hd6750gddr5的精选

gt650md5&gtgt650md3&gtgt640md3≈hd6770m。650m和640m核心相同，区别仅在频率和带宽。650md3相当于桌面9800gt，650md5相当于桌面hd6750水平，640md3只有9600gt水平。d5的650m要比d3的强15%，d3的650m因为频率更高比640md3强...