imo i think the one that causing the bottleneck is the processor, i had a 4870 on a pci-e 1.1 before, upgraded to a biostar TA790gx w/ pci-e 2.0 but there wasn't any difference at all. i think the pci-e slots are fine
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Phenom II 955, 2gb kingston ddr3, Gigabyte GA-MA790FXT-UD5P AM3, 2x WD 500gb SATAII 16mb cache, Palit Radeon HD4870 1gb dual edition@crossfire, LG dvd writer lightscribe, HEC Cougar 700w PSU, modded gigabyte poseidon atx, G Power II cpu cooling running on Windows Vista Ultimate SP 1 |