* The Radeon HD 4890 is based on the RV790 GPU, its ASIC and board design is very similar (if not identical) to its predecessor, the HD 4870 / RV770
* It comes with near-identical specifications, so far its clock speeds seem to be the only specification that sets it apart
* It comes with a core clock speed of 850 MHz, with a 256-bit wide GDDR5 memory interface, with memory clocked at 975 MHz (effective 3900 MHz, 1950 MHz DDR)
* It features 800 stream processors, and supports DirectX 10.1, SM4.1
ท่าทางจะเล่นมุขเดียวกะ GTX285 นะครับ อิอิกำ