Originally posted by: Rollo
Sorry but anything below 50 or minimum of 45 frames is not smooth enough for gameplay.
HL2
6600GT SLI beats single 6800GT at all 16X12 benches, including the two 16X12 4X16X.
In d1_canals_12, both cards are equally as fast at all resolutions. And no thanks to your 1600x1200 4AA/16AF at 0.1 frames faster with 6600SLI, still measly 34.8
In d3_c17_02, the only playable resolution of 1280x1024 4AA/16AF, 6800GT wins at 55.2 vs. 52.2 frames (still same exact playability)
Doom3
Uhoh- 6600GT SLI faster than a 6800GT at D3DM4 16X12 4X16X too!
Uhoh - 6800GT is faster at every setting in Hellhole
The only other playable setting for d3dm4 is 1280x1024 where 6800GT gets 58.4 frames vs. 50.1 for 6600SLI
Halo
Nooooo! 6600GT SLI way faster at Halo 16X12 4X8X.
Xbit labs - "Because of using specific rendering methods, the game doesn?t support full-screen anti-aliasing." Which means firingsquad benches mean squat. Xbit gets 54.1 frames with 6800GT no AA/AF and 52.8 with 6600SLI at 1600x1200 yet firing gets 65.1 frames at 4AA/16AF? I dont think so.
HL2, Far Cry, and IL2 at 20X15!
Waaassssssupppp Munky?!?!? 6800GT beat by 6600GT SLI, at a resolution you said it couldn't even run!
IL2 - "IL-2 Sturmovik would be an excellent demonstration of the benefits of SLI technology, but to our regret it is in this game that we encountered troubles with the quality of the picture. The water surface suffers the most, so you?d hardly like to play that, even though you can get an almost twofold performance gain by enabling the multi-GPU mode."
Besides the performance at 20x15 is so slow, you'd hardly wanna play any of the games you mentioned with 6800Gt ot 6600SLI
Last but not least:
There is more bang for the buck value in a GeForce 6600 GT SLI configuration than anything comparable.
Probably the stupidest statement someone ever said in the video forum. When 6800Gt came out at $399 and you bought it the same day, you enjoyed that fast performance 6 months before 6600GT was available at $199 msrp + 2 more months of $200+ sli boards + bugs that took forever to get worked out. Now 6800Gt AGP is $300 and still less than 2 6600GT boards, not to mention adding $30-40 for an sli board. On PCIe front, x800xl is by far a better value at $250 than 2 6600GT boards + a more expensive board and psu.
In summary: SLI is not supported by all games, needs a more powerful (costly) psu, implies a higher motherboard cost, more bugs associated with sli (such as image quality) and you can start to see how 6600GT SLI can never be better than x800xl or 6800GT as a whole (especially since ati cards are faster than nvidia cards in BF2 - the game he plans to upgrade for).
Again SLI only makes sense for high end cards and at the very time they come out.
For those on a budget, it is also better to buy 3 $200 cards during 3 year period than 1 $600 card over the same period of 3 years. That is why SLI simply does not make sense unless you buy high end and have money to replace it with SLI once again.
Finally, chances that he'll find the same BIOS version of his 6600GT card are slim.