1000W enough for RTX 2080 sli/nvlink?

[sr13798]

This is my system build: https://pcpartpicker.com/user/sr1378/saved/HCPFt6
769W does not take into account the OC to 4.6 on the CPU or the minor difference in RAM at 1.35. I used the 2080 ti's just to grab the higher wattage as I will be overclocking the 2080's. I am thinking of upgrading the psu to the Corsair HX1200i.

 

[bmockeg]

The 1000 is plenty, 1200 is fine if you dont care about money

 

[sr13798]

I care, have not upgraded my i7 as many have to the 8700k. I have 3 rigs and they also mine, so the PSU is a consideration not just for gaming. RVN (x16r) is a tough algorithm.

 

[zebarjadi.raouf]

Your 1000W Gold should be capable 90% efficiency = 900W. So let's do some math:
CPU: 150W Max OC
GPU: 300x2 = 600 With OC I don't have access to the BIOS so I added 15%.
Other:100W just to be safe.

850W. Yeah, it should work. I rounded all the numbers upwards for extra safety. If you don't OC everything to the max, it's guaranteed to work.
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Still, 2x2080Ti scares me. You sure you won't decide to upgrade your CPU later on. 1200W Might come in handy then.

 

[sr13798]

Keep buying higher wattage psu's. 1200 it is then, I will probably buy the next real (not 14nm) cpu upgrade once intel gets its stuff together.

 

[Rexper]

Your 1000W Gold should be capable 90% efficiency = 900W. So let's do some math:

That isn't how power supplies are rated. The rated 'wattage' refers to the maximum the PSU can deliver.
So a 1000W PSU with 90% efficiency at full load could deliver 1000W while drawing 1111W from the wall.

A high quality 1000W power supply is fine for your system

 

[zebarjadi.raouf]

That isn't how power supplies are rated. The rated 'wattage' refers to the maximum the PSU can deliver.
So a 1000W PSU with 90% efficiency at full load could deliver 1000W while drawing 1111W from the wall.

Hmm, you're right. My bad.
These points aside, the OP might upgrade to a power hungry CPU (150W+) later on. That will bring the full power usage to 900W or more with OC. You and I both know it's better not to keep the PSU at near peak usage.

Corsair - RMx 1000W 80+ Gold ($140)
EVGA - SuperNOVA G2 1300W 80+ Gold ($138)

They sell for the same price. Don't know about OPs preferences but I would go with EVGA.

 

[sr13798]

That isn't how power supplies are rated. The rated 'wattage' refers to the maximum the PSU can deliver.
So a 1000W PSU with 90% efficiency at full load could deliver 1000W while drawing 1111W from the wall.

Hmm, you're right. My bad.
These points aside, the OP might upgrade to a power hungry CPU (150W+) later on. That will bring the full power usage to 900W or more with OC. You and I both know it's better not to keep the PSU at near peak usage.

Corsair - RMx 1000W 80+ Gold ($140)
EVGA - SuperNOVA G2 1300W 80+ Gold ($138)

They sell for the same price. Don't know about OPs preferences but I would go with EVGA.

I already have all the components in the build, minus the gpus. I am going to move the 1000W psu with the 2 1070's to another rig and buy a 1200W psu for the 2080's. The question now is the Corsair HX1200i ,EVGA 1300 G2, or EVGA 1200 P2. Price difference isn't that much, $199 for both the 1200W and $158 for the 1300W. I have three corsair psu's now, a RM750i, RM850X and RM1000X and they have all worked flawlessly ( I have 3 rigs). I have seen good reviews on the EVGA's as well though.

 

[bmockeg]

I would get the cheapest of the three, they will all do fine

 

[zebarjadi.raouf]

The question now is the Corsair HX1200i ,EVGA 1300 G2, or EVGA 1200 P2. Price difference isn't that much, $199 for both the 1200W and $158 for the 1300W.

All of them are good with reviews and tests. I would get the cheapest one.

Also, unlike G2, P2, and HX are platinum. These two will have higher quality components but all three should last years. And damn, HX Corsair is hot as always.