[H] users 7950 Overclock Results

Ah, I wasn't doing that. Thanks. I'll try again.

I am getting sustained 80-120 FPS in BL2 tho.
 
Borderlands 2 (played for over 3 hours) went well. 80-120 FPS, heat never went above 68C with fan never going higher than 50%. And this is with the sides off (and 1 or 2 case fans not plugged in).

I think I'm going to hook the rest of it up, and run Heaven with extreme tesselation and then maybe up it a bit more.
 
Fans hooked up, all settings on Heaven turned on, and here we go:

Heh. On Extreme tesselization I get a bit over 1100. ;)
 
3dmark11scorefast2550ram.jpg



http://www.3dmark.com/3dm11/4961314
 
raghu78 said:
What clocks are you currently at on the HD 7950. also can you bench at extreme settings and post scores.
Click to expand...


That run was at 1320/1600 @1.25v settings.

I have the freebie version of 3dMark11 so my benchmarks are limited to performance runs.
 


This is at 1150/1600 at 1.25v on a sapphire hd7950

Is this similar to what others are getting? I am only using my i3-2100 at stock.

Updating rig sig
 
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This is the second 7950 i had, the first one was a Sapphire 7950 Ghz edition not the Vapor-X, the card was faulty, problematic and they changed it to the card that i wanned The Vapor-X 7950 OC Boost

Benchmark & Overclock:

From 950/1200 Mhz to 1100/1375 Mhz, without changing the voltage(is it good?)
Max temp 65 with speed fan at 56%, Vram temp max 68

Asic quality 88.9%

http://tinypic.com/view.php?pic=25pn8mr&s=6
 
Moisemark said:
This is the second 7950 i had, the first one was a Sapphire 7950 Ghz edition not the Vapor-X, the card was faulty, problematic and they changed it to the card that i wanned The Vapor-X 7950 OC Boost

Benchmark & Overclock:

From 950/1200 Mhz to 1100/1375 Mhz, without changing the voltage(is it good?)
Max temp 65 with speed fan at 56%, Vram temp max 68

Asic quality 88.9%

http://tinypic.com/view.php?pic=25pn8mr&s=6
Click to expand...


1100 Mhz at stock voltage . temps at 65c. thats very good. your performance would be on par with HD 7970 Ghz. is voltage unlocked on the card ? if it is then push for 1150 - 1200 Mhz . try to keep core temps below 70c and VRM temps below 90c. :)
 
Here's my Heaven Benchmarks
file:///F:/Text%20Files/unigine_20121125_2149.html

1200/1800 at 1.180
Max temps
gpu 73c
vrm1 84c
vrm2 65c
fan 100%

Going to working on getting voltage down this is a good overclock on air.
Card will do more but will start to artifact over 1250 core, voltage at any setting.
Will a water block allow me to go higher with out the artifact or is that my cards max?
 
Ok, how do i know if i have the voltage unlocked? if not? what can i do? i would wanna get 1200/.... i dont know what Memor Mhz, or voltage, what do guys recommend? let it at 1100/1375 or go higher?
 
Graphic card model: SAPPHIRE HD 7950 OC 3GB GDDR5 950 MHz Edition
Processor: i5 2500k

GPU-Z and CPU-Z screenshots:

BTdvA.png


TriXX settings:

GPU clock: 1215 Mhz
Memory Clock: 1490 Mhz
Board Power Li: +20
VDDC: 1.181v

Unigine Heaven 3.0 DX11 results:

pXtmU.png
 
What programs are you guys using to do the overclocking? I have a Sapphire HD7950 Dual-X Boost Edition, and I cannot get the voltage settings to work properly.. When the card runs at the default 850mhz, it uses my voltage setting, but when it jumps up to the "boost clocks" (925mhz by default), it goes to its default voltage of 1.168v, and I can't find any way of changing that, other than using "force constant voltage" in Afterburner, which makes it run at full voltage all the time, even at idle. Not the most ideal solution..

Would it be possible to flash a regular BIOS, without Boost?
 
