I own a hardware butique, an recently build 2 PCs with almost the same configuation:
Intel Core 2 Quad Q9550 @ 2,83 GHz
4Gb DDR3 1600MHz CL7.7.7.18 Kingmax MARS (1,9v)
DFI Lanparty P45 T3RS
500Gb WD SATA2 HDD
550W Antec Neopower PSU
Antec 300 PC Case
Microsoft Windows 7 X64 RC1 Build 7300 (30 day trial)
Catalyst 9,9 and respectively Forceware 191
One client wanted a Radeon 4850 512MB from Powercolor, an the other one went for the more expensive GTS250 1GB from Sparkle.
Before handing over the sistems, i installed Win 7 RC1 and several games i had around the shop, that came bundled with several VGA card to get a feel for them. These are my conclusions:
Crysis Warhead @ 1680x1050 - gamer preset no AA, 16xAF
- GTS250 1GB ~ 42 FPS (keep in mind this is a nVidia optimised game)
- 4850 0,5GB ~ 38 FPS
Sltalker Clear Sky @ 1680x1050 - maximum detail, 4xAA, 16xAF
- GTS250 1GB ~ 28 FPS
- 4850 -0,5GB ~ 35 FPS (keep in mind this is a ATi / AMD optimised game)
Far Cry 2 @ 1680x1050 - maximum detail, no AA, 16xAF
- GTS250 1GB ~ 55 FPS
- 4850 -0,5GB ~ 56 FPS
The diffrence between cards is minimal. I would go 4 the ATi because:
- it is WAY cooler (37 degrees celsius while idle, while the GTS250 idles at 49.)
- Crossfire works with ALL games, it doesn't require the game to support it like SLi does.
- requires just one PCIe Power connector, and less power to run properly.
- CHEAPER.
My 2 cents.