Which reviewer does that? How do you isolate CPU power? Measuring the pins? Software reporting is half bullshit. Also nobody even reports idle power. Don't tell me idle is hard to define bla bla we all know what's idle. Even an inaccurate figure is better than no figure. And there are community compiled lists that are very helpful when building systems.
So where is the reviewer worth their salt you're talking about?
Notebookcheck always isolates CPU power by measuring idle and draw from the wall.
Many top quality CPU reviewers also do this. Chinese reviewer Geekerwan is probably the best at it. In the past, written reviews like Anandtech will always do it. Today, anyone with video editing software thinks they can review CPU performance.
Ever since Youtube, there have been plenty of low quality reviewers that mislead people. I didn’t know who this Jeff guy was but now he’s on my list as one. There are still some who do proper reviews.
> Notebookcheck always isolates CPU power by measuring idle and draw from the wall.
That's not actually isolating CPU power. To begin with, the CPU itself has idle power draw. Measuring that way would favor a CPU that has worse power management because it would be excluding the draw the CPU itself fails to shed at idle.
It also gets it wrong the other way. The SSD etc. is using however much at idle but that isn't the amount it uses when running the benchmark. Many of them don't have very fine grained power management and will draw ~100mW at idle but consume close to full power under even moderate load.
You can never fully isolate CPU power. Even software reading of CPU power is not always accurate.
The most accurate is reading from the wall. Thats what Notebookcheck does.
For all intents and purposes, it is good enough to get a read on CPU efficiency. Furthermore, if you are comparing equivalent systems, it is good enough to compare the two.
> You can never fully isolate CPU power. Even software reading of CPU power is not always accurate.
And what results from this when you compare system with a 15W CPU to one with a 60W CPU on performance per watt when both systems have an additional 10W draw from non-CPU components?
So where is the reviewer worth their salt you're talking about?