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Ryzen 5700x3d CPU, AMD AM4 computer processor - $375 (north Appleton)
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5700X3D.
8 cores and lots of cache.
CPU only. Bring your own cooler.
Lives up to the hype. It's the last CPU AM4 will ever need.
Short version: It works great. I'm just downsizing the computer it's been in.
$375 firm. Can deliver to Neenah or so.
It's out of the computer now. I can put it back in and put it and a monitor on a table in the garage to show it works if you want. I'd need some advance notice for that to set it up.
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Long version:
I bought it brand-new a couple or so years ago. It's a 105 TDP CPU so will need a decent cooler for maximum performance. I used it with a typical 120mm air cooler similar to a Hyper 212 but not as good made by DeepCool. Gammaxx 400?
To explain the pictures: One of the most demanding tasks for a CPU is video encoding. I set a 2-hour 4K video to encode on the highest quality settings possible so the encoding would take days. This maxed out all 8 CPU cores at 100% load for 21 hours and 31 minutes when I took the screenshots and figured ok 21 hours is long enough. I also used the computer normally for other things during that time.
The right column in the pictures is the Average over that 21 hours. Average temperature is 67.9C. Average watts is 79 watts. Average 8-core full load MHz is 3,800+. You can see the Maximum column shows the max core boost at 4,142 MHz. So, the CPU can boost that high on lighter loads.
Just trying to show it works fine and looks good even when running 100% load on all cores for 21 hours. And see the average voltage at 100% load for 21 hours is only 1.129v.
The max safe temp is 90C. It's designed to be able to run at 90C all day. That's safe, but to stay much lower than that, and to save 10-15 or so watts at full load, I set a max watts limit of 80 watts. That let the CPU still max boost on lighter loads, and with heavy loads using all cores 100% it stayed cooler, used 15 or so fewer watts, and the full load MHz was only a little lower. It can boost higher at full load than in the pictures, (as seen from the Maximum column), but this was more of a sweet spot for temp and watts.