Re: GTX 260 vs 285
I wouldn't say you can bump up a GTX 280 to GTX 285 speeds that easily. The GPU may overclock to 650MHz, but NOT the shaders or memory. I tried to overclock my GTX 280 up to 1500MHz shader speed, and it would crash. Some GTX 280s may go that high, but it isn't guaranteed.
Core i7 2600 @ 3.7GHz
EVGA GeForce GTX 780 Superclocked 941 MHz
1TB Seagate HDD 7200 RPM 32MB Cache
16X BluRay-RW drive
Dell 30-inch U3014 monitor