Ultra 7 256V vs Xeon Silver 4123
Aggregate performance score
Core Ultra 7 256V outperforms Xeon Silver 4123 by an impressive 51% based on our aggregate benchmark results.
Primary details
Comparing Xeon Silver 4123 and Core Ultra 7 256V processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 837 | 531 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Power efficiency | 8.17 | 76.43 |
| Architecture codename | no data | Lunar Lake (2024) |
| Release date | 1 January 2018 (6 years ago) | 24 September 2024 (less than a year ago) |
Detailed specifications
Xeon Silver 4123 and Core Ultra 7 256V 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) | 8 (Octa-Core) |
| Threads | 16 | 8 |
| Base clock speed | 3 GHz | 2.2 GHz |
| Boost clock speed | 3.2 GHz | 4.8 GHz |
| Bus rate | no data | 37 MHz |
| L1 cache | no data | 192 KB (per core) |
| L2 cache | no data | 2.5 MB (per core) |
| L3 cache | 11 MB | 12 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | - | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon Silver 4123 and Core Ultra 7 256V 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 | 1 |
| Socket | FCLGA3647 | Intel BGA 2833 |
| Power consumption (TDP) | 105 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Silver 4123 and Core Ultra 7 256V. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 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 | + | + |
| Turbo Boost Max 3.0 | - | no data |
Security technologies
Xeon Silver 4123 and Core Ultra 7 256V technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Silver 4123 and Core Ultra 7 256V are enumerated here.
| VT-d | no data | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4123 and Core Ultra 7 256V. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR5 |
| Maximum memory size | 512 GB | no data |
| Max memory channels | 6 | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Arc 140V |
Peripherals
Specifications and connection of peripherals supported by Xeon Silver 4123 and Core Ultra 7 256V.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 48 | 4 |
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 | 9.41 | 14.25 |
| Recency | 1 January 2018 | 24 September 2024 |
| Threads | 16 | 8 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 105 Watt | 17 Watt |
Xeon Silver 4123 has 100% more threads.
Ultra 7 256V, on the other hand, has a 51.4% higher aggregate performance score, an age advantage of 6 years, a 366.7% more advanced lithography process, and 517.6% lower power consumption.
The Core Ultra 7 256V is our recommended choice as it beats the Xeon Silver 4123 in performance tests.
Be aware that Xeon Silver 4123 is a server/workstation processor while Core Ultra 7 256V is a notebook one.
Should you still have questions on choice between Xeon Silver 4123 and Core Ultra 7 256V, ask them in Comments section, and we shall answer.
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