Intel Core i5-8650K vs Intel Core i9-7940X

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Intel Core i5-8650K
Intel Core i5-8650K Image
Intel Core i9-7940X
Intel Core i9-7940X Image
Intel Core i5-8650K
Intel Core i9-7940X
Key Differences Key Differences Intel Core i5-8650K Intel Core i9-7940X
Cores 6 14
CPU Threads 6 28
Base Clock Speed 3.7GHz 3.1GHz
Turbo Clock Speed 4.5GHz 4.4GHz
TDP (THERMAL DESIGN POINT) 95W 165W
Has integrated graphics Yes No
Performance per watt Not Known Not Known
Performance Performance Intel Core i5-8650K Intel Core i9-7940X
CPU Speed & Cores 6 x 3.7GHz 14 x 3.1GHz
Number of CPU Threads 6 28
L2 Cache Size 1.5MB 14MB
L3 Cache Size 9MB 19.2MB
Turbo Boost Frequency 4.5GHz 4.4GHz
L1 Cache Size 384KB 448KB
L2 Core 0.25MB/core 1MB/core
Does it have an unlocked multiplier Yes Yes
L3 Core 1.5MB/core 1.3MB/core
Clock Multiplier 37 Not Known
Turbo Boost Tech Version 2 3
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features Intel Core i5-8650K Intel Core i9-7940X
Has AES Support Yes Yes
Supports CPU Throttling Yes Yes
Supported SSE Version 4.2 Not Known
Has AVX Support Yes Yes
Has MMX Tech Support Yes No
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 i5-8650K Intel Core i9-7940X
Height 37.5mm 51mm
Width Size 37.5mm 58.5mm
General info General info Intel Core i5-8650K Intel Core i9-7940X
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 14nm
TDP (Thermal Design Point) 95W 165W
PCI Express Version 3 3
CPU Temperature 72°C Not Known
DirectX Version Info 12 Not Known
OpenGL Driver Version 4.4 Not Known
OpenGL Driver Version 2 Not Known
No. of Supported Displays 3 Not Known
Width Size 37.5mm 58.5mm
Height 37.5mm 51mm
Does it have Integrated Graphics Yes No
Supports Power Optimized L2 Cache No No
Memory Memory Intel Core i5-8650K Intel Core i9-7940X
RAM Memory Speed 2666MHz 2666MHz
Max Memory Bandwidth 39.74GB/s Not Known
Max Memory Channels 2 4
Supported Memory Size 64GB Not Known
Bus Bandwidth 8GT/s Not Known
DDR Type Memory Version 4 Not Known
ECC (Error-Correcting Code) Memory Support No No

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