Juste une petite précision à propos des trois cartes:
Caractéristique de la HD5770M ------/-------------HD6770M-------------/-------------HD7690M
Codename :---------- Madison-XT------------------Whistler-XT---------------------------Thames XT
Pipelines :------------ 400 - unified-------------- 480 - unified ------------------------ 480 - unified
Core Speed *:-----------650 MHz --------------------- 725 MHz----------------------------725 MHz
Shader Speed: *:-------650 MHz ----------------------725 MHz--------------------------- 725 MHz
Memory Speed *:-------800 MHz --------------------- 800 MHz-------------------------- 900 MHz
Memory Bus Width:-----128 Bit------------------------128 Bit------------------------------128 Bit
Memory Type :----------GDDR5------------------------GDDR5 ---------------------------- GDDR5
Shared Memory :------ no------------------------------- no---------------------------------- no
DirectX:----------------DirectX 11, Shader 5.0 --- DirectX 11, Shader 5.0----- DirectX 11, Shader 5.0
Transistors:------------- 627 Million--------------------716 Million 716 Million
technology : -----------40 nm---------------------------40nm------------------------------- 40nm