AMD Ryzen 9 3950X vs AMD Epyc 7281

VS
AMD Ryzen 9 3950X
AMD Ryzen 9 3950X Image
AMD Epyc 7281
AMD Epyc 7281 Image
AMD Ryzen 9 3950X
AMD Epyc 7281
Key Differences Key Differences AMD Ryzen 9 3950X AMD Epyc 7281
Cores 16 16
CPU Threads 32 32
Base Clock Speed 3.5GHz 2.1GHz
Turbo Clock Speed 4.7GHz 2.7GHz
TDP (THERMAL DESIGN POINT) 105W 155W
Has integrated graphics No No
Performance per watt 135.0 Not Known
Performance Performance AMD Ryzen 9 3950X AMD Epyc 7281
CPU Speed & Cores 16 x 3.5GHz 16 x 2.1GHz
Number of CPU Threads 32 32
L2 Cache Size 8.1MB 8MB
L3 Cache Size 72MB 32MB
Turbo Boost Frequency 4.7GHz 2.7GHz
L1 Cache Size 1536KB 1536KB
L2 Core 0.5MB/core 0.5MB/core
Does it have an unlocked multiplier Yes No
L3 Core 4.5MB/core 2MB/core
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Ryzen 9 3950X AMD Epyc 7281
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 3950X AMD Epyc 7281
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 7nm 14nm
TDP (Thermal Design Point) 105W 155W
PCI Express Version 4 3
CPU Temperature 95°C Not Known
Transistor Count 19200 million Not Known
Does it have Integrated Graphics No No
Supports Power Optimized L2 Cache No No
Memory Memory AMD Ryzen 9 3950X AMD Epyc 7281
Max Memory Channels 2 8
ECC (Error-Correcting Code) Memory Support Yes Yes
DDR Type Memory Version 4 Not Known
RAM Memory Speed Not Known 2400MHz
Max Memory Bandwidth Not Known 307GB/s
Supported Memory Size Not Known 2000GB
Benchmarks Benchmarks AMD Ryzen 9 3950X AMD Epyc 7281
PassMark Score 39265 12720
PassMark Score (Single Thread) 2746 1429
Geekbench 5 Score (Multi-Thread) 14174 Not Known
Cinebench R20 Score (Multi-Thread) 9148 Not Known
Cinebench R20 Score (Single Thread) 531 Not Known
Geekbench 5 Score (Single Thread) 1297 Not Known
Blender Score (bmw27) 90.8seconds Not Known
Blender Score (Classroom) 270.7seconds Not Known
CPU Performance (Per Watt) 135.0 Not Known

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