Sapphire HD6950 1GB - Temperatures and Overclocking

[Jaskanwar Singh]

Guys i decided to overclock my card to 6970 clocks (880mhz).

I used MSI Afterburner to monitor and Sapphire Trixx to oc. Stress test used was from TPU - GPUtool.

I used 10mhz increments and set fan profile to 80% fixed. Ran test for 1 min after each increment.

When i reached 880mhz the test ran. Screen went blank and recovered. Amd driver stopped and recovered. The test still ran but screen hanged. Temp was avg 75C and load 97-99%. Used task manager to close test.

After that i ran black ops at highest settings and played it for 1hr. Totally stable and temp was avg 66c. Fan profile 80%.

I didnt touch memory and voltage still and still have to measure fps increase.

Was so engrossed in game that i got late for tutions.

Screens and fps tomorrow.

Comment on this oc.
With profile at 100% what can i expect?

[Geek-With-Lens]

That I Don't know But if you have guts then overclock this card beyond 1 ghz. MSI Twin Frozr Can.

[Jaskanwar Singh]

^check out overclock3d review. TFII could only reach 895mhz on stock volts. Each card is not same.
And i wont touch voltage atleast now. No need.

[Geek-With-Lens]

N560GTX-Ti Twin Frozr II/OC Overclocking | bit-tech.net

Man You've to refresh your knowledge Bit-tech guys has overclocked it to 975mhz without overvolting & with overvolting 1020mhz.

MSI N560GTX Ti Twin Frozer II review

974mhz without overvolting.

Wastage of money on sapphire 6950 1gb.

[Skud]

Yeah, you buy a graphics card for OCing, LOL.

@Jas, what's the current temps of Amritsar? And your temps are with AC on or normal?

[Jaskanwar Singh]

That I Don't know But if you have guts then overclock this card beyond 1 ghz. MSI Twin Frozr Can.

N560GTX-Ti Twin Frozr II/OC Overclocking | bit-tech.net

Man You've to refresh your knowledge Bit-tech guys has overclocked it to 975mhz without overvolting & with overvolting 1020mhz.

MSI N560GTX Ti Twin Frozer II review

974mhz without overvolting.

Wastage of money on sapphire 6950 1gb.

1.be specific which tf2 u were talking.
2.g3d oced 6950 one to 987 without overvolting and oc3d to 895.
3.Check out g3d forums and u will find 560 ti tf2 at 920-930. Do remember its already at 880.

And if u want to argue on that topic then i will pm u tomorrow stating my proofs. Now go on - topic.

[Skud]

Check this also:-

Graphics Cards related queries here.

I will post my results later.

[Jaskanwar Singh]

@Jas, what's the current temps of Amritsar? And your temps are with AC on or normal?

its around 35. the temps are without AC.

[Skud]

I am getting same temp figures as you in stock clocks. Waiting for yours pics. That's most important.

[Geek-With-Lens]

N560 Ti Twin Frozr II will be lot cooler than sapphire 6950 at any clock.

[Skud]

Does it matter as long as your card doesn't overheat or show sign of problems?

Off-topic: Have you decided about the cabinet?

[Geek-With-Lens]

Off-topic: Have you decided about the cabinet?

All Three are good but lian li pc-k62 i've decided if not available cm 690 ii advanced or tempest evo.

[Skud]

I am losing my novelty value because of you guys.

OK, no more OT.

Jas, give some more results.

[vickybat]

Comment on this oc.
With profile at 100% what can i expect?

At 80% fan speed all the time, you'll damage them in the long run. Fans will make whirring noise and eventually stop working. Its not at all advised to run them at 80% fixed all the time.

Fan longevity will come crashing down. Don't even think of keeping them at 100% all the time.

Download radeon pro and use fan settings from there.

[Skud]

Are you sure about this? If I am not mistaken previously in AGP era fans generally used to run at full pelt. Those cards serve years. This fan speed control thing is relatively new.

[Jaskanwar Singh]

At 80% fan speed all the time, you'll damage them in the long run. Fans will make whirring noise and eventually stop working. Its not at all advised to run them at 80% fixed all the time.

Fan longevity will come crashing down. Don't even think of keeping them at 100% all the time.

Download radeon pro and use fan settings from there.

ok. i will change them to automatic.
and will download radeon pro.

and which softwares to benchmark.

dirt3 has inbuilt one too. skud you want it?

Are you sure about this? If I am not mistaken previously in AGP era fans generally used to run at full pelt. Those cards serve years. This fan speed control thing is relatively new.

then time to research on it.

5870 fan @100 % = damage? - [H]ard|Forum

[Solved] Adjusting Graphics Card Fan Speed - Graphics-Cards - Graphic-Displays

they say by the time fan stops working, we would have upgraded to new card.

[Skud]

Yeah, Dirt3 bench please and vantage, if possible.

Plus 3dmark11, heaven, avp, re5, metro 2033, crysis2. This should suffice.

