迪兰非公版HD7970 Vortex供电部分近照-快科技-科技改变生活

迪兰非公版HD7970 Vortex供电部分近照

上方文Q
2012年01月16日 09:40
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迪兰的非公版Radeon HD 7970 Vortex日前曝光了几张“远景照片”，TechPowerUp今天又放出了两张近照，主要展示了其供电电路设计。

该卡的供电主控芯片是CHiL CHL8228，支持大多数工具软件进行调节控制。供电电路分布是核心8相、显存1相、辅助1相，外加两个八针辅助供电接口，而电感是所谓的“High Current Power Beat”，PWM频率范围最高3MHz。

迪兰放弃了公版上成本高昂的国际整流器DirectFET，改用更低廉的Driver-MOSFT(DrMOS)，似乎来自瑞萨。当然了，这并不意味着用料的缩水，迪兰表示这些芯片的效率高达93％，切换频率最高1MHz。

另外在PCB的背面，还可以看到大量SP电容，可将ESR降低40％，并支持更高的切换频率。

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