AMD Epyc 7742 vs AMD FX-8320

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AMD Epyc 7742
AMD Epyc 7742 Image
AMD FX-8320
AMD FX-8320 Image
AMD Epyc 7742
AMD FX-8320
Key Differences Key Differences AMD Epyc 7742 AMD FX-8320
Cores 64 8
CPU Threads 128 8
Base Clock Speed 2.25GHz 3.5GHz
Turbo Clock Speed 3.4GHz 4GHz
TDP (THERMAL DESIGN POINT) 225W 125W
Has integrated graphics No No
Performance per watt 66.7 75.0
Performance Performance AMD Epyc 7742 AMD FX-8320
CPU Speed & Cores 64 x 2.25GHz 8 x 3.5GHz
Number of CPU Threads 128 8
L2 Cache Size 32MB 8MB
L3 Cache Size 256MB 8MB
Turbo Boost Frequency 3.4GHz 4GHz
L1 Cache Size 4096KB 384KB
L2 Core 0.5MB/core 1MB/core
L3 Core 4MB/core 1MB/core
Does it have an unlocked multiplier No Yes
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Turbo Core Tech Version Not Known 3
Features Features AMD Epyc 7742 AMD FX-8320
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 Yes
Has Multithreading Tech Support Yes No
Has NX Processor Bit Support Yes Yes
Has FMA3 Instructions Support Yes Yes
Supports CPU Throttling No Yes
Supports ARM TrustZone Tech No No
General info General info AMD Epyc 7742 AMD FX-8320
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 32nm
TDP (Thermal Design Point) 225W 125W
PCI Express Version 4 2
Does it have Integrated Graphics No No
CPU Temperature Not Known 61.1°C
Transistor Count Not Known 1200 million
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7742 AMD FX-8320
RAM Memory Speed 3200MHz 1866MHz
Max Memory Bandwidth 190.7GB/s 21GB/s
Max Memory Channels 8 2
Supported Memory Size 4000GB Not Known
ECC (Error-Correcting Code) Memory Support Yes No
DDR Type Memory Version 4 Not Known
Bus Bandwidth Not Known 5.4GT/s
Benchmarks Benchmarks AMD Epyc 7742 AMD FX-8320
PassMark Score 67185 8199
PassMark Score (Single Thread) 2376 1403
Geekbench 5 Score (Multi-Thread) 15005 Not Known
Cinebench R20 Score (Multi-Thread) 20644 Not Known
Cinebench R20 Score (Single Thread) 398 Not Known
Geekbench 5 Score (Single Thread) 725 Not Known
Blender Score (bmw27) 33.9seconds Not Known
Blender Score (Classroom) 95.8seconds Not Known
CPU Performance (Per Watt) 66.7 75.0
PassMark Score (Overclocked) Not Known 9371
Power Consumption Under High Load Not Known 185.4W
Standard Power Consumption Not Known 73.2W

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