Question Will my existing 750w PSU be okay for 9070 XT ?

[exceed_7]

As title says i'm looking to buy an XFX Swift AMD Radeon RX 9070 XT Gaming White 16GB GDDR6 GPU.
In the details it recommends an 800w PSU, Since I wanna undervolt it by -80mV, is my 750w PSU gonna be fine then? I just wanna add that my CPU isn't very power-hungry either as it's the 10900 non-k version.

 

[Darkbreeze]

What is the EXACT model of your power supply?

 

[CountMike]

As title says i'm looking to buy 9070 XT, XFX Radeon RX 9070 XT Swift Gaming White 16GB GDDR6 to be exact. In the details it recommends 800w psu, since i wanna undervolt it by -80mV is my 750 psu gonna be fine then? I just wanna add that my cpu isn't very hungry either as it is 10900 non-k version.

PSUs are rated by maximum continuous load and you don't want to do that for long time, 75% of that at most. That GPU draws up to 304W and rest of system is probably less than 400 so in theory real 750W should be enough. I wrote "real 750w" because many PSUs can't sustain full power for long (overheats and becomes unstable) so make and model is important.

 

[ohio_buckeye]

You’re spending hundreds on a new 9070xt and then skimping on the part that could fry your new card…. Do what you want but the better idea is to replace your power supply with a better unit or get a lower power card. You might consider the 9070 non xt.

But I won’t recommend what you said in the opening post, especially not knowing what power supply you have. I always like having a little extra headroom on the power supply so you aren’t running at it’s maximum all the time.

 

[exceed_7]

What is the EXACT model of your power supply?

Adata XPG Core Reactor 750W 80+ GOLD

And here's rest as of today

• Case: Lian Li 011 Dynamic
• Motherboard: ASRock Z490 STEEL LEGEND
• CPU: Intel Core i9-10900
• GPU: Gigabyte GeForce RTX 3070 GAMING OC rev 1.0
• AIO: Corsair iCUE H150i ELITE CAPELLIX White 3x120mm
• RAM: ADATA XPG Spectrix D60G 32GB (4x8GB) DDR4 3200MHz CL16
• SSD: Crucial MX500 1TB Sata III

 

[beyondlogic]

Adata XPG Core Reactor 750W 80+ GOLD

And here's rest as of today

• Case: Lian Li 011 Dynamic
• Motherboard: ASRock Z490 STEEL LEGEND
• CPU: Intel Core i9-10900
• GPU: Gigabyte GeForce RTX 3070 GAMING OC rev 1.0
• AIO: Corsair iCUE H150i ELITE CAPELLIX White 3x120mm
• RAM: ADATA XPG Spectrix D60G 32GB (4x8GB) DDR4 3200MHz CL16
• SSD: Crucial MX500 1TB Sata III

Short answer no at least a 800w is minimum according to there website

Would not run on anything less then that

https://www.xfxforce.com/shop/xfx-swift-amd-radeon-rx-9070xt-triple-fan-gaming-edition
As Ohio buckeye has already stated do not skimp it's a good way to have a paper weight of a system