undervolting Intel Core i5-4210U testing with a LENOVO Cherry 4A (7CCN60WW BIOS) and Intel Haswell Mobile 2GB on Ubuntu 18.04 via the Phoronix Test Suite. 75-50-50-0-0: Processor: Intel Core i5-4210U @ 2.70GHz (2 Cores / 4 Threads), Motherboard: LENOVO Cherry 4A (7CCN60WW BIOS), Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 256GB Samsung SSD 850, Graphics: Intel Haswell Mobile 2GB (1000MHz), Audio: Intel Haswell-ULT HD Audio, Network: Realtek RTL8111/8168/8411 + Intel 7260 OS: Ubuntu 18.04, Kernel: 5.0.0-23-generic (x86_64), Desktop: KDE Plasma 5.12.8, Display Server: X Server 1.19.6, Display Driver: modesetting 1.19.6, OpenGL: 4.5 Mesa 19.0.2, Compiler: GCC 7.4.0, File-System: ext4, Screen Resolution: 1920x1080 Sunflow Rendering System 0.07.2 Global Illumination + Image Synthesis Seconds < Lower Is Better 75-50-50-0-0 . 7.74 |==========================================================