Wattage/Amp draw on 512GB Razer Blade 2014 Model

Hooked up my Kill-A-Watt to do some measurements on the power supply side. I also have a DC ammeter so I will be able to measure the actual dc voltage just need to get some barrel connectors to do the tests with! Will update later with those

Following tests done with battery fully charged:

Idle = 24-26w .22a-.24a

Max CPU Only (using Prime95) = 73-75w .62a-.64a

Max GPU Only (Using Furmark 0x MSAA @ 1080p) = 116-118w .99a

Max GPU Only (Using Furmark 0x MSAA @ 3k) = 118-119w .99a

Max GPU Only (Using Furmark 8x MSAA @ 1080p, for some reason doesn't throttle GPU core and stays at constant 966MHz) = 117-118w .99a-1a

Max GPU Only (Using Furmark 8x MSAA @ 3k, for some reason doesn't throttle GPU core and stays at constant 966MHz) = 102-103w .85a-.88a

Max CPU + GPU (Using Furmark 0x MSAA @ 1080p) = 154-162w 1.32a-1.37a

Max CPU + GPU (Using Furmark 0x MSAA @ 3k) = 158-163w 1.31-1.34a

Max CPU + GPU (Using Furmark 8x MSAA @ 1080p) = 152-154w 1.26a

Max CPU + GPU (Using Furmark 8x MSAA @ 3k) = 145-147w 1.21-1.23a

The highest wattage draw I've seen so far was 162w and the charger being only 150w that's pretty good. I need to run tests on the DC side to see *ACTUAL* values. There is no 100% efficiency from AC->DC and if there was it wouldn't make the charger heat up as much as it does. Heat = not very efficient.

Will update this post when I get my DC ammeter connected.


UPDATE 1:

Drained battery some and re-ran: Max CPU + GPU (Using Furmark 0x MSAA @1080p) = 168w 1.4a

Running to Fry's right now to pick up some 5.5mm OD by 2.5mm ID M/F barrel connectors to do a proper DC test.


UPDATE 2:

Tests done @ 1080p 0xMSAA

AC Side: Idle Charging: 57-58w .49a
DC Side: Idle Charging: 47-50w 2.39-2.53a

AC Side: Max CPU Charging: 108-109w .91a
DC Side: Max CPU Charging: 94-97w 4.9-5a

AC Side: Max GPU Charging: 153-156w 1.31a
DC Side: Max GPU Charging: 137w 7.1-7.3a

AC Side: Max CPU + GPU Charging: 167w 1.4a
DC Side: Max CPU + GPU Charging: 145-147w 7.5-7.65a

I see no reason to test after battery is fully charged but if anyone is interested I will.

Looks like the more power drawn from the charger the more inefficient it becomes. The unit never went above 147w in testing. I ordered a second charger so I can run them in parallel later to see if there's any change in power consumption, doubt it though.

 

Interesting, looking forward to the actual DC voltage.

 

Updated OP