[vickybat]

@ jaskanwar singh

hmm go for 3d mark vantage. The latest crysis 2 dx 11 benchmark is also very nice.
Don't use msi kombuster ever. You can try furmark too. Try unigine heaven as well and see how good 6950 is in tess. Crysis 2 will be a practical benchmark for tess.
But best way is to try at some real stressful titles like metro 2033, crysis 2 with dx11 , high res textures and everything set to ultra. Dirt 3 is also a good dx11 benchmark.

About fans , they will indeed go kaput at those settings no matter what people say.

[Skud]

Regarding fan speed at least during winter we can keep it at default levels. I guess like Patna, Amritsar also gets very cold.

[asingh]

Jaskanwar, you should mention the FPS differentials you are getting. Stock vs. OC. At least 3-4 games.

[vickybat]

Regarding fan speed at least during winter we can keep it at default levels. I guess like Patna, Amritsar also gets very cold.

Even in summer you can use default. Max 60% or at best 70% under heavy overclock but not for prolonged usage. Not at all recommended using at 80% or beyond.

[Jaskanwar Singh]

Yeah, Dirt3 bench please and vantage, if possible.

Plus 3dmark11, heaven, avp, re5, metro 2033, crysis2. This should suffice.

ok. i dont have avp and metro though.

Regarding fan speed at least during winter we can keep it at default levels. I guess like Patna, Amritsar also gets very cold.

yeah.

Jaskanwar, you should mention the FPS differentials you are getting. Stock vs. OC. At least 3-4 games.

ok. tomorrow i will put them.

[asingh]

Even Crysis 2, and any of the latest COD series.

[SlashDK]

@Everyone
Umm... I know that this may sound a nooby question but why do you guys over clock such high end PC's? Faster proessors = better for productivity but what about graphics? With the exceptions of a few games such as Crysis2 DX11, Metro2033 etc. and compute what difference does it make? I am personally running my Athlon ii x4 635 under clocked and undervolted and my HD 6850 is underclocked too. Sorry if this sounds amateurish but please clarify.

[Skud]

ok. i dont have avp and metro though.



yeah.



ok. tomorrow i will put them.

You can download the RE5 and AVP benchmark tool from net. No need for full games.

@Everyone
Umm... I know that this may sound a nooby question but why do you guys over clock such high end PC's? Faster proessors = better for productivity but what about graphics? With the exceptions of a few games such as Crysis2 DX11, Metro2033 etc. and compute what difference does it make? I am personally running my Athlon ii x4 635 under clocked and undervolted and my HD 6850 is underclocked too. Sorry if this sounds amateurish but please clarify.

FUN!!! Also it gives an idea how far you can stretch your hardware.

[mukherjee]

N560GTX-Ti Twin Frozr II/OC Overclocking | bit-tech.net

Man You've to refresh your knowledge Bit-tech guys has overclocked it to 975mhz without overvolting & with overvolting 1020mhz.

MSI N560GTX Ti Twin Frozer II review

974mhz without overvolting.

Wastage of money on sapphire 6950 1gb.

Refrain from personal attacks.

[Skud]

I guess the Sapphire card is not minding at all.

[Jaskanwar Singh]

Even Crysis 2, and any of the latest COD series.

asingh what are temps of your oced 4890s? and have you fixed fan profile to a value?

[rchi84]

Hi Jas

Nice OC. but don't know why you didn't use afterburner to OC as it allows you to OC, monitor temps and adjust fan profiles all at once Once you enable unofficial overclocking, it allows you to up the GPU voltage too, if you need it.

What are the stock volts on the Sapphire? If it's like mine (around 1100 mv), then you should be able to get it to 850/1300 atleast, without any problems.

Memory OCing is not really needed, imho, as it only gives you a small boost. So you can keep the memory at 1250.

Kombustor is Furmark with MSI branding, so don't know why it gets a negative. The only thing is that both Nvidia and AMD throttle the GPU when they detect you're running Furmark/Kombustor.

Try OCCT. It's a very good test to check for memory artifacts. Run it on complexity 8, at 1080 fullscreen. It's usually very good at letting you know when Memory OC is unstable, as it overwhelms the DDR5 memory error correction.

Based on personal experience, Metro 2033, Crysis 2, Witcher 2 and Assasin's creed brotherhood (surprisingly punishing on my card at 1080 with 8xAA, esp when you sync with viewpoints) would be good indicators of stability.

If you can play crysis 2 for fifteen minutes, without getting a "AMD Driver has stopped responding" message, your OC is stable.

Play with the afterburner fan profile, which is very useful, but remember to close the Powertune window in catalyst, which doesn't work when afterburner is running, anyway.

[vickybat]

^^ I think there should be a general ratio between core clocks and memory clocks. Simply because when you increase the core clocks without significantly increasing the memory clocks, the gpu performs faster operations per clock but when tries to fetch from the memory, gets slower due to lesser clock rates.

So it renders faster but fetches data relatively slower and in the end, you don't see a significant overall performance increase.

So i think, if you increase the core clocks to lets say 10mhz, memory clocks should also be incremented by the same value so that the overall ratio is maintained.

This is completely my thinking but i could be wrong here.