[操作疑難] 想UPGRADE部舊機,邊粒U好D??

舊機仲用緊775插,暫時睇中Q8200 Q8300 Q6600 Q9300,幾粒價錢同效能都差唔多,請問CHING點樣簡?同埋BUDGET HKD1400左右換埋顯卡,有咩推介?