AMD Epyc 7742 vs Intel Core i7-4820K

VS
AMD Epyc 7742
AMD Epyc 7742 Image
Intel Core i7-4820K
Intel Core i7-4820K Image
AMD Epyc 7742
Intel Core i7-4820K
Key Differences Key Differences AMD Epyc 7742 Intel Core i7-4820K
Cores 64 4
CPU Threads 128 8
Base Clock Speed 2.25GHz 3.7GHz
Turbo Clock Speed 3.4GHz 3.9GHz
TDP (THERMAL DESIGN POINT) 225W 130W
Has integrated graphics No No
Performance per watt 66.7 138.7
Performance Performance AMD Epyc 7742 Intel Core i7-4820K
CPU Speed & Cores 64 x 2.25GHz 4 x 3.7GHz
Number of CPU Threads 128 8
L2 Cache Size 32MB 1MB
L3 Cache Size 256MB 10MB
Turbo Boost Frequency 3.4GHz 3.9GHz
L1 Cache Size 4096KB 128KB
L2 Core 0.5MB/core 0.2MB/core
L3 Core 4MB/core 2.5MB/core
Does it have an unlocked multiplier No No
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Clock Multiplier Not Known 37
Features Features AMD Epyc 7742 Intel Core i7-4820K
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 No
Supports CPU Throttling No Yes
Supports ARM TrustZone Tech No No
General info General info AMD Epyc 7742 Intel Core i7-4820K
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 22nm
TDP (Thermal Design Point) 225W 130W
PCI Express Version 4 3
Does it have Integrated Graphics No No
CPU Temperature Not Known 66.8°C
Transistor Count Not Known 1860 million
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7742 Intel Core i7-4820K
RAM Memory Speed 3200MHz 1866MHz
Max Memory Bandwidth 190.7GB/s 59.7GB/s
Max Memory Channels 8 4
Supported Memory Size 4000GB 64GB
ECC (Error-Correcting Code) Memory Support Yes No
DDR Type Memory Version 4 Not Known
Bus Bandwidth Not Known 5GT/s
Benchmarks Benchmarks AMD Epyc 7742 Intel Core i7-4820K
PassMark Score 67185 9774
PassMark Score (Single Thread) 2376 2007
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) 66.7 138.7
PassMark Score (Overclocked) Not Known 11220

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