Taken long ago, from a forum far, far away. . .


1. Click on "settings" in the bottom right corner after MSI Afterburner is started up. ( It's not hard to find.)

2. After clicking on "Settings" go down to "Safety properties" and select "Unlock Voltage Control" and "Unlock Voltage Monitoring".

There you go!!! I also recommend changing the fan control option to manual while in the settings menu. Might as well have the fan on full blast while attempting a voltage OC, mainly for safety precautions.
Click to expand...

And to enable higher voltages:

https://bitcointalk.org/index.php?topic=18102.0
 
SonDa5 said:
TRIXX 4.4.0b-MOD Smooth like butter.


Time for some 5GHZ Delidded 3770k benchmarking. First time I have ever ran 3dMark11 in Xtreme Mode
Xscore3dMark11.jpg


http://www.3dmark.com/3dm11/5070771
Click to expand...

Nice score man :) im jealous. Wish I could hit 1300+ on my gpu.....shit I was happy with 1200 on extreme air cooling lol.

You need 1 more IMO. My plan is to get 2 more 7950's with the arctic accelero. 3 7950's in tri-fire should easily let me hit 120+ FPS constant.

Either way grats indeed
 
one question. Core voltage set to 1.2v in Afterburner or Trixx (mod version) and Gpu-z shows arround 1.15v. Which one is closer to real ?
 
tommiyacht said:
one question. Core voltage set to 1.2v in Afterburner or Trixx (mod version) and Gpu-z shows arround 1.15v. Which one is closer to real ?
Click to expand...

My volts are proper in GPUz until I start putting a load on the video card.

When I test my card, I have it set to 1.287v for 1200mhz, problem is gpuz shows (when my card is at 99%) 1.223..

So...what im thinking is there really is no way to add any form of LLC to a video card to stop the vdrop from happening....of course im speculating here
 
DASHlT said:
So...what im thinking is there really is no way to add any form of LLC to a video card to stop the vdrop from happening....of course im speculating here
Click to expand...

Sounds about right. When I post voltage settings for any benchmark I use the voltage setting that CPU-Z, HWinfo, GPU-Z ect show under load. Always some type of drop.


Thanks for the compliment on my over clocking.
 
is 1100mhz enough to play top games on full details ? my card is rather far from decent (asic 58%) and when i set 1150 i must bump core voltage arround 1,22v-1,23v (1,18v reading in gpu-z) meanwhile on 1100mhz is running on 1,16v (1,11 reading in gpu-z). In both case temps are ok (below 70c vrm and below 65c gpu in heaven 3.0 couple loops) but dont want to decrease lifetime my card

oh, cant get more than 1450mhz on mems (on stock voltage but dont want to overvoltage it)
 
tommiyacht said:
is 1100mhz enough to play top games on full details ? my card is rather far from decent (asic 58%) and when i set 1150 i must bump core voltage arround 1,22v-1,23v (1,18v reading in gpu-z) meanwhile on 1100mhz is running on 1,16v (1,11 reading in gpu-z). In both case temps are ok (below 70c vrm and below 65c gpu in heaven 3.0 couple loops) but dont want to decrease lifetime my card

oh, cant get more than 1450mhz on mems (on stock voltage but dont want to overvoltage it)
Click to expand...

Should be enough if you are running 1 monitor and a good CPU.
 
Tried OCing my MSI 7950, ASIC 91.6%. Have no interest in anything extreme, just want to be stable at stock voltages. In CCC brought the core to 1000 Mhz, memory to 1575 Mhz. Passed 2+ hours of Heaven without any freezes/crashes/artifacting, temps looked very good in 3dmark11, furmark, occt, etc.

Normally leave the PC on 24/7, wake up one morning and the screen has completely grayed out like something crashed. Reboot and it's fine. Within a couple days, I started noticing hard locks on WoW of all things, even when there's nothing overly crazy happening on screen. Reset clocks to stock in CCC, it's now been fine for 2-3 weeks without a lock/crash/etc.

