Full Details from Amazon.com : http://www.amazon.com/gp/product/B0033KBT68?tag=onigi-20

Asus ATI Radeon CuCore HD5770 1 GB DDR5 PCI-Express Graphics Card EAH5770 CUCORE/2DI/1GD5

DVIVGAHDMIHDTV 1080I support
1GB of DDR5 memory Memory Clock 4800 MHz Memory Interface 128 bit
Radeon HD5770
ASUS Cooler CU Core Fansink
Engine Clock 850MHz