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Power supply for 280x crossfire?

Hey guys, just wondering if i was to crossfire two 280x, what wattage would i need?

 

All help is appreciated! 

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Hey guys, just wondering if i was to crossfire two 280x, what wattage would i need?

 

All help is appreciated! 

Get a 750 G2. Done.

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Any 850 watt PSU from EVGA, Corsair, Seasonic, XFX, Antec, Silverstone, Coolermaster, Superflower, or be quiet!

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High quality 750w should do it.

800+ If you want headroom.

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No more than 750, they use ~250W/card so idk why people are saying 850W... lol

Even with CPU, etc added in, still will be around 600W maybe more maybe less

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Hey guys, just wondering if i was to crossfire two 280x, what wattage would i need?

Technically, a very solid 650W will handle it, but of course go for 750W for the headroom, that'd be the sweet spot.

 

power-consumption.jpg

 

500x1000px-LL-293c4e4a_46280.png

 

4515_42_sapphire_radeon_hd_7970_3gb_vide

 

 

 

Get a 750 G2. Done.

G2 isn't always the answer, it's budget dependent. If you don't need full modularity, 80+ Gold, or hybrid fan mode (honestly, nobody needs those things), then the 750 B2 is just as good of a performer, for quite a bit cheaper.

"Rawr XD"

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thx everyone for ur help, if i do decide to go with the crossfire, i will most likely go for a 750 watt, and also the cpu is a 4.?ghz g3258, and most likely a 4690k later down the line when i have more money.

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Technically, a very solid 650W will handle it, but of course go for 750W for the headroom, that'd be the sweet spot.

 

power-consumption.jpg

 

500x1000px-LL-293c4e4a_46280.png

 

4515_42_sapphire_radeon_hd_7970_3gb_vide

 

 

 

G2 isn't always the answer, it's budget dependent. If you don't need full modularity, 80+ Gold, or hybrid fan mode (honestly, nobody needs those things), then the 750 B2 is just as good of a performer, for quite a bit cheaper.

It's a go-to pour moi, I understand not everybody needs one.

|PSU Tier List /80 Plus Efficiency| PSU stuff if you need it. 

My system: PCPartPicker || For Corsair support tag @Corsair Josephor @Corsair Nick || My 5MT Legacy GT Wagon ||

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thx everyone for ur help, if i do decide to go with the crossfire, i will most likely go for a 750 watt, and also the cpu is a 4.?ghz g3258, and most likely a 4690k later down the line when i have more money.

Upgrade your CPU before you CrossFire. G3258 already bottlenecks one 280X, never mind two.

"Rawr XD"

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500W should be plenty! :D

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Apple A4 - Apple iPod touch (4th generation)
Apple A5 - Apple iPod touch (5th generation)
Apple A9 - Apple iPhone 6s Plus
HiSilicon Kirin 810 (T.S.M.C. 7nm) - Huawei P40 Lite / Huawei nova 7i
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Mediatek MT6592M (T.S.M.C 28nm) - my|phone my32 (yellow)
Mediatek MT6735 (T.S.M.C 28nm) - HMD Nokia 3 Dual SIM
Mediatek MT6737 (T.S.M.C 28nm) - Cherry Mobile Flare S6
Mediatek MT6739 (T.S.M.C 28nm) - my|phone myX8 (blue)
Mediatek MT6739 (T.S.M.C 28nm) - my|phone myX8 (gold)
Mediatek MT6750 (T.S.M.C 28nm) - honor 6C Pro / honor V9 Play
Mediatek MT6765 (T.S.M.C 12nm) - TECNO Pouvoir 3 Plus
Mediatek MT6797D (T.S.M.C 20nm) - my|phone Brown Tab 1
Qualcomm MSM8926 (T.S.M.C. 28nm) - Microsoft Lumia 640 LTE
Qualcomm MSM8974AA (T.S.M.C. 28nm) - Blackberry Passport
Qualcomm SDM710 (Samsung 10nm) - Oppo Realme 3 Pro

 

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I have 7970's (280x) in crossfire and used a Corsair HX750 to power them, and it wasn't enough to power them when they got to full load. Now that I have a 850w PSU to power them, my system has been running great. So, I suggest getting an 850w over a 750.

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