SLI Performance

[mrquin27]

Hello guys I have a old Winfast 6800 that gets about 3700 in 3d mark 05 and i have the chance to buy another so my question is how much performance will I see with 2 in SLI would I break 7k?

 

[prozac26]

Don't add another. The 3DMark score will about double, but gaming performance won't improve by much. You'll be better off getting a 7900GT or X1800XT. Or wait for DX10 cards.

 

[PX7800GT]

I have a old Winfast 6800 that gets about 3700 in 3d mark 05

i think he has an AGP system :roll:
anyway , even if you have a SLI ready system, dont pay for another 6800 card , because its a complete waste of cash !!
like prozac26 said , get a single 7900GT or X1800XT !! :twisted:

 

[waylander]

Guys, it really depends on how much he is going to pay for it... if he can get one used for $50 then go for it, you'll get some performance increase for pretty cheap.

Yes, one 7900GT will beat the 6800 SLI but it's not that cheap of a card. If he was going to buy both new right now then for sure the cost of the 7900gt would not be much more for like twice the performance of 2 6800s.

 

[Heyyou27]

If you can get the second card very cheap, go for it.

 

[mrquin27]

I can pick it up for right under 100$ and i have an sli board, im not going to drop 300$ on a direct x9 card just to have direct x10 come out 2 months or what ever after. Its a good card its just newer shit like FEAR I cant run at max. So anyway you are saying game performance wont improve?

 

[badge]

I can pick it up for right under 100$ and i have an sli board, im not going to drop 300$ on a direct x9 card just to have direct x10 come out 2 months or what ever after. Its a good card its just newer **** like FEAR I cant run at max. So anyway you are saying game performance wont improve?

Adding the second card in SLI to your system will increase performance as much as 50% of what it is with the one card you have. A lot.

 

[waylander]

The performance of SLI is something like 10-50% over a single card. It really depends on the game, in some games you even get worse performance (not many of those).

I guess you have to determine whether $100 is worth the 30% (average) increase in performance over your current card.

 

[Heyyou27]

For under $100, get the second 6800.

 

[BoRDeNWaSSeR_RoCCo]

The performance of SLI is something like 10-50% over a single card. It really depends on the game, in some games you even get worse performance (not many of those).

I think it has more to do with the kind of motherboard you use ; there are only a couple of boards which support dual 16X PCI-E...
All other boards devide the ports to 2 times 8X PCI-E.

 

[prozac26]

The performance of SLI is something like 10-50% over a single card. It really depends on the game, in some games you even get worse performance (not many of those).

I think it has more to do with the kind of motherboard you use ; there are only a couple of boards which support dual 16X PCI-E...
All other boards devide the ports to 2 times 8X PCI-E.
No, very little impact on performance. Right now dual 16X mobos, are marketing.

 

[BoRDeNWaSSeR_RoCCo]

I used to have an A8N-SLI and when I replaced it with the A8N32 performance almost doubled.

 

[prozac26]

LMAO, yea, right :roll:

 

[BoRDeNWaSSeR_RoCCo]

minor detail is ; on the A8N-SLI I got only 3 GPU's up and running and only on the A8N32 I got the fourth enabled with some customized driver Asus provided.
And IMO Asus (graphics) drivers in general should be avoided but this one works like a charm for quad GPU.

 

[Heyyou27]

I used to have an A8N-SLI and when I replaced it with the A8N32 performance almost doubled.

And then with your "FX59" you then ran super pi 1m in under 10 seconds. :roll: