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.

  • webuge@lemmy.dbzer0.comEnglish
    2·
    1 year ago

    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.

    • nixx@feddit.nlOPEnglish
      1·
      1 year ago

      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.comEnglish
        1·
        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?

        • nixx@feddit.nlOPEnglish
          1·
          1 year ago

          QHD and the monitor is set to 165z but I’m not dead set on hitting that amount of fps consistently. The GTX 1080 runs Baldur’s Gate at some 53 fps in outdoor locales which is a solid performance for its age.

          • webuge@lemmy.dbzer0.comEnglish
            1·
            1 year ago

            I think 7900xt has more horsepower for this, also have you seen the new 7700xt and 7800xt that AMD just announced? They will be released in September 6th I think.

            • nixx@feddit.nlOPEnglish
              1·
              1 year ago

              More horsepower, yes. Fits within 650W per recommendation, no. I read the AMD announcement earlier and I’m interested in what the 7800 has to offer vs 4070 (and the price ofc).