Idle power usage for Intel Xeon Silver Models

[fmatthew5876]

Has anyone done an independent study of the differences in idle power usage for the different Intel Xeon Silver chips on the same hardware platform?

In particular I'm interested to know if the 4108 has a large enough reduction in power usage to make that a compelling factor when compared to the 4110 and 4114.

Thanks!

 

[Patrick]

At idle, low single digit difference in idle power consumption (W)

 

[bitrot]

As Patrick said, there isn't much of a difference between them in idle.

Max power consumption is a different matter, however. Taken from the STH reviews of the Xeon Silver SKUs (all measurements done with the same setup - Supermicro X11SPH-nCTF board etc.):

Silver 4116: 134W
Silver 4114: 101W
Silver 4110: 100W
Silver 4108: 93W
Silver 4112: 86W

When you take the benchmark results into consideration, the Silver 4114 seems to be the the sweet spot price/performance/power consumption wise. Hence I bought it myself (and a 4108 for a backup system).

 

[fmatthew5876]

Max power of course makes sense with more cores.

I decided on 4114 as well for the same reasons.

 

[Patrick]

Adding my own theory here, I do think there is some variation on the max power consumption of different chips of the same model. E.g. if you bought 10x Silver 4110's, put them in the same system and benchmarked them there would be some differences. That 85W TDP gives Intel a lot of leeway binning as do the lower core counts and low clock speeds. This is later in current node production so a max 3.0GHz 8 core part is not exactly something I would expect Intel finds difficult to manufacture.

 

[stresslvl0]

Sorry to bump such an old thread, but I've been looking online non-stop and cannot seem to find solid answers. I see above the max power consumption numbers, but can someone please post what they're seeing for idle power consumption at-the-wall for a similar build with a Silver 4108/4110 or similar?

Edit: and how does the 4109T compare?