把記憶體頻寬公式背下來,誰快誰慢一清二楚,非常有用!
記憶體頻寬=[位元數(bits)/8*頻率(MHz)/1000](GB/s)

GeForce2 MX400(128bitSDR):
128/8*166/1000=2.7GB/s

GeForce4 MX420(128bitSDR):
128/8*166/1000=2.7GB/s

GeForce4 MX420(128bitDDR):
128/8*333/1000=5.3GB/s

GeForce4 MX440SE(64bitDDR):
64/8*333/1000=GB/s=2.7GB/s

GeForce4 MX440SE(128bitDDR):
128/8*333/1000=GB/s=5.3GB/s

GeForce4 MX440(128bitDDR):
128/8*400/1000=GB/s=6.4GB/s

所以:
GeForce4 MX440SE(64bitDDR)=GeForce4 MX420(128bitSDR)
倒不如買MX420DDR