strong overclock? 7950 levels?
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post #1544 of 4099
Quote:
Originally Posted by Milestailsprowe View Post

How well does a reference 7870 run after a strong overclock? 7950 levels?
Linus just made a video yesterday that might sort of answer that question.
In Crysis 2 the overclocked 7950 beat the overclocked 7870 by a lot, in Skyrim it closed the gap a bit though.


Unless you're asking about overclocked 7870 vs stock 7950, but that would be stupid because you can just as easily overclock the 7950.
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post #1545 of 4099
Quote:
Originally Posted by TheYonderGod View Post

Linus just made a video yesterday that might sort of answer that question.
In Crysis 2 the overclocked 7950 beat the overclocked 7870 by a lot, in Skyrim it closed the gap a bit though.
Unless you're asking about overclocked 7870 vs stock 7950, but that would be stupid because you can just as easily overclock the 7950.
I'm asking if I overclock a 7870 will I get to the levels of a 7950 out of the box not overclocked. I'm just curious how far a stable overclock can go.
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post #1546 of 4099
Quote:
Originally Posted by Milestailsprowe View Post

I'm asking if I overclock a 7870 will I get to the levels of a 7950 out of the box not overclocked. I'm just curious how far a stable overclock can go.

HD 7870 at 1.2 Ghz will easily match or exceed HD 7950 at 800 Mhz. But thats a wrong way to look at it. the HD 7870 has lesser OC headrom compared to HD 7950. factory overclocked HD 7950s are available at 950 Mhz which will match a 1250 - 1300 Mhz HD 7870. Once you overclock the HD 7950 to 1150 - 1200 Mhz it will whack the HD 7870 overclocked by 25% or more .
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post #1547 of 4099
Quote:
Originally Posted by Picklewheels View Post

Okay, I upped the voltage to 1.218 V, core 1200, mem 1400 and got the no signal error again at 90% of the burnin. temps around 72C
EDIT: Did a burn in test @ 1.218 V, core 1150 and mem 1400, temps around 70-71C and passed fine. So you think I'm hitting a wall?
I got mine 1250 mhz core stable at 1.270 V. You can pump an absolute max of 1.3v (try to stay lower) through these cards from what i have read. So keep upping that voltage if you need to.
post #1548 of 4099
Quote:
Originally Posted by raghu78 View Post

HD 7870 at 1.2 Ghz will easily match or exceed HD 7950 at 800 Mhz. But thats a wrong way to look at it. the HD 7870 has lesser OC headrom compared to HD 7950. factory overclocked HD 7950s are available at 950 Mhz which will match a 1250 - 1300 Mhz HD 7870. Once you overclock the HD 7950 to 1150 - 1200 Mhz it will whack the HD 7870 overclocked by 25% or more .
I know that a overclocked 7950 will beat a 7870 that's obvious. Thats for the answer.
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post #1549 of 4099
Has anyone ever removed the heatsink from one of these to reapply with new thermal goo?
Is the process difficult? Was the manufacture paste good quality/decent aplication? Did temps improve?
specificaly the asus dcu, but im curious to hear the input from all brands.
post #1550 of 4099
I'm getting incorrect voltage readings from MSI Afterburner and other GPU-tweaking software. I've found out that my REAL default voltage is the normal 1.218 V and not 1.118 as is being picked up. If i hit default on Sapphire TriXX, it picks up the 1.219V, but after restarting it reverts to 1.118. GPU Shark and Speedfan tell me the correct voltage the whole time. Running 12.8 drivers, which I've done a clean reinstall of, which doesn't fix the issue.
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