I don't understand this one. I just stepped up from an 8800GTS 512 to a new 9800GTX and for some reason I'm getting bad lag when I zoom in on some areas. It's usually in one specific area, like I can zoom in on a more crowded, but slightly different area and have perfect FPS. I'm talking drastic changes, as in going from straight 60 down to 2 or 3 FPS. I'm using the official release of the 174.74 drivers for my 9800GTX and while I was waiting for my step up I was using an old 7900GS with the BETA version of the same drivers with absolutely no problem. My 8800GTS worked fine, my 7900GS even worked fine, but my 9800GTX can't? I'm using the same settings across the board, but I was using 2x AA for the 7900GS compared to 4x AA for the 8800GTS and 9800GTX. Any help would be appreciated!
Full Specs:
DFI Infinity 975X
e6600 Core 2 Duo @ 3.4gHz (378x9) [1.3v] ZALMAN CNPS9500 AT 2 Ball CPU Heatsink
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1000 (4GBPQ) Running DDR2 756 at 4-4-4-12 [2v]
eVGA e-GeForce 9800GTX 512MB GDDR3 [795/1965/1160MHz]
2x WD 160gb 7200RPM SATA in RAID-0 [105MB/s]
Corsair HX Series 520HX PSU [12.14v +12v Rail]