Originally Posted by Rickyyy369
I guess what concerned me was most reviews peg the 7970 Ghz edition at around 300w under load, and an overclocked 8350 at 300w+ under load. But now that I think about it, all 8 cores of my processor are never loaded at 100% while my video card is simultaneously loaded to 100%. Thats really the only scenario that I might run into a power constraint. My CPU is usually barely pushing 20-50% while gaming, and my gpu is sitting at idle while doing encoding work. So I think this might work.
I was thinking about going for the kraken x60 because holy god does my CPU pump out heat.. even at 4.2ghz using the stock voltage of 1.32v it rockets up to 62C+ in less than a minute when its under load. Its insane. I didnt know the hyper 212+ evo would be so inadequate.
Check this out: http://www.guru3d.com/articles_pages/amd_radeon_hd_7970_review,8.html
With one 7970 under full load in their system, their PSU pulled 355W from the wall outlet. Their CPU was idling during this test, so if I add 150W for your CPU overclocked and under full load at the same time as the 7970, then that would make the PSU pulling 505W from the wall outlet. So, if the PSU is 85% efficient while pulling 505W from the wall outlet, then that means the computer is pulling about 430W from the PSU. Your gaming power draw will be even lower, just as you noticed. So, it will should never exceed 400W, and this is what a lot of people don't get. They forget that their CPU is very likely never past 50% load while gaming.
Your PSU's total output capacity won't be challenged at all.
Edited by TwoCables - 10/14/13 at 7:59pm