Athlon PRO 3145B vs Ryzen Threadripper PRO 9945WX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 142 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Power efficiency | 3.91 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | GlobalFoundries |
| Architecture codename | Shimada Peak (2025) | Dali (2020−2021) |
| Release date | July 2025 (recently) | January 2021 (4 years ago) |
Detailed specifications
Ryzen Threadripper PRO 9945WX and Athlon PRO 3145B 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 | 12 (Dodeca-Core) | 2 (Dual-core) |
| Threads | 24 | 4 |
| Base clock speed | 4.7 GHz | 2.4 GHz |
| Boost clock speed | 5.4 GHz | 3.3 GHz |
| L1 cache | 64 KB (per core) | 96 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 64 MB (shared) | 4 MB (shared) |
| Chip lithography | 4 nm | 14 nm |
| Die size | 2x 70.6 mm2 | 148 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | 16,630 million | 3,500 million |
| 64 bit support | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper PRO 9945WX and Athlon PRO 3145B 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 | sTR5 | FP5 |
| Power consumption (TDP) | 350 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 9945WX and Athlon PRO 3145B. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 9945WX and Athlon PRO 3145B are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 9945WX and Athlon PRO 3145B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon Vega 3 |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 9945WX and Athlon PRO 3145B.
| PCIe version | 5.0 | 3.0 |
| PCI Express lanes | 136 | 12 |
Pros & cons summary
| Physical cores | 12 | 2 |
| Threads | 24 | 4 |
| Chip lithography | 4 nm | 14 nm |
| Power consumption (TDP) | 350 Watt | 15 Watt |
Ryzen Threadripper PRO 9945WX has 500% more physical cores and 500% more threads, and a 250% more advanced lithography process.
Athlon PRO 3145B, on the other hand, has 2233.3% lower power consumption.
We couldn't decide between AMD Ryzen Threadripper PRO 9945WX and AMD Athlon PRO 3145B. We've got no test results to judge.
Be aware that Ryzen Threadripper PRO 9945WX is a server/workstation processor while Athlon PRO 3145B is a notebook one.
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