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power consumption of cf 390x

nightninja87
By nightninja87
in Graphics Cards
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ok so me and my friend are talking and we are trying to figure out would 390x crossfire require a 1000 watt power supply or would a 750 watt gold power supply be ok?

specs

4670k 4.0ghz no voltage change

sapphire nitro 390x

msi 390x

2x8gb ddr3

3x7k HDD

1xssd

5 periphals

1 wlan pci card

so i wanna know is my friend right about 750 be fine or would i really need a 850 or a 1000 watt like i thought.

thanks for the help in advance and yes i used the psu calculator three different ones actually

http://outervision.com/b/c4WuQA

psu.png

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A 1000W won't be necessary.

A quality 850W ~ 860W would be more than sufficient WITH some headroom for overclocking.

 

You are looking at about 650W ~ 700W from the wall socket...which is about 600W for the actual system under load.

(Assuming 80 PLUS Gold PUS like the EVGA SuperNOVA 850W G2)

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I would go with an 750W (or 850W) of good quality just to be safe.
It'll give you room to overclock as well.

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  • Author

ok so my friend is right then awesome ill be able to save money then i have a quality psu already that is 750w i do have money to buy a 1000watt or a 850watt and i found one for 100 that is a g2

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4 minutes ago, -rascal- said:

A 1000W won't be necessary.

A quality 850W ~ 860W would be more than sufficient WITH some headroom for overclocking.

 

4 minutes ago, ARikozuM said:

I would go with an 750W (or 850W) of good quality just to be safe.
It'll give you room to overclock as well.

For 390x? Those things are pretty hungry. I would personally go with 1000W just for peace of mind.

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2 minutes ago, ivan134 said:

 

For 390x? Those things are pretty hungry. I would personally go with 1000W just for peace of mind.

Ehh...I'm on the edge of it.

1000W is a bit on the higher side, but still fine.

Too bad there isn't much 900W / 950W PSU's around; literally, 750W >> 850W >> 1000W (or 1050W).

Intel Z390 Rig ( *NEW* Primary )

Intel X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)

  • i7-8086K @ 5.1 GHz
  • Gigabyte Z390 Aorus Master
  • Sapphire NITRO+ RX 6800 XT S.E + EKwb Quantum Vector Full Cover Waterblock
  • 32GB G.Skill TridentZ DDR4-3000 CL14 @ DDR-3400 custom CL15 timings
  • SanDisk 480 GB SSD + 1TB Samsung 860 EVO +  500GB Samsung 980 + 1TB WD SN750
  • EVGA SuperNOVA 850W P2 + Red/White CableMod Cables
  • Lian-Li O11 Dynamic EVO XL
  • Ekwb Custom loop + 2x EKwb Quantum Surface P360M Radiators
  • Logitech G502 Proteus Spectrum + Corsair K70 (Red LED, anodized black, Cheery MX Browns)

AMD Ryzen Rig

  • AMD R7-5800X
  • Gigabyte B550 Aorus Pro AC
  • 32GB (16GB X 2) Crucial Ballistix RGB DDR4-3600
  • Gigabyte Vision RTX 3060 Ti OC
  • EKwb D-RGB 360mm AIO
  • Intel 660p NVMe 1TB + Crucial MX500 1TB + WD Black 1TB HDD
  • EVGA P2 850W + White CableMod cables
  • Lian-Li LanCool II Mesh - White

Intel Z97 Rig (Decomissioned)

  • Intel i5-4690K @ 4.8 GHz
  • ASUS ROG Maximus VII Hero Z97
  • Sapphire Vapor-X HD 7950 EVGA GTX 1070 SC Black Edition ACX 3.0
  • 20 GB (8GB X 2 + 4GB X 1) Corsair Vengeance DDR3 1600 MHz
  • Corsair A50 air cooler  NZXT X61
  • Crucial MX500 1TB SSD + SanDisk Ultra II 240GB SSD + WD Caviar Black 1TB HDD + Kingston V300 120GB SSD [non-gimped version]
  • Antec New TruePower 550W EVGA G2 650W + White CableMod cables
  • Cooler Master HAF 912 White NZXT S340 Elite w/ white LED stips

AMD 990FX Rig (Decommissioned)

  • FX-8350 @ 4.8 / 4.9 GHz (given up on the 5.0 / 5.1 GHz attempt)
  • ASUS ROG Crosshair V Formula 990FX
  • 12 GB (4 GB X 3) G.Skill RipJawsX DDR3 @ 1866 MHz
  • Sapphire Vapor-X HD 7970 + Sapphire Dual-X HD 7970 in Crossfire  Sapphire NITRO R9-Fury in Crossfire *NONE*
  • Thermaltake Frio w/ Cooler Master JetFlo's in push-pull
  • Samsung 850 EVO 500GB SSD + Kingston V300 120GB SSD + WD Caviar Black 1TB HDD
  • Corsair TX850 (ver.1)
  • Cooler Master HAF 932

 

<> Electrical Engineer , B.Eng <>

<> Electronics & Computer Engineering Technologist (Diploma + Advanced Diploma) <>

<> Electronics Engineering Technician for the Canadian Department of National Defence <>

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with

4770k @4.7  with corsair H110

gtx 780 SLI @ 1150, 7012  1x arctic hybrid cooled, 1x asus directcu ii (max TDP of 780 is 250W)

1xSSD

1xSSHD

total 7 fans

 

i pull a max of 580w from the wall, i use a corsair RM750

 

i consider it to be safe, dont want to come even near the 100w headroom i rather stay well away :)

 

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Unless you're going to overvolt the cards/system, a good 850w+ is more than adequate.

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