How to choose a power supply and is it worth taking the Corsair RM650?

Question

Iron

Hello!
Can you please tell me how the power supply is selected?
Approximately this configuration:
GIGABYTE GA-Z97X-UD7 TH
Crucial Ballistix Tactical 16GB 240-Pin DIMM DDR3 1600
SSD 120GB, 2.5", SATA III, Samsung 850 EVO Series, MZ-75E120BW
Intel Core i5-4690
GIGABYTE GV-N75TOC-2GI, GTX750Ti 2048MB GDDR5
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Answer 1

outervision.com/power-supply-calculator www.coolermaster.com/power-supply-calculator
powersupplycalculator.net
RM
is a great ruler. at the very same, only 750.
in the pros - most of the time it is not even audible.
modular means that all cords do not come in a bundle from the block, but are connected to it.
this allows you to get rid of unnecessary wires and leave only those that are actually used. https://www.youtube.com/watch?v=uSTh_N7_fwI