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Intel Core i5-6400 vs Core i7-7700K

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Specification Charts

Combined Speed (all threads combined)

Core i7-7700K 33.6 GT/s
Core i5-6400 10.8 GT/s
Difference: 22.8 (211%)

Core Speed

Core i7-7700K 4.2 GHz
Core i5-6400 2.7 GHz
Difference: 1.5 (56%)

Threads

Core i7-7700K 8
Core i5-6400 4
Difference: 4 (100%)

TDP

Core i7-7700K 91 Watts
Core i5-6400 65 Watts
Difference: 26 (40%)

Price Comparison

Core i5-6400

Core i7-7700K

Specifications

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Model Core i5-6400 Core i7-7700K
Manufacturer Intel Intel
Architecture Skylake Kaby Lake-S (14 nm)
Core Speed 2.7 GHz 4.2 GHz
Hyperthreading No Yes
Cores / Modules 4 4
Total Threads 4 8
Turbo 4/5/6/6 4.5 GHz
L2 Cache 4 x 256 KB 4 x 256 KB
L3 Cache 6 MB 8 MB
GPU Model HD Graphics 530 HD Graphics 630
TDP 65 Watts 91 Watts
Socket LGA 1151 LGA 1151
Released 2015-09-01 January 2017

Core i5-6400

Core i7-7700K