4 ms·
Zen's idle performance is absolutely atrocious due to the I/O die that constantly draws 20 watts. Pretty sure Intel's stuff in total draws less than half that.
by selectodude 4y ago
Zen's idle performance is absolutely atrocious due to the I/O die that constantly draws 20 watts. Pretty sure Intel's stuff in total draws less than half that.
- Melatonic 4y agoIntel invested a crapload of money in laptop CPU's and low idle which is one of the reason they dominated that market for so long - I would guess that it bled over into desktop as well.
- sliken 4y agoAre you talking about last years zen3? That was a common complaint. From https://www.tweaktown.com/reviews/10195/amd-ryzen-5-7600x-zen-4-cpu/index.html https://www.tweaktown.com/reviews/10195/amd-ryzen-5-7600x-ze... "Power consumption is measured directly from the dual eight-pin connections. At peak, the 7600X pulls an impressive 130W, and during idle, it was down to 18w." Sounds pretty good, especially considering its at the "dual eight-pin" power supply connection. Not laptop class, but pretty good for a high performance desktop.
- neogodless 4y agoAnecdotally, my Zen 3 5900X rated at 105W TDP, sitting kind of idle (with a dozen or so programs open, task manager showing 1% usage) is drawing about 11W.
- sliken 4y agoI do seem to recall a AGESA update (motherboard firmware) that did managed to reduce the IOD power usage when idle. Sad that it was months after most of the reviews came out.
- selectodude 4y ago12900K idles at 8.5 watts. 18 watts is awful.
- sliken 4y agoMeasured where? At the power supply? Not sure what exactly is included in the 18 watts via the power supply connector. Wasn't sure if it was all CPU, or CPU+Dimms, or maybe the entire motherboard.
- selectodude 4y agoThe 8 pin connector goes to the CPU. The big ATX 12V connector goes to everything else.
- fomine3 4y agoFor idle power consumption, watt usage from wall is better measurement.