this post was submitted on 25 Aug 2023
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GPU Upgrade & Manufacturer Recommended PSU W (feddit.nl)
submitted 1 year ago by nixx1338@feddit.nl to c/pcmasterrace@lemmy.world
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I'm looking into upgrading the GPU of my 2019 rig (3700x) and I'm wondering how necessary it is to follow the manufacturer recommendations on PSU. Originally I decided not to upgrade the 8GB GTX 1080 because it simply sufficed my needs and bought a 650W PSU unit.

Fast forward to 2023 it is apparently difficult to pick a GPU which officially requires <= 650W. I'm looking for an acceptable price/performance/longevity combo and the only option right now appears to be the 4070 (not Ti). If PSU was not an issue I probably would have gone for 7900 XT instead, however paying extra 150 EUR for a new PSU on top of that is silly (let alone rewiring everything). PC Part Picker tells me I have some 70W to spare after installing a 340W Sapphire 7900 XT. I'm also limited by 330cm clearance but that's less of an issue.

Any thoughts? Thank you.

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[–] webuge@lemmy.dbzer0.com 2 points 1 year ago (1 children)

It depends on the quality of your power supply. If it is from tier A or B from this list https://cultists.network/140/psu-tier-list/ I think the 7900 XT will work with no problem. But I will would look to upgrade the PSU when you upgrade your platform (CPU + Motherboard + RAM) since I believe this CPU would hold you back a little.

[–] nixx1338@feddit.nl 1 points 1 year ago (1 children)

https://nl.pcpartpicker.com/list/yxqM89

It's a Corsair RM650x (2018) 650 W so I'm not very concerned about the quality. It does make sense to simply upgrade the whole thing but then we're talking ~2000 EUR instead of 600-900 for the GPU alone. Choices.

[–] webuge@lemmy.dbzer0.com 0 points 1 year ago

I think you should be fine with a 7900 XT them. In which resolution are you playing? Do you want go above 60FPS?