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Would A Corsair CX750 Power Supply Be Enough For An RTX 3080?

Hi Guys,

I am heavily considering upgrading to an Asus TUF 3080 after all the teething issues with crashes and stock shortages etc subside etc. but I am wondering if my current systems PSU will be up to spec to handle a card that draws so many Watts. I currently have a Corsair CX750 Power Supply in my PC, which has been more than enough for my i7-9700k and RTX 2060 Super, however hearing about all the issues with Power Supplies etc people are having, I am a little worried that getting an RTX 3080 and using that with my current PSU might be a bad idea if it ends up running the power supply at its maximum rated power delivery a lot of the time, and might causes crashes etc.

 

Would you guys be able to let me know if you think it would be alright using that Power Supply, or do you think I should upgrade to a better rated 850w PSU instead, as recommended by NVIDIA? And also as a side question, would an i7-9700k bottleneck a 3080?

Link to my PSU: https://www.cnet.com/products/corsair-cx750-power-supply-750-watt/

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Yes its enough and the cpu will probably only bottleneck your graphics card only when you're playing at or below 1080p. Also Nvidia on their website, or at least during the reveal, recommended a 750w psu and not an 850w psu and that was with a 10900k

Quote me for a reply, React if I was helpful, informative, or funny

 

AMD blackout rig

 

cpu: ryzen 5 3600 @4.4ghz @1.35v

gpu: rx5700xt 2200mhz

ram: vengeance lpx c15 3200mhz

mobo: gigabyte b550 pro 

psu: cooler master mwe 650w

case: masterbox mbx520

fans:Noctua industrial 3000rpm x6

 

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Which CX is it, grey or green?

 

I know the old variants were green and honestly straight up trash for high gaming pcs cause of power delivery 

Spoiler

 

LTT's Fastest single core CineBench 11.5/15 score on air with i7-4790K on air

Main Rig

CPU: i7-4770K @ 4.3GHz 1.18v, Cooler: Noctua NH-U14S, Motherboard: Asus Sabertooth Mark 2, RAM: 16 GB G.Skill Sniper Series @ 1866MHz, GPU: EVGA 980Ti Classified @ 1507/1977MHz , Storage: 500GB 850 EVO, WD Cavier Black/Blue 1TB+1TB,  Power Supply: Corsair HX 750W, Case: Fractal Design r4 Black Pearl w/ Window, OS: Windows 10 Home 64bit

 

Plex Server WIP

CPU: i5-3570K, Cooler: Stock, Motherboard: ASrock, Ram: 16GB, GPU: Intel igpu, Storage: 120GB Kingston SSD, 6TB WD Red, Powersupply: Corsair TX 750W, Case: Corsair Carbide Spec-01 OS: Windows 10

 

Lenovo Legion Laptop

CPU: i7-7700HQ, RAM: 8GB, GPU: 1050Ti 4GB, Storage: 500GB Crucial MX500, OS: Windows 10

 

 

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32 minutes ago, IAmZenith said:

This is the old CX PSU from 2010-11 (IIRC). It's not a great unit for modern systems, so an upgrade might be a good idea. 650-750 is about what you'll want.

 

I'll link you a pretty good unit I can vouch for.

We have a NEW and GLORIOUSER-ER-ER PSU Tier List Now. (dammit @LukeSavenije stop coming up with new ones)

You can check out the old one that gave joy to so many across the land here

 

Computer having a hard time powering on? Troubleshoot it with this guide. (Currently looking for suggestions to update it into the context of <current year> and make it its own thread)

Computer Specs:

Spoiler

Mathresolvermajig: Intel Xeon E3 1240 (Sandy Bridge i7 equivalent)

Chillinmachine: Noctua NH-C14S
Framepainting-inator: EVGA GTX 1080 Ti SC2 Hybrid

Attachcorethingy: Gigabyte H61M-S2V-B3

Infoholdstick: Corsair 2x4GB DDR3 1333

Computerarmor: Silverstone RL06 "Lookalike"

