U don't need that much power for that card or CPU. Just get a good quality 450-500 watt. The cx 500 is more for budget but itl handle that set up well enough.
Installation of any of the Nvidia GeForce cards is really easy. Once the card is seated into the PC make sure you hook up the monitor and of course any external power connectors like 6 and/or 8-pin PEG power connectors. Preferably get yourself a power supply that has these PCIe PEG connectors native (converting them from a Molex Peripheral connector anno 2013 we feel is a no-go).
•Download new NVIDIA GeForce drivers here
Once done, we boot into Windows, install the latest drivers and after a reboot all should be working.
No further configuration is required or needed unless you like to tweak the settings, for which you can open the NVIDIA control panel.
Let's have a look at how much power draw we measure with this graphics card installed.
The methodology: We have a device constantly monitoring the power draw from the PC. We simply stress the GPU, not the processor. The before and after wattage will tell us roughly how much power a graphics card is consuming under load. Our test system is based on a power hungry Core i7 - X58 system. This setup is overclocked to 3.80 GHz on all cores. Next to that we have energy saving functions disabled for this motherboard and processor (to ensure consistent benchmark results). On average we are using roughly 50 to 100 Watts more than a standard PC due to higher CPU clock settings, water-cooling, additional cold cathode lights etc.
We'll be calculating the GPU power consumption here, not the total PC power consumption.
Measured power consumption
1.System in IDLE = 119 W
2.System Wattage with GPU in FULL Stress = 308 W
3.Difference (GPU load) = 189 W
4.Add average IDLE wattage ~10 W
5.Subjective obtained GPU power consumption = ~ 199 Watts
Mind you that the system wattage is measured at the wall socket side and there are other variables like PSU power efficiency. So this is a calculated value, albeit a very good one.
This is a superclocked 770. It pulls under 200 watts and full load.... On top of all this the system is tested at the wall so you have to factor in efficiency and what not.
here we have a 3570k with overclock. Note that this is SYSTEM consumption. 267 watt with overclocked 3570k.
If you want a new quality PSU with no worries then these I recommend.
for 5 more dollars you can get a 550
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182068Edited by Quesoblanco - 11/30/13 at 4:09pm