Lenovo ThinkStation P620 Review: Ryzen Threadripper PRO 5995WX Beast

Power, Thermals, and Noise

Under a full CPU load (Blender, five consecutive runs of the Classroom render test), the highest number I saw was 461 watts at the wall. 435 watts was a typical draw under CPU load, with lighter workloads under 400 watts, total. When the graphics card was doing most of the work, the power draw topped out at 501 watts at the wall.

As to thermals, I focused on the processor here, as this was cooled using a Lenovo solution, and the NVIDIA graphics card used its own stock cooling. The Threadripper PRO 5995WX is a very power-hungry part, and when all cores were stressed for a while (the same five consecutive Blender Classroom tests from the power draw testing) average core temperatures hit 75.3 C (~17 C ambient).

As to noise, under full CPU load the system stayed below 40 dBA, with the highest observed noise level at 39.3 dBA with the meter positioned just 12 inches from the front panel. I was a bit worried when I saw that the CPU fans were only 80 mm (and the case fans aren’t much bigger), but the system is well balanced and the fans don’t spin faster than necessary.

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