Intel Core i9-9940X vs Intel Core i5-10400F

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Intel Core i9-9940X
Intel Core i9-9940X Image
Intel Core i5-10400F
Intel Core i5-10400F Image
Intel Core i9-9940X
Intel Core i5-10400F
Key Differences Key Differences Intel Core i9-9940X Intel Core i5-10400F
Cores 14 6
CPU Threads 28 12
Base Clock Speed 3.3GHz 2.9GHz
Turbo Clock Speed 4.4GHz 4.3GHz
TDP (THERMAL DESIGN POINT) 165W 65W
Has integrated graphics No No
Performance per watt 83.2 87.4
Performance Performance Intel Core i9-9940X Intel Core i5-10400F
CPU Speed & Cores 14 x 3.3GHz 6 x 2.9GHz
Number of CPU Threads 28 12
L2 Cache Size 14MB 1.5MB
L3 Cache Size 19.25MB 12MB
Turbo Boost Frequency 4.4GHz 4.3GHz
L1 Cache Size 896KB 384KB
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 No
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features Intel Core i9-9940X Intel Core i5-10400F
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 i9-9940X Intel Core i5-10400F
Height 45mm No Data Found
Width Size 52.5mm No Data Found
General info General info Intel Core i9-9940X Intel Core i5-10400F
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 14nm
TDP (Thermal Design Point) 165W 65W
PCI Express Version 3 3
CPU Temperature 88°C 100°C
Height 45mm No Data Found
Width Size 52.5mm No Data Found
Does it have Integrated Graphics No No
GPU Base Clock Speed Not Known 350MHz
DirectX Version Info Not Known 12
OpenGL Driver Version Not Known 4.5
GPU Boost Clock Speed Not Known 1100MHz
No. of Supported Displays Not Known 3
3DMark06 Score Not Known No Data Found
Supports Power Optimized L2 Cache No No Data Found
Memory Memory Intel Core i9-9940X Intel Core i5-10400F
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 i5-10400F
PassMark Score 28274 12582
PassMark Score (Single Thread) 2627 2588
Geekbench 5 Score (Multi-Thread) 13722 5724
Cinebench R20 Score (Multi-Thread) 5912 3197
Cinebench R20 Score (Single Thread) 457 450
Geekbench 5 Score (Single Thread) 1148 1108
Blender Score (Classroom) 329.7seconds 820.4seconds
Blender Score (bmw27) 110.3seconds 256.8seconds
PassMark Score (Overclocked) 29664 13075
CPU Performance (Per Watt) 83.2 87.4
Power Consumption Under High Load Not Known No Data Found
Standard Power Consumption Not Known No Data Found

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