Sorry if this is a silly question but what is between these 2 GPU's ie one is DC20 and one is TOP, or put another way what does DC20 and TOP mean.
ASUS GeForce GTX 660TI Direct CU II DC2O 2048MB GDDR
ASUS GeForce GTX 660TI Direct CU II TOP 2048MB GDDR5
Cheers
ASUS GeForce GTX 660TI Direct CU II DC2O 2048MB GDDR
ASUS GeForce GTX 660TI Direct CU II TOP 2048MB GDDR5
Cheers