First of all, its 667Mhz, not 633.
I doesn't have much difference performance wise. 533Mhz have less latency but slower speed, 667mhz have higher latency but faster speed. Overall, they perform about the same.
Originally Posted by joonboy
I understand that when I'm applying for a replacement from complete care, they'll give me equal or greater value of system.
But my eyes just CANNOT stand a LCD resolution higher...
DX10 is NOT backwards compatible with DX9 or older versions.
http://www.gamespot.com/features/6143883/p-4.html (watch the video)
I am not saying you won't be able to play DX10 games. You can play DX10 games with older hardware but...