Question Do I have enough power supply for the new RTX 3070?

fishboi

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Apr 25, 2006
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I have a SeaSonic X Series X650 Gold (SS-650KM Active PFC F3) PSU. I'm runnning an i7-3770k overclocked to 4.5ghz with a GTX n660 GPU.

I did some power draw testing using one of those Kill-A-Watt meters:
  • Prime95 running 100% on all 8 threads = 145 watts draw
  • Gaming on ultra settings = 200 watts draw
  • Game on ultra settings + Prime 95 running 100% on all 8 threads = 250 watts draw
This PSU is rated 80 PLUS GOLD, so 650 X 80% = 520 watts available to draw (is this how I calculate it?).

Seems like I should have ample headroom, but from what I've read, a 750W PSU is recommended with newer CPUs.

Will I be ok with this setup? I looked up the 3070 vs 660 TDPs. It appears the 3070 will draw an additional 80 watts. So if I'm drawing 330 watts with 520 available (and I know what I'm doing here and my math is correct), will I be fine?

Thanks everyone!
 
I have a SeaSonic X Series X650 Gold (SS-650KM Active PFC F3) PSU. I'm runnning an i7-3770k overclocked to 4.5ghz with a GTX n660 GPU.

I did some power draw testing using one of those Kill-A-Watt meters:
  • Prime95 running 100% on all 8 threads = 145 watts draw
  • Gaming on ultra settings = 200 watts draw
  • Game on ultra settings + Prime 95 running 100% on all 8 threads = 250 watts draw
This PSU is rated 80 PLUS GOLD, so 650 X 80% = 520 watts available to draw (is this how I calculate it?).

Seems like I should have ample headroom, but from what I've read, a 750W PSU is recommended with newer CPUs.

Will I be ok with this setup? I looked up the 3070 vs 660 TDPs. It appears the 3070 will draw an additional 80 watts. So if I'm drawing 330 watts with 520 available (and I know what I'm doing here and my math is correct), will I be fine?

Thanks everyone!
The real question is, how old is it? That model came out a long time ago.
 

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