Intel Core i9-10900K vs Intel Core i5-8420T

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Intel Core i9-10900K
Intel Core i9-10900K Image
Intel Core i5-8420T
Intel Core i5-8420T Image
Intel Core i9-10900K
Intel Core i5-8420T
Key Differences Key Differences Intel Core i9-10900K Intel Core i5-8420T
Cores 10 6
CPU Threads 20 6
Base Clock Speed 3.7GHz 1.8GHz
Turbo Clock Speed 5.3GHz 3.4GHz
TDP (THERMAL DESIGN POINT) 125W 35W
Has integrated graphics Yes Yes
Performance per watt 87.9 Not Known
Performance Performance Intel Core i9-10900K Intel Core i5-8420T
CPU Speed & Cores 10 x 3.7GHz 6 x 1.8GHz
Number of CPU Threads 20 6
L2 Cache Size 2.5MB 1.5MB
L3 Cache Size 20MB 9MB
Turbo Boost Frequency 5.3GHz 3.4GHz
L1 Cache Size 640KB 384KB
L2 Core 0.25MB/core 0.25MB/core
Does it have an unlocked multiplier Yes No
L3 Core 2MB/core 1.5MB/core
Turbo Boost Tech Version 2 2
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Clock Multiplier Not Known 18
Features Features Intel Core i9-10900K Intel Core i5-8420T
Has AES Support Yes Yes
Supports CPU Throttling Yes Yes
Supported SSE Version 4.2 4.2
Has AVX Support Yes Yes
Has MMX Tech Support Yes Yes
Has F16C Support Yes Yes
Has FMA4 Instructions Support No No
Has Multithreading Tech Support Yes Yes
Has NX Processor Bit Support Yes Yes
Has FMA3 Instructions Support Yes Yes
Supports ARM TrustZone Tech No No
Miscellaneous Miscellaneous Intel Core i9-10900K Intel Core i5-8420T
Height 37.5mm 37.5mm
Width Size 37.5mm 37.5mm
General info General info Intel Core i9-10900K Intel Core i5-8420T
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 14nm
GPU Base Clock Speed 350MHz Not Known
TDP (Thermal Design Point) 125W 35W
PCI Express Version 3 3
CPU Temperature 100°C 72°C
DirectX Version Info 12 12
OpenGL Driver Version 4.5 4.4
GPU Boost Clock Speed 1200MHz Not Known
No. of Supported Displays 3 3
Width Size 37.5mm 37.5mm
Height 37.5mm 37.5mm
Does it have Integrated Graphics Yes Yes
OpenGL Driver Version Not Known 2
Supports Power Optimized L2 Cache No No
Memory Memory Intel Core i9-10900K Intel Core i5-8420T
RAM Memory Speed 2933MHz 2666MHz
Max Memory Bandwidth 45.8GB/s 39.74GB/s
Max Memory Channels 2 2
Supported Memory Size 128GB 64GB
Bus Bandwidth 8GT/s 8GT/s
ECC (Error-Correcting Code) Memory Support No No
DDR Type Memory Version 4 4
Benchmarks Benchmarks Intel Core i9-10900K Intel Core i5-8420T
PassMark Score 24183 Not Known
PassMark Score (Single Thread) 3175 Not Known
Geekbench 5 Score (Multi-Thread) 10991 Not Known
Cinebench R20 Score (Single Thread) 539 Not Known
Cinebench R20 Score (Multi-Thread) 6399 Not Known
Geekbench 5 Score (Single Thread) 1406 Not Known
Blender Score (bmw27) 132.9seconds Not Known
Blender Score (Classroom) 409.6seconds Not Known
PassMark Score (Overclocked) 24362 Not Known
CPU Performance (Per Watt) 87.9 Not Known

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