The 10nm Helio X30 May Be MediaTek’s First Truly Competitive High-End Chip

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bit_user

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The stranger part in the Helio X30’s design is that MediaTek decided to stick to using a four-core Cortex-A53 as well.
Another reason might be cost. A53's are much smaller than A73's, and I have a feeling that ARM charges more for its newer, more power-efficient A35 than the first-gen 64-bit A53's.

Also, the A53's are about 26% faster, per clock. Scale this by the clock speed ratio, and you get about 46% speed difference, between those cores.

BTW, consider that the dual-A73's should about 61% faster than the quad-A53 cluster. Of course, these are all very rough generalizations. NEON-heavy code will exhibit an even greater performance disparity between the A73's and the rest.

https://en.wikipedia.org/wiki/Comparison_of_ARMv8-A_cores

 
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