Will 850w be enough ?

[theam123]

Hello LinesTechTips forum!

 

As I'm building a computer for my friend, 1 thing popped in my mind, as I havn't build SLI builds yet.

His build goes like this

 

4690k

8gb ram

h100i

Gigabyte gtx 780 ghz edition SLI

gigabyte ga-z79x gaming 5

Corsair 760T

Samsong evo 840 250gb

2TB HDD

Corsair rm850w

 

So now my thought is. Is 850 a overkill for SLI, or would 750W do the job ?

[JAKEBAB]

750w will do the job.

[theam123]

750w will do the job.

Thanks a lot. 

what if I'm going to overclock the CPU a bit, would 750w still be able to do it perfectly ?

[JAKEBAB]

Thanks a lot. 

what if I'm going to overclock the CPU a bit, would 750w still be able to do it perfectly ?

Yes

[mythicalbeast]

Go for 850, 750 may do. But you don't want to have to change your PSU in a year when then next gen of GPUs and CPUs comes out.

[Nineshadow]

Go for 850, 750 may do. But you don't want to have to change your PSU in a year when then next gen of GPUs and CPUs comes out.

Next gen is going to be even more power efficient...

[mythicalbeast]

Next gen is going to be even more power efficient...

That's what might happen, the power consumption may go up, it may go down. As well as it makes room for future uppgrades.

[daemonowner]

Bit-tech: With an overclocked 3570k and 780GHz, the system used 420W at most.

HardOCP: WIth an overclocked 3770k and 780GHz, the system used 385W at most, and less than 430W when the GPU was also overclocked.

Eteknix: With a stock 3960X and 780GHz, the system used 430W.

 

850W could easily do the trick, even while overclocking the CPU and probably GPUs. 750W might be cutting it a little close, but it would probably work.