Would brining the power control slider up to 20% do me any good / stabilize that? I'm not exactly clear on what it does...

Any other ideas? I'm assuming dropping memory to ~1500 mhz would be next?

EDIT: Running i5-2500k @ 4.2Ghz (100% stable since Feb 2012 with a 560ti 448), PSU is a Corsair HX650.
 
Xonim said:
Tried OCing my MSI 7950, ASIC 91.6%. Have no interest in anything extreme, just want to be stable at stock voltages. In CCC brought the core to 1000 Mhz, memory to 1575 Mhz. Passed 2+ hours of Heaven without any freezes/crashes/artifacting, temps looked very good in 3dmark11, furmark, occt, etc.

Normally leave the PC on 24/7, wake up one morning and the screen has completely grayed out like something crashed. Reboot and it's fine. Within a couple days, I started noticing hard locks on WoW of all things, even when there's nothing overly crazy happening on screen. Reset clocks to stock in CCC, it's now been fine for 2-3 weeks without a lock/crash/etc.

Would brining the power control slider up to 20% do me any good / stabilize that? I'm not exactly clear on what it does...

Any other ideas? I'm assuming dropping memory to ~1500 mhz would be next?

EDIT: Running i5-2500k @ 4.2Ghz (100% stable since Feb 2012 with a 560ti 448), PSU is a Corsair HX650.
Click to expand...

simple solution. Up the volts. My girlfriend has one as well. Came at 1031v at 880mhz. I needed to up the volts to around 1125 to get 1000-1050mhz stable.

Memory I had maxed out with no issues.

Up the GPU volts.
 
DASHlT said:
simple solution. Up the volts. My girlfriend has one as well. Came at 1031v at 880mhz. I needed to up the volts to around 1125 to get 1000-1050mhz stable.

Memory I had maxed out with no issues.

Up the GPU volts.
Click to expand...

^^^ This ^^^ ;)
 
My score. Seemed pretty tame on the stock speed, around p7500 score wise.

http://www.3dmark.com/3dm11/5260660

Unsure I'll keep it like that, as I need a new fan controller to get my other 2 case fans moving again. Although when I tested that with just 4 fans I was at ~60c so wasn't too bad.

Plus that is the bottom line sapphire so I am pretty pleased. May have to take it up to 1150 some time.
 
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Working on my new version PCB TFIII 7950, with the help of SonDa5 BIOS unlocking my voltage I have successfully gotten up to 1300mhz on air, but it is too hot and I have to run the fans on 80% to keep VRM from throttling. Running right now 1250/1700 at 1.149v and getting ready to pull the trigger on some water gear so I can push this puppy to its limit. BAD coil whine though, oh well.

i5 3570k at 4.4ghz is holding my Physic score down a lot.

P10210

1920x1200 Max setting Heaven 3.0
heaven1250.jpg
 
Overclocking Gurus - I've a question for you!

I've a Sapphire 7950 and I'm very happy with the card.

I've done some overclocking on this and on stock voltage, with +20 Power Limit, I can go up to 1135 on core and 1590 on memory (stable) with very acceptable temps (less than 70 on GPU core and between 60 and 65 on VRMs) and on the whole seems okay to me.
My 3DMark 11 graphics score are like 10200 on Professional and 3050 on Extreme and still very respectable for stock voltages. Unigine max settings at 1920X1080 is about 51 avg fps.

However, it all seems a bit weird (at least to me) once I increase the voltage. The stock voltage is 1.125V and even taking it upto 1.156V, I cannot get a further 10 MHz increase on the core, i.e. it still is not stable at 1150 core with 30mV increase in voltage (the Mem clock is still at 1590 MHz).

Does this seem odd, I do not want to take the core to 1.2V in order to test this, but it seemed logical to me that with a slight increase in voltage (like 30mV) I could push my core clock a little higher. I do understand that every card is different but just wondering what a generalized consensus is. My ASIC is about 59%.

Also, my understanding is that its not the voltage that kills the components, rather it is the heat that it generates that is the killer.
 
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