AMD Epyc 7742 vs AMD Ryzen Threadripper 3970X

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AMD Epyc 7742
AMD Epyc 7742 Image
AMD Ryzen Threadripper 3970X
AMD Ryzen Threadripper 3970X Image
AMD Epyc 7742
AMD Ryzen Threadripper 3970X
Key Differences Key Differences AMD Epyc 7742 AMD Ryzen Threadripper 3970X
Cores 64 32
CPU Threads 128 64
Base Clock Speed 2.25GHz 3.7GHz
Turbo Clock Speed 3.4GHz 4.5GHz
TDP (THERMAL DESIGN POINT) 225W 280W
Has integrated graphics No No
Performance per watt 66.7 81.8
Performance Performance AMD Epyc 7742 AMD Ryzen Threadripper 3970X
CPU Speed & Cores 64 x 2.25GHz 32 x 3.7GHz
Number of CPU Threads 128 64
L2 Cache Size 32MB 16MB
L3 Cache Size 256MB 128MB
Turbo Boost Frequency 3.4GHz 4.5GHz
L1 Cache Size 4096KB 3000KB
L2 Core 0.5MB/core 0.5MB/core
L3 Core 4MB/core 4MB/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 7742 AMD Ryzen Threadripper 3970X
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 Yes
Has FMA3 Instructions Support Yes Yes
Supports CPU Throttling No No
Supports ARM TrustZone Tech No No
General info General info AMD Epyc 7742 AMD Ryzen Threadripper 3970X
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 7nm
TDP (Thermal Design Point) 225W 280W
PCI Express Version 4 4
Does it have Integrated Graphics No No
CPU Temperature Not Known 68°C
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7742 AMD Ryzen Threadripper 3970X
RAM Memory Speed 3200MHz 3200MHz
Max Memory Bandwidth 190.7GB/s 95.37GB/s
Max Memory Channels 8 4
Supported Memory Size 4000GB Not Known
ECC (Error-Correcting Code) Memory Support Yes Yes
DDR Type Memory Version 4 4
Benchmarks Benchmarks AMD Epyc 7742 AMD Ryzen Threadripper 3970X
PassMark Score 67185 64262
PassMark Score (Single Thread) 2376 2716
Geekbench 5 Score (Multi-Thread) 15005 22917
Cinebench R20 Score (Multi-Thread) 20644 17444
Cinebench R20 Score (Single Thread) 398 509
Geekbench 5 Score (Single Thread) 725 1258
Blender Score (bmw27) 33.9seconds 47.4seconds
Blender Score (Classroom) 95.8seconds 143.5seconds
CPU Performance (Per Watt) 66.7 81.8

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