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GTX 970 SLI. Is 1000W enough?

Lalorm
By Lalorm
in Power Supplies
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Posted

Hi Guys,

 

I'm planning a new build system for which will double as a gaming system.  For the graphics, I'm planning to use two GTX 970 in SLI mode.

 

The system so far looks as follows...

 

Intel i7 4790k

MSI Z97 Gaming 5 MBD

32GB Kingston HyperX Savage DDR3

2 x SSD running in Raid 1

2 x 2TB SSHD running in Raid 1

Bluray Optical drive

 

I've been looking at the following PSUs...

EVGA 1300W Supernova G2 (Gold) €187

EVGA 1000W Supernova P2 (Platinum) €184

 

There's nothing in the price between them, but I'm thinking about the cost to run them and if I need 1300W or not.  If 1000W is enough and it saves me a bit of cash on the power bills...

 

What do you guys think?

Regards

M

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700W is enough for that system...

[AMD Athlon 64 Mobile 4000+ Socket 754 | Gigabyte GA-K8NS Pro nForce3 | OCZ 2GB DDR PC3200 | Sapphire HD 3850 512MB AGP | 850 Evo | Seasonic 430W | Win XP/10]

 

 

 

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the EVGA 750W G2 is good enough, 850W G2 if you want some headroom

                                                                                                                                                      

CPU: Intel I7-4790k | MOBO: Asus Sabertooth Z97 Mark 1 | Ram: Corsair Vengance 32GB 1600hz | GPU: EVGA GTX980 Reference

PSU: Corsair EVGA G2 850W  | SSD: Intel 730 Series 480GB, Kingston SSDNow V300 120GB | HDD: WD Black 1TB

 CPU Cooler: Corsair H105 | Case: Corsair 760T (White) | Peripherals: (2)Asus VS247H-P, Corsair M65, Corsair K70 RGB w/ Brown Switches

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For 2-way SLI a 650W PSU is enough though I recommend the EVGA G2 750W instead. For 3-way SLI you could most likely get the EVGA G2 850W and still have more than enough

RIG: I7-4790k @ 4.5GHz | MSI Z97S SLI Plus | 12GB Geil Dragon RAM 1333MHz | Gigabyte G1 Gaming GTX 970 (1550MHz core/7800MHz memory) @ +18mV(Maxed out at 1650/7800 so far) | Corsair RM750 | Samsung 840 EVO 120GB, 1TB Seagate Barracuda | Fractal Design Arc Midi R2 (Closed) | Sound Blaster Z                                                                                                                        Getting: Noctua NH-D15 | Possible 250GB Samsung 850 Evo                                                                                        Need a console killer that actually shits on every console? Here you go (No MIR/Promo)

This is why you should not get an FX CPU for ANY scenario other than rendering on a budget http://linustechtips.com/main/topic/286142-fx-8350-r9-290-psu-requirements/?p=3892901 | http://linustechtips.com/main/topic/266481-an-issue-with-people-bashing-the-fx-cpus/?p=3620861

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600 whats is probably enough. Go with 750 to be sure. 1000 is way beyond overkill.

~non cogito, ergo non sum?~

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Yup 1000w is more than enough. You could probably get away with a smaller one, but if you're going to overclock a fair bit I'd just keep the 1000w.

CPU: Ryzen 9 5900 Cooler: EVGA CLC280 Motherboard: Gigabyte B550i Pro AX RAM: Kingston Hyper X 32GB 3200mhz

Storage: WD 750 SE 500GB, WD 730 SE 1TB GPU: EVGA RTX 3070 Ti PSU: Corsair SF750 Case: Streacom DA2

Monitor: LG 27GL83B Mouse: Razer Basilisk V2 Keyboard: G.Skill KM780 Cherry MX Red Speakers: Mackie CR5BT

 

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Monitor: LG 29WK500 Mouse: G.Skill MX780 Keyboard: G.Skill KM780 Cherry MX Red

 

Budget Rig 1 - Sold For $750 Profit

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Monitor: Dell P2214H x2 Mouse: Logitech MX Master Keyboard: G.Skill KM780 Cherry MX Red

 

 

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Posted

Much more than enough.

 

Based on this very helpful thread: http://linustechtips.com/main/topic/199255-how-many-watts-do-i-need-check-here/

 

800w is recommend for a maxwell SLI build and that's probably to support two 980's. 

800W for Maxwell 2-way SLI?

 

@Aniallation Please tell me you are joking that is stupid overkill for 2 and 850W is more like it for 3-way

RIG: I7-4790k @ 4.5GHz | MSI Z97S SLI Plus | 12GB Geil Dragon RAM 1333MHz | Gigabyte G1 Gaming GTX 970 (1550MHz core/7800MHz memory) @ +18mV(Maxed out at 1650/7800 so far) | Corsair RM750 | Samsung 840 EVO 120GB, 1TB Seagate Barracuda | Fractal Design Arc Midi R2 (Closed) | Sound Blaster Z                                                                                                                        Getting: Noctua NH-D15 | Possible 250GB Samsung 850 Evo                                                                                        Need a console killer that actually shits on every console? Here you go (No MIR/Promo)

This is why you should not get an FX CPU for ANY scenario other than rendering on a budget http://linustechtips.com/main/topic/286142-fx-8350-r9-290-psu-requirements/?p=3892901 | http://linustechtips.com/main/topic/266481-an-issue-with-people-bashing-the-fx-cpus/?p=3620861

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Evga supernova g2 750W might be all you need for a very long time. I it can sli 2 980's perfectly fine so even with 970's you have plenty of headroom and the psu is the best you can get for the money. It also has a 10 year warranty that does not even make sense. 

