Processor comparison

Core i7-6700K vs Core i7-7700K

6th gen vs 7th gen Intel Core desktop processors, compared spec by spec using Intel's official data.

The short answer

On paper, the Core i7-7700K is the stronger processor, ahead of the Core i7-6700K in 2 of the specs we compare (the Core i7-6700K leads in 0).

  • The Core i7-7700K is 1 generation newer (7th gen, launched Q1'17) than the Core i7-6700K (6th gen, Q3'15). Both are built on the same basic core design, so the differences come mainly from core counts, clock speeds and cache.
  • Both have 4 cores and 8 threads.
  • The Core i7-7700K reaches 4.50 GHz with turbo, 7% higher than the Core i7-6700K's 4.20 GHz. Higher clocks help games and everyday apps that lean on a few fast cores.

This verdict is generated from official specifications only. We haven't benchmarked these processors, so it doesn't measure real-world speed in games or apps; check independent benchmarks for your specific use.

Full specifications

Core i7-6700K vs Core i7-7700K: specifications side by side. A check mark shows the better value where one is clearly better.
SpecificationCore i7-6700KCore i7-7700K
GenerationNewer generations bring newer architectures and platform features.6th gen7th gen (better)
LaunchedQ3'15Q1'17
Cores44
Threads88
Max turbo frequency4.20 GHz4.50 GHz (better)
Base frequency4.00 GHz4.20 GHz
Cache8 MB8 MB
Base power (TDP)Lower means less heat and a smaller cooler; it isn't a measure of speed.91 W91 W
Manufacturing process14 nm14 nm
Memory supportDDR4 + DDR3LDDR4 + DDR3L
Max memory64 GB64 GB
Memory channels22
Integrated graphicsIntel HD Graphics 530Intel HD Graphics 630
SocketFCLGA1151FCLGA1151
PCI Express3.03.0
PCI Express lanes1616
Unlocked (overclocking)YesYes

Compare different processors

Sources

Spotted a wrong spec? Tell us and we'll check it against Intel's page. How we review