Ryzen Threadripper PRO 3955WX vs Ryzen Threadripper 1977X
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 251 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 14.42 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD Ryzen Threadripper |
| Power efficiency | no data | 3.45 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Zen (2017−2020) | Castle Peak (2020) |
| Release date | no data | 14 July 2020 (4 years ago) |
| Launch price (MSRP) | no data | $1,149 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen Threadripper 1977X 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 | 14 (Tetradeca-Core) | 16 (Hexadeca-Core) |
| Threads | no data | 32 |
| Base clock speed | no data | 3.9 GHz |
| Boost clock speed | 3.5 GHz | 4.3 GHz |
| Multiplier | no data | 39 |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 512 KB (per core) |
| L3 cache | 32768 KB | 64 MB |
| Chip lithography | 14 nm | 7 nm, 12 nm |
| Die size | no data | 2x 74 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | no data | 7,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper 1977X 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 | SP3r2 | WRX8 |
| Power consumption (TDP) | 155 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper 1977X and Ryzen Threadripper PRO 3955WX. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper 1977X and Ryzen Threadripper PRO 3955WX are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper 1977X and Ryzen Threadripper PRO 3955WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4-3200 |
| Maximum memory size | no data | 2 TiB |
| Maximum memory bandwidth | no data | 204.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper 1977X and Ryzen Threadripper PRO 3955WX.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Physical cores | 14 | 16 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 155 Watt | 280 Watt |
Ryzen Threadripper 1977X has 80.6% lower power consumption.
Ryzen Threadripper PRO 3955WX, on the other hand, has 14.3% more physical cores, and a 100% more advanced lithography process.
We couldn't decide between AMD Ryzen Threadripper 1977X and AMD Ryzen Threadripper PRO 3955WX. We've got no test results to judge.
Note that Ryzen Threadripper 1977X is a desktop processor while Ryzen Threadripper PRO 3955WX is a server/workstation one.
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