Checking CPU scaling of the new box with i7z and stress. Reminder this is the i7-8750H with 6 cores, 12 threads, 45W TDP.
Here’s one task hogging CPU with stress --cpu 1, we definitely see 4100 Mhz as promised:
Starting with ~10w power consumption with i7z running but nothing else. Let’s exercise us some cores!
| typical clock | watts | |
|---|---|---|
stress --cpu 1 |
4.1 Ghz | 30w |
stress --cpu 2 |
4.1 Ghz | 42w |
stress --cpu 3 |
4.0 Ghz | 53w |
stress --cpu 4 |
3.9 Ghz | 65w* |
stress --cpu 5 |
3.7 Ghz | 65w* |
stress --cpu 6 |
3.5 Ghz | 65w* |
stress --cpu 12 |
3.3 Ghz | 65w* |
* It is likely more, you can really see the CPU speed limiters kick in because the watt meter will peak at 75w and then quickly dials it back down to exactly 65w.
Running current-ish versions of mprime jacks this up to 75w though, and overall clock scales down to 3.1 Ghz … those AVX2 extensions are 
Power consumption seems to be about 8w totally idle at the Ubuntu login prompt. Not bad at all!