I am building a new pc and i don't know which psu is better. they are both about the same price.
https://www.amazon.co.uk/EVGA-100-W1-0500-KR-500W-Power-Supply/dp/B00H33SFJU/ref=sr_1_1?ie=UTF8&qid=1464193977&sr=8-1&keywords=500+w+psu
https://www.amazon.co.uk/Corsair-CP-9020097-UK-VS550-Power-Supply/dp/B00TE4XSMA/ref=sr_1_2?ie=UTF8&qid=1464193977&sr=8-2&keywords=500+w+psu