AMD Epyc 7642 vs AMD Athlon X4 940

VS
AMD Epyc 7642
AMD Epyc 7642 Image
AMD Athlon X4 940
AMD Athlon X4 940 Image
AMD Epyc 7642
AMD Athlon X4 940
Key Differences Key Differences AMD Epyc 7642 AMD Athlon X4 940
Cores 48 4
CPU Threads 96 4
Base Clock Speed 2.3GHz 3.2GHz
Turbo Clock Speed 3.3GHz 3.6GHz
TDP (THERMAL DESIGN POINT) 225W 65W
Has integrated graphics No No
Performance per watt Not Known Not Known
Performance Performance AMD Epyc 7642 AMD Athlon X4 940
CPU Speed & Cores 48 x 2.3GHz 4 x 3.2GHz
Number of CPU Threads 96 4
L2 Cache Size 24MB 2MB
L3 Cache Size 256MB Not Known
Turbo Boost Frequency 3.3GHz 3.6GHz
L1 Cache Size 3072KB 320KB
L2 Core 0.5MB/core 0.5MB/core
L3 Core 5.33MB/core Not Known
Does it have an unlocked multiplier No Yes
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Epyc 7642 AMD Athlon X4 940
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 No
Has FMA3 Instructions Support Yes Yes
Supports CPU Throttling No No
Supports ARM TrustZone Tech No No
General info General info AMD Epyc 7642 AMD Athlon X4 940
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 28nm
TDP (Thermal Design Point) 225W 65W
PCI Express Version 4 3
Does it have Integrated Graphics No No
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7642 AMD Athlon X4 940
RAM Memory Speed 3200MHz 2400MHz
Max Memory Bandwidth 190.7GB/s 38.4GB/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

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