AMD Ryzen 9 Pro 3900 vs AMD Phenom II X4 975

VS
AMD Ryzen 9 Pro 3900
AMD Ryzen 9 Pro 3900 Image
AMD Phenom II X4 975
AMD Phenom II X4 975 Image
AMD Ryzen 9 Pro 3900
AMD Phenom II X4 975
Key Differences Key Differences AMD Ryzen 9 Pro 3900 AMD Phenom II X4 975
Cores 12 4
CPU Threads 24 4
Base Clock Speed 3.1GHz 3.6GHz
Turbo Clock Speed 4.3GHz Not Known
TDP (THERMAL DESIGN POINT) 65W 125W
Has integrated graphics No No
Performance per watt Not Known 54.0
Performance Performance AMD Ryzen 9 Pro 3900 AMD Phenom II X4 975
CPU Speed & Cores 12 x 3.1GHz 4 x 3.6GHz
Number of CPU Threads 24 4
L2 Cache Size 6MB 2MB
L3 Cache Size 64MB 6MB
Turbo Boost Frequency 4.3GHz Not Known
L1 Cache Size 768KB 512KB
L2 Core 0.5MB/core 0.5MB/core
Does it have an unlocked multiplier No Yes
L3 Core 5.33MB/core 1.5MB/core
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Clock Multiplier Not Known 18
Features Features AMD Ryzen 9 Pro 3900 AMD Phenom II X4 975
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 Pro 3900 AMD Phenom II X4 975
Has 64-bit Support No Data Found No Data Found
Semiconductor Size 7nm 45nm
TDP (Thermal Design Point) 65W 125W
PCI Express Version 4 2
CPU Temperature 95°C Not Known
Does it have Integrated Graphics No No
Transistor Count Not Known 758 million
Supports Power Optimized L2 Cache No No
Memory Memory AMD Ryzen 9 Pro 3900 AMD Phenom II X4 975
RAM Memory Speed 3200MHz 1333MHz
Max Memory Bandwidth 47.68GB/s 21.3GB/s
Max Memory Channels 2 2
Supported Memory Size 128GB Not Known
DDR Type Memory Version 4 Not Known
ECC (Error-Correcting Code) Memory Support No No
Benchmarks Benchmarks AMD Ryzen 9 Pro 3900 AMD Phenom II X4 975
PassMark Score 31800 4697
PassMark Score (Single Thread) 2637 1285
PassMark Score (Overclocked) Not Known 5208
CPU Performance (Per Watt) Not Known 54.0

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