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So i know for a fact that NVIDIA is saying that a 750w psu is recommended for the rtx 3080 but i was wondering if it's actually enough so if anyone with experience or with the knowledge could tell me like how much overhead do u calculate for with a 750w psu with a 3080 or is it just really really tight with a 750w psu?

My System: Asus X570-P | Ryzen 7 2700x | AMD Wraith Prism | GTX 1070 8gb | G.Skill Ripjaws 3600mhz CL16 | Corsair RM750X | Fractal Define R6 TG

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I'm using a 650W PSU and all is good for now. I'm not overclocking neither GPU nor CPU.

My System: i7-8700 // Noctua NH-U9B SE2 CPU Cooler + Noctua 2X120mm 2X140mm system fans// Gigabyte Z370 HD3// 2x8GB DDR4-3000 Corsair // Asus TUF 3080 10GB // Itek Replay2.0 Modified for airflow // Corsair RM650x Gold modular // 32GB M.2 Optane + 2X120GB Kingston A400 + 2X1TB WD10EZEX 7200 RPM +1X USB3.0 External 6TB 5400RPM // Displays: LG 27GL850 IPS 1440p 144Hz + Philips 273V5LHAB TN 1080p 60Hz + Acer ka220hq TN 1080p 60Hz // https://pcpartpicker.com/list/dL42q3

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650w is already enough in most cases unless you start overclocking a 9th or 10th gen Intel CPU, 750w is more than enough in most scenarios

Intel Core i5-8400 / ASRock Z370 Pro 4 / Hyper 212 Evo / 16GB DDR4 @3000 / MSI RTX 2070 Armor / Corsair RM550x / SanDisk 250GB / 1TB WD HDD / Fractal Design Define R4

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I may buy a 3080 STRIX, it has 3 x 8 pin, my PSU is a 750W Focus Plus, only got 2 x 8+8 pins.

On Asus' website they say a 850W PSU is needed.....

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51 minutes ago, Phas3r said:

only got 2 x 8+8 pins

So that's 4 8-pins in total, enough for the 3080 Strix or any other GPU.

Intel Core i5-8400 / ASRock Z370 Pro 4 / Hyper 212 Evo / 16GB DDR4 @3000 / MSI RTX 2070 Armor / Corsair RM550x / SanDisk 250GB / 1TB WD HDD / Fractal Design Define R4

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11 hours ago, Medicate said:

So that's 4 8-pins in total, enough for the 3080 Strix or any other GPU.

Just 2 wires from the PSU.

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1 hour ago, Phas3r said:

Just 2 wires from the PSU.

As long as it's not a really cheap PSU, If a cable has 2x8-pins running through one cable, then that cable is also rated to carry 2x8-pin power through it. The PSU cables are designed to carry that load, it's not going to damage anything or overheat or catch on fire.

Intel Core i5-8400 / ASRock Z370 Pro 4 / Hyper 212 Evo / 16GB DDR4 @3000 / MSI RTX 2070 Armor / Corsair RM550x / SanDisk 250GB / 1TB WD HDD / Fractal Design Define R4

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3 hours ago, Medicate said:

As long as it's not a really cheap PSU, If a cable has 2x8-pins running through one cable, then that cable is also rated to carry 2x8-pin power through it. The PSU cables are designed to carry that load, it's not going to damage anything or overheat or catch on fire.

It's a year old Seasonic focus plus gold 750W

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Just now, Phas3r said:

It's a year old Seasonic focus plus gold 750W

I’d suggest starting a new thread in the Cases and Power Supplies sub forum. If it remember correctly, that had some issues with extremely high power draw GPUs. 

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in that case i think im fine with my Corsair RM750x 

My System: Asus X570-P | Ryzen 7 2700x | AMD Wraith Prism | GTX 1070 8gb | G.Skill Ripjaws 3600mhz CL16 | Corsair RM750X | Fractal Define R6 TG

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