Last week, we took a closer look at the performance of Qualcomm's Snapdragon 810. Reports of overheating and our own experience with 810-based phones prompted us to dig deeper into the chip's performance under load. After testing multiple devices we found that, yes, the 810 throttles more quickly than comparable chips like Samsung's Exynos 7 Octa, which can slow down performance overall.
Yesterday's LG G4 announcement brought us our first phone based on the Snapdragon 808, which is an architecturally similar but slightly cut-down version of the 810. Where the 810 uses four "big" 2.0GHz ARM Cortex A57 cores and four "little" 1.6GHz Cortex A53 cores, the 808 uses two 1.8GHz Cortex A57 cores and four 1.44GHz Cortex A57 cores. The GPU is also a step down—from an Adreno 430 to an Adreno 418—and there are a few other downgrades here and there, but the CPU is what we'll be focusing on today.
First up, the thermal test. As explained by Primate Labs' John Poole, this is a two-thread test that performs a fixed amount of work over time. Faster processors can spend part of the test idle if they're able to complete that work fast enough. It's still a work-in-progress (Poole tells us that the final version will most likely be a part of Geekbench 4, due out later this year), but it's meant to simulate the kind of work that an actual application might do.
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