Compare any two CPUs:


Intel Core i5-6400 vs Core i9 9900T

Display Graphs

Hide Graphs

Specification Charts

Combined Speed (all threads combined)

Core i9 9900T 33.6 GT/s
Core i5-6400 10.8 GT/s
Difference: 22.8 (211%)

Core Speed

Core i5-6400 2.7 GHz
Core i9 9900T 2.1 GHz
Difference: 0.6 (29%)


Core i9 9900T 16
Core i5-6400 4
Difference: 12 (300%)


Core i5-6400 65 Watts
Core i9 9900T 35 Watts
Difference: 30 (86%)

Price Comparison

Display Prices

Hide Prices

Core i5-6400

Check prices at:

Core i9 9900T

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.


Display Specifications

Hide Specifications

Model Core i5-6400 Core i9 9900T
Manufacturer Intel Intel
Architecture Skylake Coffee Lake-S
Core Speed 2.7 GHz 2.1 GHz
Hyperthreading No Yes
Cores / Modules 4 8
Total Threads 4 16
Turbo 4/5/6/6 4.4
L2 Cache 4 x 256 KB 8 x 256KB
L3 Cache 6 MB 16MB
GPU Model HD Graphics 530 UHD Graphics 630
TDP 65 Watts 35 Watts
Socket LGA 1151 LGA 1151
Released 2015-09-01 April 2019