按理說4890的耗電量比6870多
所以應該可以直升6870不用換電源吧
其它配置無變動的情況下
謝謝大家回復 我是450W的
ATI Radeon™ HD 4890 Graphics System Requirements
500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for ATI CrossFireX™ technology in dual mode)
AMD Radeon™ HD 6870 Graphics
500 Watt or greater power supply with two 75W 6-pin PCI Express® power connectors recommended (600 Watt and four 6-pin connectors for AMD CrossFireX™ technology in dual mode)
功耗需求是差不多了
所以沒問題
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