The 7900 GS will be a lower-clocked G71 card, we understand but we don't know what cut-down speed it will whirr around at.
The second one will be the Geforce 7500 GT, probably based on Nvidia's G73 core and it is therefore logical to conclude it will be cheaper and run at at a lower clock speed than the 7600 generation of cards. We will try to get some specs for you. µ
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