AMD Ryzen 9 5900X vs AMD Athlon II X4 638

VS
AMD Ryzen 9 5900X
AMD Ryzen 9 5900X Image
AMD Athlon II X4 638
AMD Athlon II X4 638 Image
AMD Ryzen 9 5900X
AMD Athlon II X4 638
Key Differences Key Differences AMD Ryzen 9 5900X AMD Athlon II X4 638
Cores 12 4
CPU Threads 24 4
Base Clock Speed 3.7GHz 2.7GHz
Turbo Clock Speed 4.8GHz Not Known
TDP (THERMAL DESIGN POINT) 105W 65W
Has integrated graphics No No
Performance per watt 132.4 55.0
Performance Performance AMD Ryzen 9 5900X AMD Athlon II X4 638
CPU Speed & Cores 12 x 3.7GHz 4 x 2.7GHz
Number of CPU Threads 24 4
L2 Cache Size 6MB 4MB
L3 Cache Size 64MB Not Known
Turbo Boost Frequency 4.8GHz Not Known
L1 Cache Size 768KB 512KB
L2 Core 0.5MB/core 1MB/core
L3 Core 5.33MB/core Not Known
Does it have an unlocked multiplier Yes No
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Features Features AMD Ryzen 9 5900X AMD Athlon II X4 638
Has AES Support Yes No
Supported SSE Version 4.2 4
Has AVX Support Yes No
Has MMX Tech Support Yes Yes
Has F16C Support Yes No
Has FMA4 Instructions Support No No
Has Multithreading Tech Support Yes No
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 Ryzen 9 5900X AMD Athlon II X4 638
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 7nm 32nm
TDP (Thermal Design Point) 105W 65W
PCI Express Version 4 2
Does it have Integrated Graphics No No
Transistor Count Not Known 1178 million
Supports Power Optimized L2 Cache No No
Memory Memory AMD Ryzen 9 5900X AMD Athlon II X4 638
RAM Memory Speed 3200MHz 1866MHz
Max Memory Bandwidth 47.68GB/s Not Known
Max Memory Channels 2 2
Supported Memory Size 128GB Not Known
ECC (Error-Correcting Code) Memory Support No No
DDR Type Memory Version 4 Not Known
Benchmarks Benchmarks AMD Ryzen 9 5900X AMD Athlon II X4 638
PassMark Score 39634 Not Known
PassMark Score (Single Thread) 3520 Not Known
Geekbench 5 Score (Multi-Thread) 13898 Not Known
Cinebench R20 Score (Multi-Thread) 8468 Not Known
Cinebench R20 Score (Single Thread) 637 Not Known
Geekbench 5 Score (Single Thread) 1564 Not Known
CPU Performance (Per Watt) 132.4 55.0

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