A 4650? yes. It has no additional connectors on the card, so the max it can draw is 75W from the PCI-E slot itself, powered by the main 24 pin connector.
Id the card has on power connectors, it can only draw 75w from the slot.
Total power consumption varies based on the TDP of other components.
GTX 560 needs 170 watts alone. Just a tip!![]()
Any figures for the HD6790 yet?