AMD Epyc 7662 vs AMD Epyc 7642

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AMD Epyc 7662
AMD Epyc 7662 Image
AMD Epyc 7642
AMD Epyc 7642 Image
AMD Epyc 7662
AMD Epyc 7642
Key Differences Key Differences AMD Epyc 7662 AMD Epyc 7642
Cores 64 48
CPU Threads 128 96
Base Clock Speed 2GHz 2.3GHz
Turbo Clock Speed 3.3GHz 3.3GHz
TDP (THERMAL DESIGN POINT) 225W 225W
Has integrated graphics No No
Performance per watt Not Known Not Known
Performance Performance AMD Epyc 7662 AMD Epyc 7642
CPU Speed & Cores 64 x 2GHz 48 x 2.3GHz
Number of CPU Threads 128 96
L2 Cache Size 32MB 24MB
L3 Cache Size 256MB 256MB
Turbo Boost Frequency 3.3GHz 3.3GHz
L1 Cache Size 4096KB 3072KB
L2 Core 0.5MB/core 0.5MB/core
L3 Core 4MB/core 5.33MB/core
Does it have an unlocked multiplier No No
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Epyc 7662 AMD Epyc 7642
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 7662 AMD Epyc 7642
Has 64-bit Support No Data Found No Data Found
TDP (Thermal Design Point) 225W 225W
PCI Express Version 4 4
Does it have Integrated Graphics No No
Semiconductor Size Not Known 14nm
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7662 AMD Epyc 7642
RAM Memory Speed 3200MHz 3200MHz
Max Memory Bandwidth 204.8GB/s 190.7GB/s
Max Memory Channels 8 8
Supported Memory Size 4000GB 4000GB
DDR Type Memory Version 4 4
ECC (Error-Correcting Code) Memory Support No Yes
Benchmarks Benchmarks AMD Epyc 7662 AMD Epyc 7642
Cinebench R20 Score (Multi-Thread) 18203 Not Known
Cinebench R20 Score (Single Thread) 386 Not Known

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