Тут глянь. http://www.techpowerup.com/vgabios/index.php?architecture=ATI manufacturer=Asus model=HD+4870 interface= memType=GDDR5 memSize=

Тут глянь.
techpowerup.com/vgabios/index.php?architecture=ATI&manufacturer=Asus&a...

Прошивка bios видеокарты ASUS EAH4870 DK/HTDI/1GD5