maxxw7 :
so i looked at the bench marks and itg says the gtx 970 needs 500 watts. So that means i will be good with 600 watt psu?
Not sure what benchmarks have to do with PSU sizing but yes, I quoted two sources:
1. nVidia who makes the 970 said you are fine with 500 watts
2. Guru3D who tested the 970 by measuring power draw "at the wall" and said 500 watts is fine
Not sure why there's still a wattage question here. That being said, I recommended a 750 watter because:
a) that particular unit I linked to is better quality than the offered unit.
b) It is cheaper than the offered smaller PSu
c) You can add a 2nd GFX card down the line.
I would not use an EVGA B1 / G1 model in a PC build no matter if it was 500, 600 or 100 watts
B2 yes
G2 yes
P2 yes
GS yes
B no
B1 no
G1 no