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

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Intel Core i9-9940X
Intel Core i9-9940X Image
Intel Core i9-9900X
Intel Core i9-9900X Image
Intel Core i9-9940X
Intel Core i9-9900X
Key Differences Key Differences Intel Core i9-9940X Intel Core i9-9900X
Cores 14 10
CPU Threads 28 20
Base Clock Speed 3.3GHz 3.5GHz
Turbo Clock Speed 4.4GHz 4.4GHz
TDP (THERMAL DESIGN POINT) 165W 165W
Has integrated graphics No No
Performance per watt 83.2 61.8
Performance Performance Intel Core i9-9940X Intel Core i9-9900X
CPU Speed & Cores 14 x 3.3GHz 10 x 3.5GHz
Number of CPU Threads 28 20
L2 Cache Size 14MB 10MB
L3 Cache Size 19.25MB 19.25MB
Turbo Boost Frequency 4.4GHz 4.4GHz
L1 Cache Size 896KB 640KB
L2 Core 1MB/core 1MB/core
L3 Core 1.38MB/core 1.93MB/core
Clock Multiplier 33 35
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 i9-9900X
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 i9-9900X
Height 45mm No Data Found
Width Size 52.5mm No Data Found
General info General info Intel Core i9-9940X Intel Core i9-9900X
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 14nm
TDP (Thermal Design Point) 165W 165W
PCI Express Version 3 3
CPU Temperature 88°C 92°C
Height 45mm No Data Found
Width Size 52.5mm No Data Found
Does it have Integrated Graphics No No
Supports Power Optimized L2 Cache No No
Memory Memory Intel Core i9-9940X Intel Core i9-9900X
RAM Memory Speed 2666MHz 2666MHz
Max Memory Bandwidth 79.47GB/s Not Known
Max Memory Channels 4 4
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 i9-9900X
PassMark Score 28274 21793
PassMark Score (Single Thread) 2627 2590
Geekbench 5 Score (Multi-Thread) 13722 10204
Cinebench R20 Score (Multi-Thread) 5912 4855
Cinebench R20 Score (Single Thread) 457 455
Geekbench 5 Score (Single Thread) 1148 1115
Blender Score (Classroom) 329.7seconds Not Known
Blender Score (bmw27) 110.3seconds Not Known
PassMark Score (Overclocked) 29664 23091
CPU Performance (Per Watt) 83.2 61.8

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