Which PSU and why?

Yussefoh

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I'm building a PC With a GTX 780 (May or may not be Factory OC) a Gigabyte Z87X-UD5H Segate Barracuda 2TB A Corsair SSD 128GB Corsair Vengance RAM an Intel I7 4770K, only thing I ask about is the PSU I'm planning on getting a 750w PSU is that good enough? And I'm choosing between a TX750M (I know it's Semi Modular I did my research) or a CX750 what's the difference which one is better? And why? And is 750w enough? Thank you for reading.
 
550W is enough for that build, unless you want to SLI. I'd avoid the CX series, as they tend to have cheap capacitors, so are likely to fail early. Any of the brands in my sig are fine; XFX are generally quite cheap and very good.

There's no point in that pricey a MB, get something like a GA-Z77X-D3H.
 

Yussefoh

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I already got the pricy MB, thanks for the advice, so I should go with the TX750M? And that was very helpful :) No wonder you a veteran++

 

Yussefoh

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Noted, thank you for the advice, I just learned that coolers actually take up some watts
 

Yussefoh

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Will a GTX 780 fit a CM 690 II advanced Nvidia Edition case? Even for a non reference card?