Intel Core i9-9940X vs Intel Core i9-9900KF

VS
Intel Core i9-9940X
Intel Core i9-9940X Image
Intel Core i9-9900KF
Intel Core i9-9900KF Image
Intel Core i9-9940X
Intel Core i9-9900KF
Key Differences Key Differences Intel Core i9-9940X Intel Core i9-9900KF
Cores 14 8
CPU Threads 28 16
Base Clock Speed 3.3GHz 3.6GHz
Turbo Clock Speed 4.4GHz 5GHz
TDP (THERMAL DESIGN POINT) 165W 95W
Has integrated graphics No No
Performance per watt 83.2 90.8
Performance Performance Intel Core i9-9940X Intel Core i9-9900KF
CPU Speed & Cores 14 x 3.3GHz 8 x 3.6GHz
Number of CPU Threads 28 16
L2 Cache Size 14MB 2MB
L3 Cache Size 19.25MB 16MB
Turbo Boost Frequency 4.4GHz 5GHz
L1 Cache Size 896KB 512KB
L2 Core 1MB/core 0.25MB/core
L3 Core 1.38MB/core 2MB/core
Clock Multiplier 33 Not Known
Turbo Boost Tech Version 2 2
Does it have an unlocked multiplier No Yes
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features Intel Core i9-9940X Intel Core i9-9900KF
Has AES Support Yes Yes
Supports CPU Throttling Yes No
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 i9-9940X Intel Core i9-9900KF
Height 45mm 37.5mm
Width Size 52.5mm 37.5mm
General info General info Intel Core i9-9940X Intel Core i9-9900KF
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 14nm
TDP (Thermal Design Point) 165W 95W
PCI Express Version 3 3
CPU Temperature 88°C 100°C
Height 45mm 37.5mm
Width Size 52.5mm 37.5mm
Does it have Integrated Graphics No No
Supports Power Optimized L2 Cache No No
Memory Memory Intel Core i9-9940X Intel Core i9-9900KF
RAM Memory Speed 2666MHz 2666MHz
Max Memory Bandwidth 79.47GB/s 41.6GB/s
Max Memory Channels 4 2
Supported Memory Size 128GB 128GB
Bus Bandwidth 8GT/s 8GT/s
ECC (Error-Correcting Code) Memory Support No No
DDR Type Memory Version 4 4
Benchmarks Benchmarks Intel Core i9-9940X Intel Core i9-9900KF
PassMark Score 28274 18920
PassMark Score (Single Thread) 2627 3003
Geekbench 5 Score (Multi-Thread) 13722 8622
Cinebench R20 Score (Multi-Thread) 5912 4995
Cinebench R20 Score (Single Thread) 457 518
Geekbench 5 Score (Single Thread) 1148 1318
Blender Score (Classroom) 329.7seconds 550.7seconds
Blender Score (bmw27) 110.3seconds 164.8seconds
PassMark Score (Overclocked) 29664 19916
CPU Performance (Per Watt) 83.2 90.8

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