AMD Ryzen 9 3900 vs AMD Epyc 7451

VS
AMD Ryzen 9 3900
AMD Ryzen 9 3900 Image
AMD Epyc 7451
AMD Epyc 7451 Image
AMD Ryzen 9 3900
AMD Epyc 7451
Key Differences Key Differences AMD Ryzen 9 3900 AMD Epyc 7451
Cores 12 24
CPU Threads 24 48
Base Clock Speed 3.1GHz 2.3GHz
Turbo Clock Speed 4.3GHz 3.2GHz
TDP (THERMAL DESIGN POINT) 65W 180W
Has integrated graphics No No
Performance per watt 163.0 Not Known
Performance Performance AMD Ryzen 9 3900 AMD Epyc 7451
CPU Speed & Cores 12 x 3.1GHz 24 x 2.3GHz
Number of CPU Threads 24 48
L2 Cache Size 6MB 12MB
L3 Cache Size 64MB 64MB
Turbo Boost Frequency 4.3GHz 3.2GHz
L1 Cache Size 768KB 2304KB
L2 Core 0.5MB/core 0.5MB/core
L3 Core 5.33MB/core 2.67MB/core
Does it have an unlocked multiplier Yes No
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Ryzen 9 3900 AMD Epyc 7451
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 NX Processor Bit Support Yes Yes
Has FMA3 Instructions Support Yes Yes
Supports CPU Throttling No No
Supports ARM TrustZone Tech No No
General info General info AMD Ryzen 9 3900 AMD Epyc 7451
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 7nm 14nm
TDP (Thermal Design Point) 65W 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 3900 AMD Epyc 7451
RAM Memory Speed 3200MHz 2666MHz
Max Memory Bandwidth 47.68GB/s 341GB/s
Max Memory Channels 2 8
Supported Memory Size 128GB 2000GB
DDR Type Memory Version 4 Not Known
ECC (Error-Correcting Code) Memory Support No Yes
Benchmarks Benchmarks AMD Ryzen 9 3900 AMD Epyc 7451
PassMark Score 30887 28957
PassMark Score (Single Thread) 2649 1601
Blender Score (bmw27) 132.5seconds Not Known
Blender Score (Classroom) 446.6seconds Not Known
Geekbench 5 Score (Multi-Thread) 10598 Not Known
Geekbench 5 Score (Single Thread) 1190 Not Known
PassMark Score (Overclocked) 31671 Not Known
CPU Performance (Per Watt) 163.0 Not Known

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