AMD Ryzen Threadripper 1900X vs AMD Phenom II X4 975

VS
AMD Ryzen Threadripper 1900X
AMD Ryzen Threadripper 1900X Image
AMD Phenom II X4 975
AMD Phenom II X4 975 Image
AMD Ryzen Threadripper 1900X
AMD Phenom II X4 975
Key Differences Key Differences AMD Ryzen Threadripper 1900X AMD Phenom II X4 975
Cores 8 4
CPU Threads 16 4
Base Clock Speed 3.8GHz 3.6GHz
Turbo Clock Speed 4GHz Not Known
TDP (THERMAL DESIGN POINT) 180W 125W
Has integrated graphics No No
Performance per watt 37.5 54.0
Performance Performance AMD Ryzen Threadripper 1900X AMD Phenom II X4 975
CPU Speed & Cores 8 x 3.8GHz 4 x 3.6GHz
Number of CPU Threads 16 4
L2 Cache Size 4MB 2MB
L3 Cache Size 16MB 6MB
Turbo Boost Frequency 4GHz Not Known
L1 Cache Size 768KB 512KB
L2 Core 0.5MB/core 0.5MB/core
Does it have an unlocked multiplier Yes Yes
L3 Core 2MB/core 1.5MB/core
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
Clock Multiplier Not Known 18
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Features Features AMD Ryzen Threadripper 1900X 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
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General info General info AMD Ryzen Threadripper 1900X AMD Phenom II X4 975
Has 64-bit Support Yes Yes
Semiconductor Size 14nm 45nm
TDP (Thermal Design Point) 180W 125W
PCI Express Version 3 2
CPU Temperature 68°C Not Known
Does it have Integrated Graphics No No
Transistor Count Not Known 758 million
Supports Power Optimized L2 Cache No No
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Memory Memory AMD Ryzen Threadripper 1900X AMD Phenom II X4 975
RAM Memory Speed 2667MHz 1333MHz
Max Memory Bandwidth 85.3GB/s 21.3GB/s
Max Memory Channels 4 2
Supported Memory Size 2000GB Not Known
ECC (Error-Correcting Code) Memory Support Yes No
DDR Type Memory Version 4 Not Known
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Benchmarks Benchmarks AMD Ryzen Threadripper 1900X AMD Phenom II X4 975
PassMark Score 17335 4697
PassMark Score (Single Thread) 2374 1285
Geekbench 5 Score (Multi-Thread) 6758 Not Known
Cinebench R20 Score (Multi-Thread) 3678 Not Known
Cinebench R20 Score (Single Thread) 403 Not Known
Geekbench 5 Score (Single Thread) 993 Not Known
Blender Score (bmw27) 230.5seconds Not Known
Blender Score (Classroom) 733.9seconds Not Known
PassMark Score (Overclocked) 18254 5208
CPU Performance (Per Watt) 37.5 54.0
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