To all the ati users: I had/have an ati 5870 with better cooling oc to 900 (so not so much).
Ati's AA options in general use more hardware then nvidia does - they look a bit better but not compared to the fps hit.
I was able to play the game pretty well if i didnt go over 2X AA (used adaptive for trees since they look crappy without).
But like i said, that was with oc 5870 and another cooler (accelero extreme) without the cooling also the ati card was loud and hot. I think the 6-series does that much better but it is a tad slower atm (im not talking about 2-3 card solutions which FF doenst support anyways, at least not good).
Benchmark programms are more or less just s slight direction but in my experience pretty useless when it comes down to actual smooth gaming since it only counts the frames all together. Doesnt say much about smoothness in gameplay.
thats why i stopped useing sli/x-fire since only few games really have a good profile for that the rest has more problems then benefits. And heat/power consumption also doenst feel right (6 series is better there though)Sli and x-fire unless it really gets developed on more and supported more by the games, which is essential, isnt more then e-peen contest for most of the time.
The 6870 is a good card but its slower then then 5870 and much slower then the gtx 580, so its only natural that ffxiv isnt as good on ati atm. Ati just doenst have a card comparable to the 570/580 atm and the dual gpu card is something different and shouldnt be compared imho.
They win the prize for power and less noise though
And the 580 still isnt optimized a lot and furmark gets my card to mx 75C ffxiv does it to 85C (all other games, crysis, AOC rift, or maxed games are at around 72C in full load with stock cooling).
im a bit nerdy with hardware sometimes but i wouldnt recommend looking into so much new hardware if you dont have the money atm, since the biggest problem for ATI and NVIDIA is the unoptimized game engine which eats everything no matter what ... So wait for optimisations from the developer side.
the 6(ati) series as well as the 5(nvidia) series are still babies and will get optimized. so if ff , nvidia and ati optimize on it,
i think the higher 6 series should be fine with ff.
Damn i always write so much... but i tweaked around the game since beta lol