Xeon Gold 6442Y vs Silver 4123
Aggregate performance score
Xeon Gold 6442Y outperforms Xeon Silver 4123 by a whopping 302% based on our aggregate benchmark results.
Primary details
Comparing Xeon Silver 4123 and Xeon Gold 6442Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 850 | 97 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 51.89 |
| Market segment | Server | Server |
| Power efficiency | 8.17 | 15.35 |
| Architecture codename | no data | Sapphire Rapids (2023−2024) |
| Release date | 1 January 2018 (6 years ago) | 10 January 2023 (1 year ago) |
| Launch price (MSRP) | no data | $2,065 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon Silver 4123 and Xeon Gold 6442Y 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) | 24 (Tetracosa-Core) |
| Threads | 16 | 48 |
| Base clock speed | 3 GHz | 2.6 GHz |
| Boost clock speed | 3.2 GHz | 4 GHz |
| L1 cache | no data | 80K (per core) |
| L2 cache | no data | 2 MB (per core) |
| L3 cache | 11 MB | 60 MB |
| Chip lithography | 14 nm | Intel 7 nm |
| Maximum case temperature (TCase) | no data | 79 °C |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Xeon Silver 4123 and Xeon Gold 6442Y 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 | no data | 2 |
| 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 6442Y. 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 | + | + |
| AVX | - | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | 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 6442Y 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 6442Y 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 6442Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR5-4800, DDR5-4400 |
| 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 6442Y.
| PCIe version | 3.0 | 5 |
| PCI Express lanes | 48 | 80 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 9.07 | 36.50 |
| Recency | 1 January 2018 | 10 January 2023 |
| Physical cores | 8 | 24 |
| Threads | 16 | 48 |
| Power consumption (TDP) | 105 Watt | 225 Watt |
Xeon Silver 4123 has 114.3% lower power consumption.
Xeon Gold 6442Y, on the other hand, has a 302.4% higher aggregate performance score, an age advantage of 5 years, and 200% more physical cores and 200% more threads.
The Xeon Gold 6442Y is our recommended choice as it beats the Xeon Silver 4123 in performance tests.
Should you still have questions on choice between Xeon Silver 4123 and Xeon Gold 6442Y, 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.