Ryzen 3700x -Evga RTX 2080 Super- Msi x570 Gaming Edge - G.Skill Ripjaws 3600Mhz RAM - EVGA SuperNova G3 750W -500gb 970 Evo - 250Gb Samsung 850 Evo - 250Gb Samsung 840 Evo  - 4Tb WD Blue- NZXT h500 - ROG Swift PG348Q

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Hi Guys,

 

I'm planning a new build system for which will double as a gaming system.  For the graphics, I'm planning to use two GTX 970 in SLI mode.

 

The system so far looks as follows...

 

Intel i7 4790k

MSI Z97 Gaming 5 MBD

32GB Kingston HyperX Savage DDR3

2 x SSD running in Raid 1

2 x 2TB SSHD running in Raid 1

Bluray Optical drive

 

I've been looking at the following PSUs...

EVGA 1300W Supernova G2 (Gold) €187

EVGA 1000W Supernova P2 (Platinum) €184

 

There's nothing in the price between them, but I'm thinking about the cost to run them and if I need 1300W or not.  If 1000W is enough and it saves me a bit of cash on the power bills...

 

What do you guys think?

Regards

M

500 watt is enough

JJtI6q0.jpg

msi z97m gaming - i5 4690k @4.4ghz 1.2V - corsair h110 - powercolor r9 290x pcs+ - 8GB corsair vengeance dual channel @2133mhz - thermaltake smart power se 730watts - intel 530 series 240GB ssd - seagate 1tb 7200rpm - corsiar obsidian 350D - 2x enermax tb silence 140mm - logitech x-530 - sony mdr xb600 - medion 24'' 1080P - cm storm quickfire tk white edition with cherry mx red - cheap but awesome mouse #GloriousPaintMasterRace

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^that.

Ryzen 3700x -Evga RTX 2080 Super- Msi x570 Gaming Edge - G.Skill Ripjaws 3600Mhz RAM - EVGA SuperNova G3 750W -500gb 970 Evo - 250Gb Samsung 850 Evo - 250Gb Samsung 840 Evo  - 4Tb WD Blue- NZXT h500 - ROG Swift PG348Q

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  • Author

Thanks for the lightning fast replies.  I'm planning to do some overclocking, so would that have much of an impact on the power consumption?  

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800W for Maxwell 2-way SLI?

 

@Aniallation Please tell me you are joking that is stupid overkill for 2 and 850W is more like it for 3-way

Well, 800w for a 2 way overclocked maxwell build. He could go lower but I'm assuming he will overclock the cards.

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Well, you all just saved me around 80 euro.  So thats the 2nd SSD sorted also. :D

 

Cheers.

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800W for Maxwell 2-way SLI?

 

@Aniallation Please tell me you are joking that is stupid overkill for 2 and 850W is more like it for 3-way

If you actually read the page properly, you would see that it says 800W for two Maxwell cards that are overclocked, and by overclocked, means highest possible overclock that could be achieved based on limits of the silicon, as well as overvolting. You should know by now that Maxwell cards overclock like hell, with many people pushing the 1.4GHz mark without custom cooling. With an averages setup, it says that 650W is recommended (not bare minimum either).

 

People on this forum really need to start taking time to read things properly before jumping on to prove someone wrong.

"Rawr XD"

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The TDP for a 970 is 145W. For a 980 it's 165W. That should give you an idea of how overkill 1000W is.

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If you actually read the page properly, you would see that it says 800W for two Maxwell cards that are overclocked, and by overclocked, means highest possible overclock that could be achieved based on limits of the silicon, as well as overvolting. You should know by now that Maxwell cards overclock like hell, with many people pushing the 1.4GHz mark without custom cooling. With an averages setup, it says that 650W is recommended (not bare minimum either).

 

People on this forum really need to start taking time to read things properly before jumping on to prove someone wrong.

Overclocking/volting a card does not make 2 970's (That together consume about 325-350 normally) use well over 125W more per card.

RIG: I7-4790k @ 4.5GHz | MSI Z97S SLI Plus | 12GB Geil Dragon RAM 1333MHz | Gigabyte G1 Gaming GTX 970 (1550MHz core/7800MHz memory) @ +18mV(Maxed out at 1650/7800 so far) | Corsair RM750 | Samsung 840 EVO 120GB, 1TB Seagate Barracuda | Fractal Design Arc Midi R2 (Closed) | Sound Blaster Z                                                                                                                        Getting: Noctua NH-D15 | Possible 250GB Samsung 850 Evo                                                                                        Need a console killer that actually shits on every console? Here you go (No MIR/Promo)

This is why you should not get an FX CPU for ANY scenario other than rendering on a budget http://linustechtips.com/main/topic/286142-fx-8350-r9-290-psu-requirements/?p=3892901 | http://linustechtips.com/main/topic/266481-an-issue-with-people-bashing-the-fx-cpus/?p=3620861

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I haz an Antec HCP 1300 watt for my SLI 970s!!!

(because it was £149).

But it actually died when I installed them and now it needs replacing. I have my previous 850w XFX black edition installed atm and its more than enough.

Linus is my fetish.

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