"Higher frequency for less nodes"A new item introduced in my series of Droidfish tests in retail stores was SAMSUNG TAB-S 8.4. It has the Snapdragon's quad-core 800 CPU clocked at 2.26 Ghz.
Although the values look attractive, the performance lacked under Droidfish and Stockfish5 engine. My standard 1 minute analysis test at initial position with 4 cores and 64MB hash size has only run at 480kNps. Another big disappointment with Snapdragon.
Where have all these higher Ghz gone???
Due to limited time and conditions of a store, it's not possible to root the device and ask for performance governor to force the CPU to run at full speed. Thus, it's an "out-of-the-box" result which could be improved by tweaking. Maybe... but i can't imagine how much.
For the moment, JUST STAY AWAY from Snapdragon if you expect stronger chess play. Even the Intel Atom's, after all their internal translations from ARM instructions to X86 ones, perform well with Stockfish engine. This is an exact case for "theory fails vs reality".
Now i wanna find an opportunity to repeat the same test with Snapdragon-801 and Intel 3770.
Below are the results i've collected so far. All except Exynos were done with factory CPU settings.
MAKER MODEL CPU GHz kNps
------- ---------------- ----------- ------ ----
Asus MemoPad ME176C Atom 3745 4x1.86 747
Samsung N7100 Exynos 4412 4x1.60 700
Samsung SM-T320 8.4" SD-800 4x2.26 480
LG V500 GPad SD-600 4x1.70 439