Rememberdoogle: 1TB HDD + 120GB TR150 + 240 SSD Plus + 1TB MX500

AdditionalPylons: Phanteks AMP! 550W (based on Seasonic GX-550)

Letterpad: Rosewill Apollo 9100 (Cherry MX Red)

Buttonrodent: Razer Viper Mini + Huion H430P drawing Tablet

Auralnterface: Sennheiser HD 6xx

Liquidrectangles: LG 27UK850-W 4K HDR

 

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We have a NEW and GLORIOUSER-ER-ER PSU Tier List Now. (dammit @LukeSavenije stop coming up with new ones)

You can check out the old one that gave joy to so many across the land here

 

Computer having a hard time powering on? Troubleshoot it with this guide. (Currently looking for suggestions to update it into the context of <current year> and make it its own thread)

Computer Specs:

Spoiler

Mathresolvermajig: Intel Xeon E3 1240 (Sandy Bridge i7 equivalent)

Chillinmachine: Noctua NH-C14S
Framepainting-inator: EVGA GTX 1080 Ti SC2 Hybrid

Attachcorethingy: Gigabyte H61M-S2V-B3

Infoholdstick: Corsair 2x4GB DDR3 1333

Computerarmor: Silverstone RL06 "Lookalike"

Rememberdoogle: 1TB HDD + 120GB TR150 + 240 SSD Plus + 1TB MX500

AdditionalPylons: Phanteks AMP! 550W (based on Seasonic GX-550)

Letterpad: Rosewill Apollo 9100 (Cherry MX Red)

Buttonrodent: Razer Viper Mini + Huion H430P drawing Tablet

Auralnterface: Sennheiser HD 6xx

Liquidrectangles: LG 27UK850-W 4K HDR

 

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6 minutes ago, Energycore said:

This is the old CX PSU from 2010-11 (IIRC). It's not a great unit for modern systems, so an upgrade might be a good idea. 650-750 is about what you'll want.

 

I'll link you a pretty good unit I can vouch for.

Totally agree with this! With such an expensive GPU, I would definitely upgrade your psu

Spoiler

 

LTT's Fastest single core CineBench 11.5/15 score on air with i7-4790K on air

Main Rig

CPU: i7-4770K @ 4.3GHz 1.18v, Cooler: Noctua NH-U14S, Motherboard: Asus Sabertooth Mark 2, RAM: 16 GB G.Skill Sniper Series @ 1866MHz, GPU: EVGA 980Ti Classified @ 1507/1977MHz , Storage: 500GB 850 EVO, WD Cavier Black/Blue 1TB+1TB,  Power Supply: Corsair HX 750W, Case: Fractal Design r4 Black Pearl w/ Window, OS: Windows 10 Home 64bit

 

Plex Server WIP

CPU: i5-3570K, Cooler: Stock, Motherboard: ASrock, Ram: 16GB, GPU: Intel igpu, Storage: 120GB Kingston SSD, 6TB WD Red, Powersupply: Corsair TX 750W, Case: Corsair Carbide Spec-01 OS: Windows 10

 

Lenovo Legion Laptop

CPU: i7-7700HQ, RAM: 8GB, GPU: 1050Ti 4GB, Storage: 500GB Crucial MX500, OS: Windows 10

 

 

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i would prefer seasonic

Main: AMD Ryzen 7 2700, Nvidia RTX 2070 Super, 16 GB 3200MHz CL15 DDR4, Windows 10 2009

Laptop: Intel Core i5 3230m, Nvidia NVS 5200m, 8 GB 1600MHz DDR3, MacOS 11 Big Sur OC

Secondary Laptop: Celeron 3205u, Nvidia 820m, 8 GB 1600MHz DDR3L, Brunch Chrome OS r86

Hmmm Laptop: Pentium M 1.6GHz, iGPU, 2 GB 800MHz DDR2, Windows 7 SP1

 

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