Xeon 674X vs Ryzen Threadripper PRO 3945WX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 381 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | AMD Ryzen Threadripper | no data |
| Power efficiency | 2.88 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | Intel |
| Architecture codename | Castle Peak (2020) | Granite Rapids (2024−2026) |
| Release date | 14 July 2020 (5 years ago) | 2 February 2026 (recently) |
| Launch price (MSRP) | no data | $2,199 |
Detailed specifications
Ryzen Threadripper PRO 3945WX and Xeon 674X 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) | 28 (Octacosa-Core) |
| Performance-cores | no data | 28 |
| Threads | 24 | 56 |
| Base clock speed | 4 GHz | 3 GHz |
| Boost clock speed | 4.3 GHz | 4.9 GHz |
| Bus rate | no data | 0 GT/s |
| Multiplier | 40 | no data |
| L1 cache | 64 KB (per core) | 112 KB (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 64 MB | 144 MB (shared) |
| Chip lithography | 7 nm, 12 nm | Intel 3 nm |
| Die size | 2x 74 mm2 | 2x 598 mm2 |
| Maximum case temperature (TCase) | 95 °C | 77 °C |
| Number of transistors | 7,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen Threadripper PRO 3945WX and Xeon 674X 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 | WRX8 | FCLGA4710 |
| Power consumption (TDP) | 280 Watt | 270 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 3945WX and Xeon 674X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® AMX, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Ryzen Threadripper PRO 3945WX and Xeon 674X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 3945WX and Xeon 674X are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 3945WX and Xeon 674X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5(6400MT/s)MRDIMM(8000MT/s) |
| Maximum memory size | 2 TiB | 4 TB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | 204.8 GB/s | no data |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 3945WX and Xeon 674X.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 128 | 128 |
Pros & cons summary
| Recency | 14 July 2020 | 2 February 2026 |
| Physical cores | 12 | 28 |
| Threads | 24 | 56 |
| Power consumption (TDP) | 280 Watt | 270 Watt |
Xeon 674X has an age advantage of 5 years, 133.3% more physical cores and 133.3% more threads, and 3.7% lower power consumption.
We couldn't decide between AMD Ryzen Threadripper PRO 3945WX and Intel Xeon 674X. We've got no test results to judge.
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