MSI R6850問題

MSI R6850-PM2D1GD5/OC
MSI R6850 Cyclone 1GD5 Power Edition
MSI R6850 Cyclone 1GD5 Power Edition/OC
MSI R6850-PMD1GD5

1.這4塊顯卡價錢一樣嗎?
2.友人推薦R6850-PM2D1GD5/OC效能較好約多少$?
3.現在還買的到R6850-PM2D1GD5/OC嗎(原價屋只有R6850 Cyclone 1GD5 Power Edition)還是已停產?

該提問已經撤銷!