Unlocking hidden pipelines in GeForce 8600M GS

Hi. I bought a new Acer laptop and I would get a better performance from my current graphics card( unlock 8 hidden pipelines and texturing units). Then the performance should be wery near of the from the 8700M GT(so the theory). Has anyone an idea how to make it done?I have Acer Aspire 7520G. System properties:AMD Turion X2 TL58 Dual Core (2x 1.9Ghz), 17" CrystalBrite WXGA+, 2048MB, 320GB, GeForce 8600M-GS 1280MB TurboCache™,

 

I don't think that is possible as I am pretty sure the 8600 gs uses the same graphics chip as the 8400 gt, not the 8600 gt (so there isn't any disabled pipelines)

 

So... are you saying the 8600M GT can be unlocked ?

 

well as far as I know neither can be unlocked as they use different cores and neither has any pipelines disabled.

 

Yes... That was my understanding as well.

It was just your wording that confused me.

 

it makes u wonder why they would lock them in the first place. wouldnt that just be more work rather than releasing only one kind of chipset?

 

Usually because they don't work properly. So instead of throwing the entire chip away, they sell it as a cheaper product with some pipelines disabled.

And sometimes, they do it with working pipelines too, simply because it makes them more money. Lets say 20% are willing to pay for a high-end card. Another 50% will pay for a mid-range, and the last 30% just want the cheapest possible.

Disregarding what I said before, about some chips just being unable to work with everything enabled, they might still end up with too many high-end chips. (Since only 20% are willing to pay these insane prices).
So what do they do? Throw them out? Lower prices across the board?
Both would be silly. Why lower prices for the 20% who are actually willing to pay the regular high price?

Instead, they just take some of the working high-end chips, disable some pipelines, and sell them cheaper. Then they can still get away with charging full price to the people who are willing to pay that, while still getting the remaining chips sold.

Generally, the reason is a mix of these two. There are always defective chips, and when possible, they're sold as a cheaper chip (with bits disabled). And sometimes, they artificially cripple chips just to better cope with market demand.

 

This is incorrect. The 8600M-GS, 8600M-GT, and 8700M-GT all use the G84 core. The 8400M-GT, 8400M-GS, and 8400M-G use the G86 core. As for the disabled processors, what Jalf said is correct.

 

can sumbody tell me how turbocache works??
cuz i have a 8600M GS and i have 2 gb of corsair memory and i only gettin 512 memory for my graph card

 

http://en.wikipedia.org/wiki/Turbocache

The 8600m GS won't be able to utilize more than 512 Mb of RAM anyways.

 

but how do i get the 1 gb to video mem?

 

I'm not sure what you're asking. You don't have to do anything, if the GPU needs more RAM, it will share more RAM, up to it's max. 512mb may be it's max on a 2GB system RAM setup, I'm not sure.

 

ok according to the wikipedia link the 8600M gs dont use turbocache

 

No, the 8600M-GS should support up to 1GB turbo cache, IIRC.

 

be advised that turbocashe will TREMENDOUSLY decrease performance. I would lower the texture quality than use turbocashe. but i have 256mb so thats good enough for most games.

 

Turbocache cannot "lower" performance. It's questionable whether it helps or not, but at least on the 8600M cards it appears to help quite a bit.

 

I'm pretty sure revoletion is referring to the fact that Turbocache memory is slower than the RAM built into the graphics card (which is true). But RAM is really a trick that the companies use to tout their cards. The true preformance indicator is clock speed.

 

Maybe he's referring to a 1GB set up. If you give the GPU 1GB of RAM (256MB onboard + 756MB system RAM), then you're stuck with 256MB of system RAM and then your system will slow down so horribly that you'd think you're lagging in real life .

That said... I don't think Turbocache is a 1:1 ratio (At least not on my desktop X200 IGP--granted, they call it "hyper memory" or some other such nonsense)... Sharing 128MB of system RAM gives the IGP 256MB of VRAM, yet sharing 32MB gives it 128MB VRAM... Odd, but I couldn't care less).

No... The true indicator of performance is a combination of Clock, VRAM bandwidth (128bit, 256bit, etc), and Drivers. Oh, not to mention the VRAM amount itself. But the law of diminishing return is in full effect here.

Bad drivers can turn your unstoppable pwnage GPU into a little harmless kitty.