Any information about how Coffee Lake H-series undervolts?

[TheDankKoosh]

Has anyone done some extensive testing with this yet? The coffee lake H chips seem to be under performing due to what I'm assuming are power limits, I want to see what these chips can do under their max turbo clocks at all times. 

 

@sicily428 @Pendragon @D2ultima ?

[D2ultima]

10 minutes ago, TheDankKoosh said:

Has anyone done some extensive testing with this yet? The coffee lake H chips seem to be under performing due to what I'm assuming are power limits, I want to see what these chips can do under their max turbo clocks at all times. 

 

@sicily428 @Pendragon @D2ultima ?

It is power limits. You need about 80W+ to run a 8950HK at stock speeds under load (4.3GHz)

[TheDankKoosh]

3 minutes ago, D2ultima said:

It is power limits. You need about 80W+ to run a 8950HK at stock speeds under load (4.3GHz)

Do you know if undervolting these by say 100mv would help with that? I'm also assuming that the 80w figure is coming from something like p95

[D2ultima]

6 hours ago, TheDankKoosh said:

Do you know if undervolting these by say 100mv would help with that? I'm also assuming that the 80w figure is coming from something like p95

It's not. Voltage is clearly high out the box. -100mV will... help reduce power draw, but it's not making 50W difference. You're getting about 3.3GHz maybe a little more depending on the game/load out of those hexacore chips, from what I see so far. Maximum power draw for PCMark 10 is a whopping 120W

 

http://forum.notebookreview.com/threads/msi-gt75-titan-8rg-094-review-by-phoenix.816385/

 

Just running FF15 benchmark at 1080p with a single 1080 is 67W max. You're NEVER

 

EVER

 

EVER AS LONG AS POSSIBLE

 

Achieving full stock performance at 45W on ANY 6-core mobile chip.

 

And I knew that months before they ever released. The same problem is on the 8th-gen U chips. 15W for a 45W chip