AMD Epyc 7742 vs Intel Core i7-4790K

AMD Epyc 7742
AMD Epyc 7742 Image
Intel Core i7-4790K
Intel Core i7-4790K Image
AMD Epyc 7742
Intel Core i7-4790K
Key Differences Key Differences AMD Epyc 7742 Intel Core i7-4790K
Cores 64 4
CPU Threads 128 8
Base Clock Speed 2.25GHz 4GHz
Turbo Clock Speed 3.4GHz 4.4GHz
Has integrated graphics No Yes
Performance per watt 66.7 45.4
Performance Performance AMD Epyc 7742 Intel Core i7-4790K
CPU Speed & Cores 64 x 2.25GHz 4 x 4GHz
Number of CPU Threads 128 8
L2 Cache Size 32MB 1MB
L3 Cache Size 256MB 8MB
Turbo Boost Frequency 3.4GHz 4.4GHz
L1 Cache Size 4096KB 256KB
L2 Core 0.5MB/core 0.25MB/core
L3 Core 4MB/core 2MB/core
Does it have an unlocked multiplier No Yes
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Clock Multiplier Not Known 40
Features Features AMD Epyc 7742 Intel Core i7-4790K
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 Yes
Supports ARM TrustZone Tech No No
General info General info AMD Epyc 7742 Intel Core i7-4790K
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 14nm 22nm
TDP (Thermal Design Point) 225W 88W
PCI Express Version 4 3
Does it have Integrated Graphics No Yes
GPU Base Clock Speed Not Known 350MHz
CPU Temperature Not Known 72.72°C
Transistor Count Not Known 1400 million
OpenGL Driver Version Not Known 4
GPU Boost Clock Speed Not Known 1250MHz
No. of Supported Displays Not Known 3
Supports Power Optimized L2 Cache No No
Memory Memory AMD Epyc 7742 Intel Core i7-4790K
RAM Memory Speed 3200MHz 1600MHz
Max Memory Bandwidth 190.7GB/s 25.6GB/s
Max Memory Channels 8 2
Supported Memory Size 4000GB 32GB
ECC (Error-Correcting Code) Memory Support Yes No
DDR Type Memory Version 4 3
Bus Bandwidth Not Known 5GT/s
Benchmarks Benchmarks AMD Epyc 7742 Intel Core i7-4790K
PassMark Score 67185 8089
PassMark Score (Single Thread) 2376 2484
Geekbench 5 Score (Multi-Thread) 15005 3991
Cinebench R20 Score (Multi-Thread) 20644 1982
Cinebench R20 Score (Single Thread) 398 411
Geekbench 5 Score (Single Thread) 725 1068
Blender Score (bmw27) 33.9seconds 423.2seconds
Blender Score (Classroom) 95.8seconds 1320.7seconds
CPU Performance (Per Watt) 66.7 45.4
PassMark Score (Overclocked) Not Known 8880

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