9-Way Linux Laptop Performance Comparison From Intel Nehalem To Broadwell
Written by Michael Larabel in Computers on 7 February 2015. Page 3 of 8. 15 Comments

Next up is a look the laptop performance when running on battery power while monitoring the battery power consumption and also generating performance-per-Watt metrics. The laptop screen brightness was maxed out on all hardware during testing, but keep in mind that there's different screen sizes and other hardware differences between these units. Only six of the nine laptops successfully ran these tests while the other three ran into lock-up issues related to thermal performance while running on battery with some of the more demanding Linux benchmarks.

The fastest laptop with Xonotic was the ThinkPad W510 due to using a discrete NVIDIA GPU with the binary graphics driver.

The power consumption was the highest though with the W510 laptop. The X1 Carbon average power use came in at 19 Watts, which was lower than all of the other laptops tested.

The performance-per-Watt of the ThinkPad X1 Carbon with Core i7 Broadwell processor was far ahead of the other laptops that ran these battery benchmarks.

The Broadwell X1 Carbon also did the best in power efficiency for the CPU-bound x264 video encoding benchmark.

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