Ryzen Threadripper PRO 3975WX vs Phenom II X4 N950
Aggregate performance score
Ryzen Threadripper PRO 3975WX outperforms Phenom II X4 N950 by a whopping 2407% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2306 | 95 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | 4x AMD Phenom II | AMD Ryzen Threadripper |
| Power efficiency | 1.70 | 5.34 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Champlain (2010−2011) | Matisse (2019−2020) |
| Release date | 4 October 2010 (14 years ago) | 14 July 2020 (4 years ago) |
Detailed specifications
Phenom II X4 N950 and Ryzen Threadripper PRO 3975WX basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 32 (Dotriaconta-Core) |
| Threads | 4 | 64 |
| Base clock speed | no data | 3.5 GHz |
| Boost clock speed | 2.1 GHz | 4.2 GHz |
| Bus rate | 3600 MHz | no data |
| Multiplier | no data | 35 |
| L1 cache | 512 KB | 64K (per core) |
| L2 cache | 2 MB | 512K (per core) |
| L3 cache | no data | 128 MB |
| Chip lithography | 45 nm | 7 nm, 12 nm |
| Die size | no data | 74 mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | no data | 3,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Phenom II X4 N950 and Ryzen Threadripper PRO 3975WX compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | no data | 1 |
| Socket | S1 | sWRX8 |
| Power consumption (TDP) | 35 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X4 N950 and Ryzen Threadripper PRO 3975WX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2 |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X4 N950 and Ryzen Threadripper PRO 3975WX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X4 N950 and Ryzen Threadripper PRO 3975WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4-3200 |
| Maximum memory size | no data | 2 TiB |
| Maximum memory bandwidth | no data | 204.8 GB/s |
Peripherals
Specifications and connection of peripherals supported by Phenom II X4 N950 and Ryzen Threadripper PRO 3975WX.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Pros & cons summary
| Performance score | 1.49 | 37.35 |
| Recency | 4 October 2010 | 14 July 2020 |
| Physical cores | 4 | 32 |
| Threads | 4 | 64 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 35 Watt | 280 Watt |
Phenom II X4 N950 has 700% lower power consumption.
Ryzen Threadripper PRO 3975WX, on the other hand, has a 2406.7% higher aggregate performance score, an age advantage of 9 years, 700% more physical cores and 1500% more threads, and a 542.9% more advanced lithography process.
The AMD Ryzen Threadripper PRO 3975WX is our recommended choice as it beats the AMD Phenom II X4 N950 in performance tests.
Be aware that Phenom II X4 N950 is a notebook processor while Ryzen Threadripper PRO 3975WX is a server/workstation one.
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