Ah, I see. So essentially its somewhat a waste of money to get pc4400. But if I overclock the board to higher speeds, then the memory can act higher as well, correct?
Well...yes and no towards the waste of money. A good 1gb of some memory like.
OCZ Platinum Rev 2s
(first two on the list are pretty much the best)
Those can OC to 275MHz+ or DDR550 if you know what you're doing. Basically takes upping the voltage and just loosening timings a bit. That G.Skill LA I believe is rated at 275MHz(DDR550) at 2.5-3-3-7 timings, pop the voltage up to 2.9v and then slowly get your CPU up to that speed and you got a champ system...of course on the AMD64 you'd have to lower the HTT Link speed from 5x to 4x or possibly even 3x because you don't want to OC the overall bus on those boards beyond 2000 or 1600 depending on your board.
As far as SLI goes, chris is pretty much right
I think it's a stupid way for nvidia to go (and I do prefer nvidia I'm not gonna lie there, so I'm not saying this from an ATI's fan view or something)
SLI currently can be very buggy, and of course not all games support it, so unless you love to play 3dmark05 it can turn out to be a waste if you're playing a game that'll only use one card anyway.
Of course no doubt more support will come as it ages, but as of right now I think this 2 card solution is just crap.
As far as I'm aware, ATI's X850XTPE is basically the best card on the market, how it differes from say an X850XT someone like dale could probably tell you. Those cards, however, are basically beefed up X800's I believe so it is correct in saying that they basically wont' want to OC at all.
A good 6800GT should be able to OC to and possibly beyond Ultra speeds with it's stock heatsink, so if you were to get a better heatsink, or even water cooling, you should be able to make it a nice and powerful card, but again I honestly don't know how it would compare to say an X850XT
I believe that ATI's cards will suck horribly in games like Doom3 that uses openGL and of course will excel in HL2 that uses DX (someone let me know if I got that backwards lol)
The thing about nvidias flagship cards is that, it excels in doom3 of course, like ATI's do in HL2, but unlike the ATI's the nvidia can still play HL2 with great ease even though it's meant for ATI....for whatever reason ATI can't do that in doom3, they take a nose dive in performance....but of course those are just the current best games next to far cry, and more will be coming out so it's just a matter of time before those points become useless...
Main point is ATI sucks at openGL worse than nvidia sucks at DX.....
Finding a use 6800GT for $100 I'd say is probably an unrealistic option. Doubt anyone would sell it that low.
I'd say for all around compatibility and not having to worry about bugs for the most part, go with the ATI flagship, OR wait a little bit longer because they will be releasing their 24 pipeline "32 effective" 512mb monster, and as of yet I haven't heard any news as to what nvidia plans to do in terms of retaliation...perhaps they are cooking up something, perhaps they are still working on more SLI, not sure.
Honestly it's a really tough call. I would personally probably choose the ATI flagship over SLI
So SLI might get 150FPS instead of 140FPS.....human eye doesn't notice beyond around 40 anyway.
lol so yeah that probably turned out to be a useless rant haha, but, it's a really tough call, but I just really don't like SLI