Ryzen Threadripper PRO 3955WX vs Phenom II X3 705e
Aggregate performance score
Ryzen Threadripper PRO 3955WX outperforms Phenom II X3 705e by a whopping 3203% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X3 705e and Ryzen Threadripper PRO 3955WX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2525 | 168 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 4.09 | 23.26 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD Ryzen Threadripper |
| Architecture codename | Heka (2009−2010) | Matisse (2019−2020) |
| Release date | June 2009 (15 years ago) | 14 July 2020 (3 years ago) |
| Launch price (MSRP) | $152 | no data |
| Current price | $34 (0.2x MSRP) | $924 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Ryzen Threadripper PRO 3955WX has 469% better value for money than Phenom II X3 705e.
Detailed specifications
Phenom II X3 705e and Ryzen Threadripper PRO 3955WX 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 | 3 (Tri-Core) | 16 (Hexadeca-Core) |
| Threads | 3 | 32 |
| Base clock speed | no data | 3.9 GHz |
| Boost clock speed | 2.5 GHz | 4.3 GHz |
| L1 cache | 128 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 512K (per core) |
| L3 cache | 6 MB (shared) | 64 MB |
| Chip lithography | 45 nm | 7 nm, 12 nm |
| Die size | 258 mm2 | 74 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | 758 million | 3,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | Yes |
Compatibility
Information on Phenom II X3 705e and Ryzen Threadripper PRO 3955WX 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 | 1 | 1 |
| Socket | AM3 | TR4 |
| Power consumption (TDP) | 65 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 705e and Ryzen Threadripper PRO 3955WX. You'll probably need this information if you require some particular technology.
| AES-NI | no data | + |
| AVX | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 705e and Ryzen Threadripper PRO 3955WX are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 705e and Ryzen Threadripper PRO 3955WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | 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 X3 705e and Ryzen Threadripper PRO 3955WX.
| 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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Ryzen Threadripper PRO 3955WX outperforms Phenom II X3 705e by 3203% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
Ryzen Threadripper PRO 3955WX outperforms Phenom II X3 705e by 3202% in Passmark.
Pros & cons summary
| Performance score | 0.79 | 26.09 |
| Physical cores | 3 | 16 |
| Threads | 3 | 32 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 65 Watt | 280 Watt |
The Ryzen Threadripper PRO 3955WX is our recommended choice as it beats the Phenom II X3 705e in performance tests.
Note that Phenom II X3 705e is a desktop processor while Ryzen Threadripper PRO 3955WX is a server/workstation one.
Should you still have questions on choice between Phenom II X3 705e and Ryzen Threadripper PRO 3955WX, ask them in Comments section, and we shall answer.
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