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That is not an Icelake chip. IceLake and Comet Lake are both "10th Generation" Core. Icelake was limited to more premium offerings and was only 4 cores and lower.

Mia culpa as others pointed out, the i7-10710U was a Comet Lake part rather than Ice Lake. Seems even more glaring then that Intel had a 6-core U-series chip and now no longer offers one.

That said, also agreed with everyone that core count isn't absolute and we should be looking at the clock frequency, etc. One metric I'm curious to know more is sustained performance - e.g. if the chip can only hit its turbo for <30secs, then that just isn't very good...

Same base block argument. At 25W, the i7-10710U has a base clock at 1.6GHz, the newer parts are at 3.0GHz at 28W.

For laptops (which are far more likely to thermal throttle), this is a huge deal.

4C 11th gen is probably faster than 6C 10th gen (which is not Ice Lake BTW) because of higher IPC, larger cache, and better power efficiency.

10th Gen that ended in a U are Comet Lake (14nm++++) 10th Gen that ended in a G with a number are Ice Lake (10nm)