What PSU Watt Would My System Need

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Carl7811

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Apr 19, 2014
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Hello. I was wandering what sort of PSU I would need for my system and also if anyone had any suggestions on a decent PSU Brand to go for. So far I have chosen, as a possible, PSU the Seasonic M12II EVO Edition 750W '80 Plus Bronze' Fully Modular Power Supply. My system is;

CPU - Intel Core i7-4770K 3.5GHz Quad-Core Processor
CPU COOLER - Cooler Master Hyper 212 EVO CPU Cooler for All Intel/AMD CPU's
MOTHERBOARD - MSI Z87-G45 Gaming ATX LGA1150 (Socket 1150) Motherboard
MEMORY - G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory
STORAGE HDD - Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
STORAGE SSD - Samsung 840 EVO 250GB 2.5" Solid State Disk
VIDEO CARD - EVGA Nvidia GeForce GTX 780 Superclocked ACX Cooler 3GB GDDR5
CASE - Cooler Master HAF X Gaming Tower Case
POWER SUPPLY - ????
OPTICAL DRIVE - Asus DRW-24F1ST DVD/CD Writer

Any help would be really appreciated. Thank You.
 
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An excellent 500 watt supply would do, or pretty much any good quality 550 - 600 would be fine. The one you picked would do as well, especially if you plan on going SLI at some point.

You can take a look at this chart: http://www.anandtech.com/show/6973/nvidia-geforce-gtx-780-review/19

Keep in mind that the chart I linked shows power usage for the whole machine from the wall. If their power supply was 90% efficient then the peak they recorded was 405 watts from the wall that would mean it's actually supplying about 365 watts to the machine.
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Traciatim

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An excellent 500 watt supply would do, or pretty much any good quality 550 - 600 would be fine. The one you picked would do as well, especially if you plan on going SLI at some point.

You can take a look at this chart: http://www.anandtech.com/show/6973/nvidia-geforce-gtx-780-review/19

Keep in mind that the chart I linked shows power usage for the whole machine from the wall. If their power supply was 90% efficient then the peak they recorded was 405 watts from the wall that would mean it's actually supplying about 365 watts to the machine.
 
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Traciatim

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Yep, pretty much. Gone are the days where you need 200 watt CPU's and 250w just for your video card. Even the top end stuff in most cases for single card setups most good quality 500's can handle. Going more than this is more for future upgrades or special purposes like SLI/Crossfire setups.
 
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