EPYC 9745 vs Xeon W-2123
Primary details
Comparing Xeon W-2123 and EPYC 9745 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1170 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 8.64 | no data |
| Market segment | Server | Server |
| Series | Intel Xeon W | no data |
| Power efficiency | 4.20 | no data |
| Architecture codename | Skylake (server) (2017−2018) | Turin (2024) |
| Release date | 29 August 2017 (7 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | $294 | $12,141 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon W-2123 and EPYC 9745 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) | 128 |
| Threads | 8 | 256 |
| Base clock speed | 3.6 GHz | 2.4 GHz |
| Boost clock speed | 3.9 GHz | 3.7 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 36 | no data |
| L1 cache | 64K (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 8.25 MB (shared) | 256 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | 484 mm2 | no data |
| Maximum case temperature (TCase) | 64 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Xeon W-2123 and EPYC 9745 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 (Uniprocessor) | 2 |
| Socket | FCLGA2066 | SP5 |
| Power consumption (TDP) | 120 Watt | 400 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2123 and EPYC 9745. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | no data |
| PAE | 46 Bit | no data |
| Turbo Boost Max 3.0 | - | no data |
| Precision Boost 2 | no data | + |
Security technologies
Xeon W-2123 and EPYC 9745 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2123 and EPYC 9745 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 Xeon W-2123 and EPYC 9745. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666 | DDR5 |
| Maximum memory size | 512 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2123 and EPYC 9745.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 48 | 128 |
Pros & cons summary
| Recency | 29 August 2017 | 10 October 2024 |
| Physical cores | 4 | 128 |
| Threads | 8 | 256 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 120 Watt | 400 Watt |
Xeon W-2123 has 233.3% lower power consumption.
EPYC 9745, on the other hand, has an age advantage of 7 years, 3100% more physical cores and 3100% more threads, and a 366.7% more advanced lithography process.
We couldn't decide between Xeon W-2123 and EPYC 9745. We've got no test results to judge.
Should you still have questions on choice between Xeon W-2123 and EPYC 9745, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
