Those intending to buy a GTX590 should definitely be wary of the card’s power consumption. With its two GF110 GPUs, it is the card with the highest power draw at stock speed, albeit just under 500W. Overclocking increases power consumption by 20W and the lack of voltage tweaking goes a long way at limiting the maximum power draw. Compared to AMD’s HD6990, power consumption is lower at overclocked speeds due to no voltage modifications and an aggressive OCP.
