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This depends on the CPU and the other system components power draw, If it has a decent efficiency rating and if the power supply is quality, you could get away with 600w. Id say a reccomended unit would be something like a Corsair CX650M if you are paring this with a CPU with a TDP of less than 150-200W (so something like a Ryzen 5 7600X). People reccomend 750W for peace of mind and for future upgrades. Logically, 600W is the minimum and you can get away with it. I think best buy mislabeled the reccomended watts. That is the TDP of the 4070 they labeled; 200W. They must have mistook it for the reccomended power supply.
Sorry, there was a problem. Please try again later.The video card itself requires 200 watts of power in order to run it properly, and the 740 watts is at least the PSU(Power Supply Unit) required to build a system with CPU, RAM, video card and motherboard.
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