Xeon Gold 6538Y vs Silver 4123
Primary details
Comparing Xeon Silver 4123 and Xeon Gold 6538Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 842 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Power efficiency | 8.17 | no data |
| Release date | 1 January 2018 (6 years ago) | 1 October 2023 (1 year ago) |
Detailed specifications
Xeon Silver 4123 and Xeon Gold 6538Y 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 | 8 (Octa-Core) | 32 (Dotriaconta-Core) |
| Threads | 16 | 64 |
| Base clock speed | 3 GHz | 2.2 GHz |
| Boost clock speed | 3.2 GHz | 4 GHz |
| L3 cache | 11 MB | 60 MB |
| Chip lithography | 14 nm | Intel 7 nm |
| Maximum core temperature | no data | 79 °C |
| 64 bit support | - | - |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon Silver 4123 and Xeon Gold 6538Y 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.
| Socket | FCLGA3647 | FCLGA4677 |
| Power consumption (TDP) | 105 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Silver 4123 and Xeon Gold 6538Y. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX-512 | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| vPro | + | no data |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Turbo Boost Max 3.0 | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Xeon Silver 4123 and Xeon Gold 6538Y technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Silver 4123 and Xeon Gold 6538Y are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4123 and Xeon Gold 6538Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR5-5200 |
| Maximum memory size | 512 GB | 4 TB |
| Max memory channels | 6 | 8 |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon Silver 4123 and Xeon Gold 6538Y.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 48 | 80 |
Pros & cons summary
| Recency | 1 January 2018 | 1 October 2023 |
| Physical cores | 8 | 32 |
| Threads | 16 | 64 |
| Power consumption (TDP) | 105 Watt | 225 Watt |
Xeon Silver 4123 has 114.3% lower power consumption.
Xeon Gold 6538Y, on the other hand, has an age advantage of 5 years, and 300% more physical cores and 300% more threads.
We couldn't decide between Xeon Silver 4123 and Xeon Gold 6538Y. We've got no test results to judge.
Should you still have questions on choice between Xeon Silver 4123 and Xeon Gold 6538Y, ask them in Comments section, and we shall answer.
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