Ultra 5 250KF Plus vs Xeon Gold 6434
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 502 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 5.21 | no data |
| Market segment | Server | Desktop processor |
| Power efficiency | 3.48 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | TSMC |
| Architecture codename | Sapphire Rapids (2023−2024) | Arrow Lake Refresh (2026) |
| Release date | 10 January 2023 (3 years ago) | 11 March 2026 (recently) |
| Launch price (MSRP) | $2,607 | $184 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon Gold 6434 and Core Ultra 5 250KF Plus 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) | 18 (Octadeca-Core) |
| Threads | 16 | 18 |
| Base clock speed | 3.7 GHz | 4.2 GHz |
| Boost clock speed | 4.1 GHz | 5.3 GHz |
| L1 cache | 80K (per core) | 192 KB (per core) |
| L2 cache | 2 MB (per core) | 3 MB (per core) |
| L3 cache | 22.5 MB | 30 MB (shared) |
| Chip lithography | Intel 7 nm | 3 nm |
| Die size | no data | 243 mm2 |
| Maximum case temperature (TCase) | 64 °C | no data |
| Number of transistors | no data | 17,800 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon Gold 6434 and Core Ultra 5 250KF Plus 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 | 2 | 1 |
| Socket | FCLGA4677 | 1851 |
| Power consumption (TDP) | 195 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Gold 6434 and Core Ultra 5 250KF Plus. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| SIPP | - | + |
| Deep Learning Boost | + | - |
Security technologies
Xeon Gold 6434 and Core Ultra 5 250KF Plus technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | no data |
| SGX | Yes with Intel® SPS | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Gold 6434 and Core Ultra 5 250KF Plus are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6434 and Core Ultra 5 250KF Plus. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800, DDR5-4400 | DDR5 |
| Maximum memory size | 4 TB | no data |
| Max memory channels | 8 | 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 Gold 6434 and Core Ultra 5 250KF Plus.
| PCIe version | 5 | 5.0 |
| PCI Express lanes | 80 | 24 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Recency | 10 January 2023 | 11 March 2026 |
| Physical cores | 8 | 18 |
| Threads | 16 | 18 |
| Power consumption (TDP) | 195 Watt | 125 Watt |
Ultra 5 250KF Plus has an age advantage of 3 years, 125% more physical cores and 13% more threads, and 56% lower power consumption.
We couldn't decide between Intel Xeon Gold 6434 and Intel Core Ultra 5 250KF Plus. We've got no test results to judge.
Be aware that Xeon Gold 6434 is a server/workstation processor while Core Ultra 5 250KF Plus is a desktop one.
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