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Review: Intel Core i7-8700K and Core i5-8400 (14nm Coffee Lake)

by Tarinder Sandhu on 5 October 2017, 14:00

Tags: Intel (NASDAQ:INTC)

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PiFast and HandBrake

The Core i7-8700K has the highest Turbo Boost speed of any chip in our line-up, and such frequency prowess is reflected in a graph-leading time.

Meanwhile, the Core i5-8400's peak 4.0GHz speed still gives it a good time in the single-threaded PiFast test. Intel remains leagues ahead here.

Switching gears to multi-threaded goodness in the form of the video-encoding HandBrake test, the Core i7-8700K is 40 per cent faster than its direct predecessor and better than the price rival Ryzen 7 1700.

The Core i5-8400 is more than twice as fast as the price-comparable Core i3-7350K and easily beats out the rival Ryzen 5 1500X from AMD. A strong start from both chips.