Advise on SLI

[DryMan]

Hi guys.

currently I have a asus 8800gts (640). And I'm planing on buying another from eBay, so that I'll have them in Sli.

however, i was thinking whether it would be worth it to rather buy 2 new 9800gt.

so basically I want to know whether the performance between the 8800 gts and the 9800gt is great enough to pay for 2 new 9800gt, rather than just 1 8800gts

ps: i have a silverstone 650w PSU will, that be sufficient for the SLI config?

 

[shadow187]

Instead of buying two 9800GT's ($90~EA), buy a Radeon HD 4890. It'll easily outpace the 9800GT's.

 

[JackNaylorPE]

Buy 2 of whatever and use the 8800 as a dedicated PhysX card.

 

[tortnotes]

Decide on a budget first and check out the best videocards for the money page. If you can afford ~200, go with a single 4890. No SLI scaling issues and it should give better AA performance than the 9800GTs.
If you can afford more, why not a 5850? You could also look at a 5770--DX11, about the same specs as a 4870, cheaper than a 4890 or 5850, and likely to see better performance as drivers improve.

You have a lot of good choices here, it just depends on how much you're willing to spend.

 

[Dahak]

I recommend buying a gtx 285 and using the 8800gts as a dedicated physx card.Yes you could go with a 5850 or 5770,but then you would not be able to use the 8800 for physx as NVIDIA does not allow physx when using an ATI card with an NVIDIA card.Goodluck.

Dahak