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SLI same series?

paradisiac

paradisiac

paradisiac

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am I right in thinking they have to be the same series to sli :
GTX4** + GTX4**
GTX5** + GTX5**

I could SLI a GTX460 + GTX560?

im 99% confident it cant be done, but if I don't ask and im wrong, then could regret it.
 
You do have to be quite careful with your choice of cards.

You can't, for example:

  • SLI a GTX 460 1GB V1 with a GTX 460 1GB V2
  • SLI a GTX 460 768MB with a GTX 460 1GB
  • SLI any combination of the GTX 560, GTX 560 Ti and GTX 560 Ti 448, other than with another of the same
Apparently you can SLI otherwise identical GPU's with different amounts of VRAM using Coolbits, such as a 1GB and a 2GB GTX 560 Ti, but you'll only be ables to use an amount of VRAM equal to the lowest amount.

You need cards with identical GPU's and ideally the same amount of VRAM.
 
Surveyor said:
You do have to be quite careful with your choice of cards.

You can't, for example:

  • SLI a GTX 460 1GB V1 with a GTX 460 1GB V2
  • SLI a GTX 460 768MB with a GTX 460 1GB
  • SLI any combination of the GTX 560, GTX 560 Ti and GTX 560 Ti 448, other than with another of the same
Apparently you can SLI otherwise identical GPU's with different amounts of VRAM using Coolbits, such as a 1GB and a 2GB GTX 560 Ti, but you'll only be ables to use an amount of VRAM equal to the lowest amount.

You need cards with identical GPU's and ideally the same amount of VRAM.
Click to expand...

that sounds like something you need to do in one purchase and buy 2 identical cards, not something as an after thought.
I have recently got my GTX460 swapped out for a GTX560 (the supplier had no GTX460s in stock :) ) but I got a call from them saying that they cannot replicate my fault, so are considering if they deem it acceptable to give my money back or return my GTX460. I explained that they had already sent me my GTX560 and I have it in my pc now so do I have to return it, to which she replied 'No, that is yours'. it puzzled me, but I wasn't prepared to argue.
 
paradisiac said:
that sounds like something you need to do in one purchase and buy 2 identical cards, not something as an after thought.
I have recently got my GTX460 swapped out for a GTX560 (the supplier had no GTX460s in stock :) ) but I got a call from them saying that they cannot replicate my fault, so are considering if they deem it acceptable to give my money back or return my GTX460. I explained that they had already sent me my GTX560 and I have it in my pc now so do I have to return it, to which she replied 'No, that is yours'. it puzzled me, but I wasn't prepared to argue.
Click to expand...

A free GTX 560.

You can't argue with that :)

Ask them for your money back, then you can put it towards another GTX 560 if you consider it worthwhile.

Or sell the card you have, and with that and what you get refunded, get a single higher end card.
 
Last edited:
Some of the vram issues can be gotten around using coolbits.

I know it works on 8800 GTS with different vram sizes because I did it myself. Not sure on 460s though.
 
Surveyor said:
A free GTX 560.

You can't argue with that :)

Ask them for your money back, then you can put it towards another GTX 560 if you consider it worthwhile.
Click to expand...

I don't get a choice, because they couldn't replicate the fault, they have to pass it on to someone higher, so awaiting decision.

yeh was kinda shocked she didn't seem to care I had already been issued a card.
 
ALXAndy said:
Some of the vram issues can be gotten around using coolbits.

I know it works on 8800 GTS with different vram sizes because I did it myself. Not sure on 460s though.
Click to expand...

Used to be able to do it with any G9x based card - could flash a custom BIOS to make for example a 8800GS (some models) work with a 8800GT. Not very useful as due to the difference in specification it seemed to induce microstutter quite often which wasn't there with an actual 8800GT SLI setup.
 
ALXAndy said:
Some of the vram issues can be gotten around using coolbits.

I know it works on 8800 GTS with different vram sizes because I did it myself. Not sure on 460s though.
Click to expand...

Just going by what I've read on this forum Coolbits allows identical GPU's with different amounts of VRAM to be used together at the sacrifice of an amount of VRAM from the card with the higher amount.

I don't believe it works for the 768MB and 1GB GTX 460 because they're essentially different GPU's having a different amount of ROPs and a different memory interface.

It's for the same reason you can't SLI V1 and V2 1GB GTX 460's.
 
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