Arm announces its high-end Cortex-A78 CPU

[HEXUS]

Calls it the most efficient Cortex-A CPU ever designed. It is 20 per cent faster than the A77.

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[Luke7]

Is "most efficient [series] cpu ever" really a relevant marketing ploy? Like, unless they've intentionally made their technology worse since the last [series] CPU, isn't it rather bleeding obvious that the new one is better and therefore the best one yet?

[watercooled]

I see where you're coming from but to be pedantic, it depends. Efficiency is usually a priority for mobile-focused cores but sometimes a new CPU core design might trade efficiency for outright performance.