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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1497

post #14961 of 38704
I did a little investigatting and I have found out that my Asus HD7950 DC@ TOP uses reference PCB..

So I decided to flah this new BOOST BIOS from AMD..

All I can say WOW!!! biggrin.gif

This BIOS is awesome!!! thumb.gif

First my card with original BIOS could not go over 1050MHz on the core because adding Voltage over 1.062V would pretty much crash the card.

I have found out by watching in GPU-Z that now w/ AMD BOOST BIOS my card has less Vdroop than on original BIOS..
Before on Asus BIOS when I set for example 1.062V in MSI AB VDDC on VRMs would be ~ 1.01V UNDER LOAD.

Now with AMD BOOST BIOS with the same 1.062V set in MSI AB my VDDC reads 1.04V UNDER LOAD..

That might be a reason of bad Voltage/OC skaling before on Asus BIOS..

Also now GPU temp is bit higher due VRMs supplying more Voltage to GPU (1.04V vs 1.01V before with manual Vcore @ 1.062V in MSI AB)

Before w/ 1.062V my max OC was 1050/1575MHz and now with AMD BOOST BIOS it flys trough games/3DMark 11 @ 1100/1575MHz .. thumb.gif



CHEERS..
Edited by KingT - 8/24/12 at 10:07am
     
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post #14962 of 38704
Welp, I'm becoming rather disillusioned with my open box Sapphire 7970. I loved my 7870 (HIS IceQ X) up until I sold it with my old rig, and thought a 7970 would be even better. But for the price difference and power consumption (and heat/noise), I'm not seeing a great performance boost vs. my GTX 670 that's on my main computer. The 7970 is for a family member who, among other games, still plays a fair amount of WoW, and when I tested GTX 670 in his computer, the difference in FPS was huge (like up to 250 fps in some areas with GTX 670, and only 130-150 fps with the 7970 in the same area). I know nVidia has a strong WoW monopoly, but I had no idea it was that strong! In any case, it's the noise, temperatures, and power consumption that's bogging me down. It's using ~40 watts more in less demanding games like WoW and D3, and 180+ Watts more in Furmark Burn-in Test / OCCT GPU test for slightly better performance (and in case of WoW - worse)! (settings are stock volts, +20% power target, ~1100MHz GPU Clock / 1575MHz memory clock). Fan speed has to stay below 50% to avoid a tonal fan sound (okay, that's manufacturer/design specific), which is not happening in games.

I was going to try an ASUS DirectCu II version, since my GTX 670 of the same design is doing extremely well in terms of temperatures and noise, but now I wonder if I should scrap the whole 7970 idea and opt for cooler / lower power consumption cards.

P.S.: I finally found Lucid Virtu MVP's merit with this card - it boosts performance and smoothness significantly in some games (and Heaven 3.0). Did not notice it so much before with GTX 670 and HD 7870, curiously enough. Helps with temperatures and power consumption too. Too bad my family member's using a Z68 motherboard, so I can only use the MVP version on a trial basis.
Edited by ElevenEleven - 8/24/12 at 10:20am
   
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post #14963 of 38704
Hi - In an earlier post there was a request to see Heaven 3.0 results with a 7970 crossfired with a 7950, I have that setup with my AMD rig, so I posted the result:


Since I have two 7970's crossfired in my Intel rig, I thought it would be good to post the result from that system to give a comparison:


Note: One difference is that Anisotropy was set to 16X on the Intel test, but was at 4X on the AMD test. (and of course the obvious difference in CPU)
Edited by vonalka - 8/24/12 at 10:38am
post #14964 of 38704
Should i flash my visiontek 7970 woth boost bios? Or does it not make a difference
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post #14965 of 38704
Quote:
Originally Posted by 4LC4PON3 View Post

Should i flash my visiontek 7970 woth boost bios? Or does it not make a difference

I was wondering the same thing with my Gigabyte 7970 Windforce. How much of a difference does that make on card abilities?
post #14966 of 38704
Quote:
Originally Posted by 4LC4PON3 View Post

Should i flash my visiontek 7970 woth boost bios? Or does it not make a difference

Do not flash the BIOS. just overclock manually in AMD CCC to 1050 Mhz core and 1500 Mhz memory. thats enough. max out your power option to +20%. If things are stable in fact you could go for 1100 Mhz . Make sure temps are under 75c and the card runs stable . test using BF3 and Heaven for stability. the Ghz BIOS increases voltage and so your temps will also increase. Just stick to your current BIOS and overclock with stock voltage .
Edited by raghu78 - 8/24/12 at 11:43am
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post #14967 of 38704
Quote:
Originally Posted by TheRaven View Post

Quote:
Originally Posted by 4LC4PON3 View Post

Should i flash my visiontek 7970 woth boost bios? Or does it not make a difference

I was wondering the same thing with my Gigabyte 7970 Windforce. How much of a difference does that make on card abilities?

no difference. it's a waste of time. it's a marketing move to make a dent in the awful perception of the 7950/7970 in professional reviews next to the gtx600's that boost out of the building at "stock" speeds.
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post #14968 of 38704
Ok thx guys
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post #14969 of 38704
Quote:
Originally Posted by PureBlackFire View Post

Quote:
Originally Posted by TheRaven View Post

Quote:
Originally Posted by 4LC4PON3 View Post

Should i flash my visiontek 7970 woth boost bios? Or does it not make a difference

I was wondering the same thing with my Gigabyte 7970 Windforce. How much of a difference does that make on card abilities?

no difference. it's a waste of time. it's a marketing move to make a dent in the awful perception of the 7950/7970 in professional reviews next to the gtx600's that boost out of the building at "stock" speeds.

Don't say its "not a difference". That's untrue. For some people, their card overclocks higher. For some the limits are the same, and for a small percentage, it doesn't work at all.

My card used to max at 1175 / 1600 on the stock reference cooler. With the GHz Edition BIOS, I was able to get 1200 / 1800 out of it rock solid on the reference cooler.
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post #14970 of 38704
Quote:
Originally Posted by pioneerisloud View Post


Don't say its "not a difference". That's untrue. For some people, their card overclocks higher. For some the limits are the same, and for a small percentage, it doesn't work at all.

My card used to max at 1175 / 1600 on the stock reference cooler. With the GHz Edition BIOS, I was able to get 1200 / 1800 out of it rock solid on the reference cooler.

I stand corrected.
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