Good enough Power Supply?

[newbjumper]

Hello there!

I just recently completed my first build, but im not sure if my power supply can handle it. Here are my specs:

Cpu: intel core i7-6700k
Cooler: hyper 212 evo with 2 fans
Motherboard: msi z170a pc mate
Graphics cards: evga gtx 1080 founders edition and pny gtx 760 in sli
Ram: g skill series 16gb ddr4 2133mhz
Storage: toshiba 3tb hdd and adata 120gb ssd
Power supply: thermaltake tr2 600w

Pcpartpicker said the total watts i will consume is about 560 watts, but i heard power supplies are only efficient at around 40-60% usage and i could get bottlenecked. Is this true, and if so what power supply should i get?

Thanks

 

[Isleepalot]

You should get a 750 watt power supply and then you should be good.