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Intel Core i5 8400H vs Core i7-990X

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Specification Charts

Combined Speed (all threads combined)

Core i7-990X 42 GT/s
Core i5 8400H 20 GT/s
Difference: 22 (110%)

Core Speed

Core i7-990X 3.5 GHz
Core i5 8400H 2.5 GHz
Difference: 1 (40%)

Threads

Core i7-990X 12
Core i5 8400H 8
Difference: 4 (50%)

TDP

Core i7-990X 130 Watts
Core i5 8400H 45 Watts
Difference: 85 (189%)

Price Comparison

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Core i5 8400H

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Core i7-990X

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Specifications

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Model Core i5 8400H Core i7-990X
Manufacturer Intel Intel
Architecture Coffee Lake Westmere
Core Speed 2.5 GHz 3.5 GHz
Hyperthreading Yes Yes
Cores / Modules 4 6
Total Threads 8 12
Turbo 4.2 GHz 1/1/1/1/2/2
L2 Cache 6 x 256 KB
L3 Cache 8MB 12 MB
GPU Model UHD 630 N/A
TDP 45 Watts 130 Watts
Socket LGA 1366
Released August 2017 2011-02-01