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There's been many individuals asking how the work is going in tracking down the major Linux kernel power regression I brought to light late last month (actually, there's at least two power regressions in the kernel). Not much progress has been made since then as I've been out of the office (and country) so I've been preoccupied with other matters, but I do happen to have another power test today to satisfy other reader requests. While this isn't the cause of either of the two major Linux kernel power regressions (it's not a CPU or GPU specific regression but has impacted a wide range of hardware occurring on at least hundreds of systems), in this article is a comparison of the NVIDIA and Nouveau drivers in how much power is consumed.

Source.


Interesting results, Nouveau has lower power usage in games (Probably due to lower performance?) even though the proprietary drivers have better power usage in everything else due to PowerMizer.
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My system
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 3770k @ 4.7Ghz ASRock Z77 Pro3 Powercolor Radeon HD7950 3GB @ 1150/1350 4x4GB G.Skill Ares 2000Mhz CL9 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 250GB Western Digital Black 1TB WD1002FAEX Samsung Spinpoint EcoGreen 2TB Pioneer DVR-220LBKS 
CoolingCoolingCoolingOS
Noctua NH-D14 Scythe Gentle Typhoon 1850rpm Corsair AF140 Quiet Edition Arch Linux x86-64, amdgpu 
OSMonitorMonitorKeyboard
Windows 10 Bloatfree Edition BenQ G2220HD BenQ G2020HD Ducky Shine III Year of the Snake, Cherry Blue 
PowerCaseMouseMouse Pad
Silverstone Strider Plus 600w Lian Li Lancool PC-K60 SteelSeries Sensei Professional Artisan Hien Mid Japan Black Large 
AudioOther
ASUS Xonar DX NZXT Sentry Mesh 30w Fan Controller 
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