Corsair RM650x vs Seasonic g series 650

[Eduardo Da Silveira Cabral]

Hi there, so next week I am going to make my own PC and I can't decide whether to buy a Seasonic G-Series 650W 80plus gold PSU or a Corsair RM650x 80plus gold PSU I basically want to know if which one should I get, I hear a lot of good things about seasonic but the corsair psu is slightly cheaper, and yes I know the seagate is semi modular and the corsair is modular and I am fully aware of the advantages of using a modular PSU over a semi-modular or non modular one, so for me that doesn't make or break my case. I am willing to overlook that because even though the seagate psu is semi-modular the only non modular cables are the atx and cpu power connectors which EVERYBODY uses regardless of their build. So COMPLETELY IGNORING THE MODULAR FACTOR which one is best Seasonic G Series 650 Watts or Corsair RM650x? Thanks
Also with my my build I was thinking of OCing my GPU, is 650w 80 plus gold enough? Here is my build:
Intel Core i7-5820k 6-Core 3.3 GHz 15MB - 140 Watts
ARCTIC Liquid Freezer 120 CPU Cooler - 15 Watts
MSI Nvidia GeForce GTX 970 TWINFROZR V 4GB - 150 Watts (requires at least a 500W and 30 amps PSU according to the manufacturer's website)
2x G.Skill Ripjaws V Series 8GB 2133 MHz DDR4 RAM - 11 Watts
MSI X99A SLI - 70 Watts
Western Digital Caviar Blue 1TB EZEX 3.5" 7.2K HDD - 20 Watts
Samsung 850 EVO 500GB 2.5" SSD - 10 Watts
That makes a total of 416 Watts so I know 650 is enough, but is a 650 80plus gold psu enough if I decide to OC both my CPU and GPU?
Thanks

 

[Dark Lord of Tech]

Corsair RM650x is the better power supply and now has a 10 Year Warranty.

For a single 970 and overclocking is perfectly fine.