Is 850 Watts Enough?

iiNrG · Dec 23, 2013

Hi Guys,

For any of the PSU experts, I have a corsair TX850M (Which is 80+ Bronze efficiency etc) and was wondering if I could run the following system (Overclocked considerably) on 850 Watts

i7 4770k @ ~4.7GHz
16GB Corsair Vengeance Pro 2400MHz
2x GTX 780 Ti DCII ~1250 / 1900
Peripherals e.g 7 Fans (On radiators), 3x HDD, 4x SSD, 1 Pump (Its watercooled)

Do I need more?

sosofm · Dec 23, 2013

http://www.guru3d.com/articles_pages/gtx_780_ti_sli_geforce_review,4.html
800W are enough for an average PC your's is not average is high end.CPU OC,a lot of fans ,hdd and ssd.

Dark Lord of Tech · Dec 23, 2013

I would go up to 1000w unit for your specs with overclocking.

iiNrG · Dec 23, 2013

Thanks, the 2nd GPU isn't gonna be bought for a few months so I think i'll stick with 850w for now then go 1000w at the same time I buy the 2nd GPU, I assume that would cover it?

sosofm · Dec 23, 2013

Yes the 850W are more than enough for you PC for now.

Dark Lord of Tech · Dec 23, 2013

Yes that would cover it , no problems.

If you want future upgrades , nice unit below:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: EVGA SuperNOVA 1000G2 1000W 80+ Gold Certified Fully-Modular ATX Power Supply ($152.99 @ NCIX US)
Total: $152.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-12-23 20:37 EST-0500)

Tier 1 Brands - The Most Powerful And Stable Components On The Market.

Antec Signature
Antec High Current Pro -1200w
Antec HCP Platinum 1kW
Cooler Master V series 700, 850, 1kW
Corsair AX
Enermax Galaxy
Enermax Revolution
EVGA SuperNova G2 1000W and 1300W
Kingwin Lazer Platinum
PCP&C TurboCool
PCP&C Silencer Greater than 610 watt
Sapphire Pure
Seasonic X-Series
Seasonic S12D/M12D
Silverstone ZF (Etasis 85/75/56)
Seventeam ST Greater than 600w (SSI, V2.91)
Silverstone OP/DA Greater than 700 watt
Silverstone ZM
Ultra X3 Greater than 1000 watt
XFX Black Edition
XFX XXX Edition
Zippy/Emacs SSL
Zippy/Emacs GSM
Zippy/Emacs PSL
Zippy/Emacs HG2
Zippy/Emacs HP2

TheDroneGamers · Dec 23, 2013

iiNrG :

When you get the 2nd GPU, I would recommend this PSU: http://www.amazon.com/XFX-PRO1000W-Platinum-Compatible-P11000BELX/dp/B0067G6PA0/ref=sr_1_1?ie=UTF8&qid=1387830083&sr=8-1&keywords=XFX+Proseries+1000W

photonboy · Dec 23, 2013

http://www.reviewstudio.net/1179-asus-gtx-780-ti-directcu-ii-oc-review-best-performance-dead-silent#power-consumption

A single card can use up to 732W for total System Power, however that's a really overclocked 6-core i7. The Asus 780Ti overclocked is using about 373W by itself though so your 850W should be fine, but you wouldn't want any less.

Therefore if we add 850W + 373W we get just over 1200W. I think a quality 1200W is warranted here.

There are a few really good, reasonably priced (near $200) power supplies that handle this and I think you should take your time and do a lot of reading. My quick choices would be one of these:

1) http://pcpartpicker.com/part/rosewill-power-supply-lightning1300

2) http://pcpartpicker.com/part/antec-power-supply-hcp1200

My top choice is the Antec: http://www.techpowerup.com/reviews/Antec/HCP-1200/8.html

"To wrap it up, if you have three or four high-end VGAs and you want the best available PSU money can buy today then you should put the Antec HCP-1200 on top of your list..."

But don't take my word for it, and things may change.

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Is 850 Watts Enough?

iiNrG

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Dark Lord of Tech

sosofm

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Dark Lord of Tech

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iiNrG

Honorable

sosofm

Splendid

Dark Lord of Tech

Retired Moderator

TheDroneGamers

Honorable

photonboy

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