7950: 2048 Shaders

[gpse]

Hey guys, I have a reference AMD HD 7950, from what I have researched the HD 7950 has:
Shaders: 1792
Texture Units: 112

in GPU-Z mine shows:
Shaders: 2048
Texture Units: 128

Is there a bug in GPU-Z, or do I have a "special" 7950? The card I have also has 6pin + 8pin for power.

 

[Shmee]

Oooh, interesting. I know some MSI twin frozr cards had the 6+8pin and 7970 PCB, but supposedly they still DID NOT unlock shaders. I am not sure, what brand is it? Just AMD? Where did you get it?

 

[Arkadrel]

Is there a bug in GPU-Z, or do I have a "special" 7950? The card I have also has 6pin + 8pin for power.

They probably just sent you a 7970 by mistake or something weird.
Does it say 7950 on the box? count your blessing if its actually a 7970.

Finding out it is a bug in GPU-Z would be kinda a bummer.

 

[Skurge]

Do some benchmark. Heaven or 3Dmark so we can see if it does better than a stock 7950

 

[notty22]

Those are 7950 clocks, the bios must be able to recognize the whole gpu if it's not lasered off. Which appears to be the case?

 

[gpse]

I actually got the card from a friend of a friend who works at AMD, so it just came in a sealed anti-static bag. On the back of the card there is a sticker that says 7950. I thought it was weird or a bug for sure, because the sticker says 7950, and the clocks are 7950, but it has the shaders and texture units of a 7970. Perhaps this was some sort of "engineering sample" type card, who knows!

However my issue\concern is that I'm using this in a Mac Pro 2009, which is very picky with cards that use more than 225Watts. So if this is a 7970 is disguise I'm scared I will fry the mobo\PSU, because the 7970 uses quite a bit more power than the 7950. Currently I'm using a 6 to 8 pin adapter to power the card.

 

[hokies83]

LoL well if all fails and it is a Ref 7950 PCB ill take it off yer hands lols.

 

[Smoblikat]

I actually got the card from a friend of a friend who works at AMD, so it just came in a sealed anti-static bag. On the back of the card there is a sticker that says 7950. I thought it was weird or a bug for sure, because the sticker says 7950, and the clocks are 7950, but it has the shaders and texture units of a 7970. Perhaps this was some sort of "engineering sample" type card, who knows!

However my issue\concern is that I'm using this in a Mac Pro 2009, which is very picky with cards that use more than 225Watts. So if this is a 7970 is disguise I'm scared I will fry the mobo\PSU, because the 7970 uses quite a bit more power than the 7950. Currently I'm using a 6 to 8 pin adapter to power the card.

Ill trade you an HD6970

 

[gpse]

LOL, hopefully I have no issues, I just flashed the 7950 Boost BIOS since according to this article it has a TDP of 225watts, so I should be safe.
http://www.anandtech.com/show/6152/amd-announces-new-radeon-hd-7950-with-boost

 

[notty22]

LOL, hopefully I have no issues, I just flashed the 7950 Boost BIOS since according to this article it has a TDP of 225watts, so I should be safe.
http://www.anandtech.com/show/6152/amd-announces-new-radeon-hd-7950-with-boost

You might be safer with that stock bios. Using 800 core clock and , 1250 memory clocks, (what's shown in that gpu-z) that is definitely gonna pull less power than a boost bios.

Most boost bios's , up the voltage to 1.25 and clocks to 850-925.
http://www.anandtech.com/show/6152/amd-announces-new-radeon-hd-7950-with-boost

You have increased your card's power draw.

 

[Shmee]

I wouldn't change the bios, we aren't even sure what it is. I would just OC manually if possible with MSI AB or CCC. If you even want to OC that is.

 

[futurefields]

Could underclock it to 650 mhz or so

 

[Shmee]

Or, get a new PSU.

 

[zaydq]

Alot of 7950s say that on gpu-z. Mine included. It has been attempted to unlock those shaders, but to no avail. I wouldn't get your hopes up because its a common error.

Also, a 7950's chip is a 7970 chip with the shaders disabled, probably didn't quite make the cut. Sorry to kill off your hopes

 

[gpse]

Alot of 7950s say that on gpu-z. Mine included. It has been attempted to unlock those shaders, but to no avail. I wouldn't get your hopes up because its a common error.

Also, a 7950's chip is a 7970 chip with the shaders disabled, probably didn't quite make the cut. Sorry to kill off your hopes

darn, oh well performance of this card has been great, much better than the HD 4870 it replaced.
I'll flash the original BIOS back, since I can't have this thing drawing too much power.