AMD Ryzen 9 3900X vs AMD Epyc 7551

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AMD Ryzen 9 3900X
AMD Ryzen 9 3900X Image
AMD Epyc 7551
AMD Epyc 7551 Image
AMD Ryzen 9 3900X
AMD Epyc 7551
Key Differences Key Differences AMD Ryzen 9 3900X AMD Epyc 7551
Cores 12 32
CPU Threads 24 64
Base Clock Speed 3.8GHz 2GHz
Turbo Clock Speed 4.6GHz 3GHz
TDP (THERMAL DESIGN POINT) 105W 180W
Has integrated graphics No No
Performance per watt 113.0 Not Known
Performance Performance AMD Ryzen 9 3900X AMD Epyc 7551
CPU Speed & Cores 12 x 3.8GHz 32 x 2GHz
Number of CPU Threads 24 64
L2 Cache Size 6MB 16MB
L3 Cache Size 64MB 64MB
Turbo Boost Frequency 4.6GHz 3GHz
L1 Cache Size 768KB 3072KB
L2 Core 0.5MB/core 0.5MB/core
Does it have an unlocked multiplier Yes No
L3 Core 5.33MB/core 2MB/core
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Ryzen 9 3900X AMD Epyc 7551
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 No
Has FMA3 Instructions Support Yes Yes
Supports CPU Throttling No No
Supports ARM TrustZone Tech No No
Has NX Processor Bit Support No Yes
General info General info AMD Ryzen 9 3900X AMD Epyc 7551
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 7nm 14nm
TDP (Thermal Design Point) 105W 180W
PCI Express Version 4 3
CPU Temperature 95°C Not Known
Does it have Integrated Graphics No No
Transistor Count Not Known 19200 million
Supports Power Optimized L2 Cache No No
Memory Memory AMD Ryzen 9 3900X AMD Epyc 7551
RAM Memory Speed 3200MHz 2666MHz
Max Memory Bandwidth 47.68GB/s 341GB/s
Max Memory Channels 2 8
Supported Memory Size 128GB 2000GB
ECC (Error-Correcting Code) Memory Support Yes Yes
DDR Type Memory Version 4 4
Benchmarks Benchmarks AMD Ryzen 9 3900X AMD Epyc 7551
PassMark Score 32866 19606
PassMark Score (Single Thread) 2732 1660
Geekbench 5 Score (Multi-Thread) 11864 Not Known
Cinebench R20 Score (Single Thread) 521 Not Known
Cinebench R20 Score (Multi-Thread) 7178 Not Known
Geekbench 5 Score (Single Thread) 1282 Not Known
Blender Score (Classroom) 353.3seconds Not Known
Blender Score (bmw27) 116.4seconds Not Known
PassMark Score (Overclocked) 33293 Not Known
CPU Performance (Per Watt) 113.0 Not Known

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