I'm assuming with what you're doing it'll be one or the other at any given time. I think the 650w is probably the most you would need to go for, with the 750w hitting real overkill range no matter what you're doing, and only really coming close at peak power usage of both CPU and GPU. So unless you're dealing with a scenario involving a PBO'd 3900x doing heavy multithreaded work AND an OC'd 2070S both totally pegging out with multiple power-hungry peripherals running, the 750w will not sit in the sweet spot.
And even then, the 3900x doesn't really peak-out until you hit it with heavy multithreaded loads. Even if you're pushing both it's kind of an over/under when it comes to 650/750. okay, maybe barely overshooting it when the CPU is peaking - in that same scenario. 220ish odd watts of an OC'd 2070S and you're pretty much right in the sweet spot at peak. The CPU is now peaking 80-100w because it's mostly boosting individual cores, so I'm officially in a sweet spot, assuming a little margin for everything else. Add another roughly 190w for my 2060 and toss on a gaming workload. Most package power I see running my 3900x with PBO is ~120W. With a 2070S you could go up to 750w if you wanted, but the 650w would be fine and arguably closer to hitting peak efficiency more often. Thank you so much in advance for any advice! Would going with the 750 be a bad thing? There's zero additional cost as I say but would it waste energy? PSU's are the thing I know least about! I'm sorry.
I'm also having a little trouble deciding on which wattage to go for, currently RMx 650 and 750 are the same price, and the X570 boards on PCPARTPICKER complains of having an extra EPS 4 pin which only 750 model has. My budget is £120 and I usually buy from .uk (or Amazon). Unfortunately I haven't built a system in awhile and out of the loop on what is high quality PSU's, I'm currently looking at RMx since it's what I'm already using in another build but am open to others. I won't be overclocking as I need it to be super duper stable, I also won't be gaming on this one. Video Card: RTX 2070 SUPER 8 GB ( I might stick a 1050 Ti in until June/July when I think NVIDIA releases next RTX series)Ĭase Fan: 2x Noctua NF-A14 PWM, 1x Stock Case Fan 140MM Storage: 1x Samsung 970 Evo 500 GB M.2 NVME, 1x Samsung SATA SSD, 1x SATA HDD 7200RPM
Memory: Corsair Vengeance LPX 32 GB (2 x 16 GB) 3200 Motherboard: Gigabyte X570 AORUS PRO ATX ( might change it!) Hello everyone, I hope you're well! I'm building a new system for 3D animation, modelling (animation), sculpting, digital painting, compositing and video rendering.
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