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2500M -> 7950GTX possible?

post #1 of 12
4/18/07 at 7:17pm
Thread Starter 
Well, I know it's possible to have my 2500M flashed to the 7900GTX. However, I was wondering if I could flash it to the 7950GTX. If possible, would I get the same performance as native 7950GTX since people are saying that the only difference between the cards are clock speeds?!

Also, I have 4GB of RAM, should I use the "memory optimized" option when flashing or not? Why/why not?

Thanks in advance...
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post #2 of 12
4/19/07 at 12:10pm
Thread Starter 
Cmon guys... someone please reply. I want some feedback before blowing my laptop up.
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post #3 of 12
4/19/07 at 12:27pm
Quote:
Originally Posted by .PoNeH
Cmon guys... someone please reply. I want some feedback before blowing my laptop up.
Uhmm, why? The 2500M is identical, performance-wise, to the 7900GTX, so why would you want to flash it? Also, I believe the "unlocked video BIOS" thread (sticky) has an unlocked BIOS for the 2500M, which should allow you to overclock it to your heart's desire.
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post #4 of 12
4/19/07 at 12:38pm
Thread Starter 
I know that the 2500 is identical to the 7900GTX, but unfortunately the drivers aren't realeased for it nearly as often. I have been using LV2Go's and X-treme G's without a problem, but folks told me I could get slightly better performance from the 7900GTX.

So I was wondering if having it flashed to the 7950GTX would yield even better performance. Hence my question of whether it is possible or not.

I have my 2500M unlocked already, I was just wondering if I should use the "memory optimized" BIOS with my 4GB of RAM or not. I hear it can conflict when overclocking.
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post #5 of 12
4/19/07 at 12:47pm
Quote:
Originally Posted by .PoNeH
I know that the 2500 is identical to the 7900GTX, but unfortunately the drivers aren't realeased for it nearly as often. I have been using LV2Go's and X-treme G's without a problem, but folks told me I could get slightly better performance from the 7900GTX.

They are full of it, the FX2500 is the EXACT SAME CHIP with a different BIOS is all. Using 3rd party drivers does alleviate infrequent updates. (Mind you though 90% of Quadro users are developers and not gamers, stability is more important to them than the few extra FPS a driver update might deliver)

Quote:
So I was wondering if having it flashed to the 7950GTX would yield even better performance. Hence my question of whether it is possible or not.

No, you won't see any performance gain worth the effort. Your synthetic benchmark scores might go up a few points but you won't see any real world difference.
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post #6 of 12
4/19/07 at 1:08pm
Thread Starter 
Hmmm, that sucks. I guess I was just asking because I have been getting some weird performance with some games. I feel like my laptop isn't performing as well as it should. I get really low performance playing HL1 mods and better performance playing later games, etc. I don't understand why that would be the case.
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post #7 of 12
4/19/07 at 3:25pm
what are your current 3Dmark05/06 scores right now?
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post #8 of 12
4/19/07 at 3:36pm
Thread Starter 
I am getting about 8200s in 3dMark05. Which doesn't seem that far off from what others are getting. But my gaming experiences doesn't seem to be on par with others. Also, I can't seem to be able to overclock my video card. Whenever I increase the clock speeds, even if slightly, my 3dMark05 drops significantly. I don't understand what the problem is.
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post #9 of 12
4/19/07 at 10:54pm
Are you running Halflife 1 in D3D or Open GL? If memory serves me correctly the OpenGL renderer has better performance than the Direct 3D one.
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post #10 of 12
4/19/07 at 11:27pm
You should be getting around 4700 to 4780 in 3DMark06 depending on your CPU speed.

The 7950 can be clocked somewhat higher than the 7900GTX/2500M but Dell does not clock it much higher. But, if you use OpenGL, the 2500M and 3500M are better performing and have better quality (eg antialiased wireframes and gamma-corrected antialiasing). The DirectX performance is about the same, within 2% of what a 7900gtx would get, for the 2500M. Which makes sense as its the same core.

I have heard that flashing a 2500M to 7950 or 3500 will get you a black screen, so urge caution there.
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post #11 of 12
4/20/07 at 3:26am
7950GTX and 3500M have higher Memory voltages.

the 7900gtx and 2500m won't be able to run those voltages. Best way is just to overclock the frequencies.
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post #12 of 12
4/20/07 at 3:48pm
Quote:
Originally Posted by Spinitch
7950GTX and 3500M have higher Memory voltages.

Interesting, didn't know that. Care to elaborate? I know the 2500M (and 7900GTX) have two voltages, 1V and 1.24V, but whether that is applied to the core or the memory I don't know.
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