4 ms·
This is from 2011, but it should give you an idea: http://www.tomshardware.com/reviews/processor-architecture-benchmark,2974-15.html http://www.tomshardware.com
by dr_zoidberg 10y ago
This is from 2011, but it should give you an idea: http://www.tomshardware.com/reviews/processor-architecture-benchmark,2974-15.html http://www.tomshardware.com/reviews/processor-architecture-b... .
tl;dr: Core i7-2600k @ 3GHz, is about 2,67x faster than a Pentium 4 HT 660 (Prescott ua) @ 3Ghz. In the benchmark they tested single core, and equal clock, to keep everything as level as posible.
As for single core performance, Kaby Lake would be between 30 to 40% better than Sandy Bridge (which could be called the peak improvement architecture in the Core i brand), so it'd be about ~3,5x faster than the Prescott based chips.