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Intel Core i3 8121U vs Core i7-5820K

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Specification Charts

Combined Speed (all threads combined)

Core i7-5820K 39.6 GT/s
Core i3 8121U 8.8 GT/s
Difference: 30.8 (350%)

Core Speed

Core i7-5820K 3.3 GHz
Core i3 8121U 2.2 GHz
Difference: 1.1 (50%)

Threads

Core i7-5820K 12
Core i3 8121U 4
Difference: 8 (200%)

TDP

Core i7-5820K 140 Watts
Core i3 8121U 15 Watts
Difference: 125 (833%)

Price Comparison

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Core i3 8121U

Amazon.com

Core i7-5820K

Amazon.com

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.

Specifications

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Model Core i3 8121U Core i7-5820K
Manufacturer Intel Intel
Architecture Cannon Lake Haswell-E
Core Speed 2.2 GHz 3.3 GHz
Hyperthreading Yes Yes
Cores / Modules 2 6
Total Threads 4 12
Turbo 3.2 GHz 1/1/1/1/3/3
L2 Cache 6 x 256 KB
L3 Cache 4MB 15 MB
GPU Model N/A
TDP 15 Watts 140 Watts
Socket LGA 2011-3
Released 2018 2014-08-01
Display Prices

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Core i3 8121U

Amazon.com

Core i7-5820K

Amazon.com

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.