AMD Epyc 7642 vs AMD Ryzen 9 3900X

VS
AMD Epyc 7642
AMD Epyc 7642 Image
AMD Ryzen 9 3900X
AMD Ryzen 9 3900X Image
AMD Epyc 7642
AMD Ryzen 9 3900X
Key Differences Key Differences AMD Epyc 7642 AMD Ryzen 9 3900X
Cores 48 12
CPU Threads 96 24
Base Clock Speed 2.3GHz 3.8GHz
Turbo Clock Speed 3.3GHz 4.6GHz
TDP (THERMAL DESIGN POINT) 225W 105W
Has integrated graphics No No
Performance per watt Not Known 113.0
Performance Performance AMD Epyc 7642 AMD Ryzen 9 3900X
CPU Speed & Cores 48 x 2.3GHz 12 x 3.8GHz
Number of CPU Threads 96 24
L2 Cache Size 24MB 6MB
L3 Cache Size 256MB 64MB
Turbo Boost Frequency 3.3GHz 4.6GHz
L1 Cache Size 3072KB 768KB
L2 Core 0.5MB/core 0.5MB/core
L3 Core 5.33MB/core 5.33MB/core
Does it have an unlocked multiplier No Yes
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Epyc 7642 AMD Ryzen 9 3900X
Has AES Support 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 No
Has FMA3 Instructions Support Yes Yes
Supports CPU Throttling No No
Supports ARM TrustZone Tech No No
General info General info AMD Epyc 7642 AMD Ryzen 9 3900X
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 7nm
TDP (Thermal Design Point) 225W 105W
PCI Express Version 4 4
Does it have Integrated Graphics No No
CPU Temperature Not Known 95°C
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7642 AMD Ryzen 9 3900X
RAM Memory Speed 3200MHz 3200MHz
Max Memory Bandwidth 190.7GB/s 47.68GB/s
Max Memory Channels 8 2
Supported Memory Size 4000GB 128GB
ECC (Error-Correcting Code) Memory Support Yes Yes
DDR Type Memory Version 4 4
Benchmarks Benchmarks AMD Epyc 7642 AMD Ryzen 9 3900X
Cinebench R20 Score (Single Thread) Not Known 521
PassMark Score Not Known 32866
PassMark Score (Single Thread) Not Known 2732
Geekbench 5 Score (Multi-Thread) Not Known 11864
Cinebench R20 Score (Multi-Thread) Not Known 7178
Geekbench 5 Score (Single Thread) Not Known 1282
Blender Score (bmw27) Not Known 116.4seconds
Blender Score (Classroom) Not Known 353.3seconds
PassMark Score (Overclocked) Not Known 33293
CPU Performance (Per Watt) Not Known 113.0

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