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by jwise0 4679 days ago
Sigh. Although some of this is Intel's own doing, "i3" is not a meaningful descriptor, especially when compared to "Cortex-A15" or "Cortex-A9". "Core i3" can refer to many, many generations of CPUs; this is not a nitpick, but a real complaint, because each of those CPUs have very different performance characteristics. Core i3 has been a Westmere (Nehalem tick); a Sandy Bridge; an Ivy Bridge (Sandy Bridge tick); and a Haswell. Saying "a 1.2GHz Core i3" is about as valuable, then, as saying "a Tegra" -- which could be an ARM11 MPCore (Tegra 6xx); a Cortex-A9 without NEON (Tegra 2); a Cortex-A9 with NEON (Tegra 3); or a Cortex-A15 (Tegra 4).

So, on a micro-level, the comparison is not terribly valid. On a macro-level -- saying that the devices are within an order of magnitude -- the results are reasonable, but certainly not novel...

1 comments

You are right that the i3 CPU(Core i3-530) we compared with is a little old generation. I tried to compare online Core i3-530 with Core i3-2105. The 2105 is SandyBridge and runs at a slightly higher clock 3.1 GHz(while the 530 runs at 2.93 according to CPU world).

According to cpu-world. The 2105 is 21% faster than the 530 for single threaded operations. If you account for the speed in clock this would mean only a boost of 14% improvement over the 530.

So its really not such a bad comparison.

In the meanwhile we will try run this on a newer CPU and let you know the results.