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I thought the idle consumption difference was much larger than 15 W. Do you have any links to reliable benchmarks?
by nextos 3y ago
I thought the idle consumption difference was much larger than 15 W. Do you have any links to reliable benchmarks?
- adrian_b 3y agoI do not remember now, but there have been a large number published. The wall plug idle power consumption that I have seen published for recent Intel-based desktops was usually around 30 to 35 W, about the same as of the older Kaby Lake or Coffee Lake based computers that I have. The wall plug idle power consumption of Ryzen-based desktops, both as published and also valid for a couple of Ryzens that I use, is about 40 W to 50 W. (The idle Ryzen cores consume a negligible total power of less than 1 W, but the I/O die consumes 20 to 30 W, even when idle.) The desktops that have GPU cards have higher idle power consumptions than these. The (well-designed) small computers like Intel NUC or similar, which use mobile CPUs, have a wall plug idle power consumption of 5 to 10 W, regardless whether they use Intel Core or AMD Ryzen. When the idle power consumption is a concern, the real solution is to use a small computer with a volume of less than 1 liter and a mobile CPU as the workstation (there are now models with Ryzen 9 7940HS or Intel Core i9-13900H, which are more powerful than most big desktops from just a few years ago), and to use big desktop computers only as servers that sleep when they are not used.