Ultra 7 251HX vs EPYC Embedded 9654P
Aggregate performance score
EPYC Embedded 9654P outperforms Core Ultra 7 251HX by a whopping 140% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 23 | 244 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | no data | Intel Arrow Lake |
| Power efficiency | 7.80 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Genoa (2022−2023) | Arrow Lake-HX (2025−2026) |
| Release date | 14 March 2023 (3 years ago) | 1 April 2026 (less than a year ago) |
Detailed specifications
Basic parameters of EPYC Embedded 9654P and Core Ultra 7 251HX: 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 | 96 | 18 (Octadeca-Core) |
| Threads | 192 | 18 |
| Base clock speed | 2.4 GHz | 2.5 GHz |
| Boost clock speed | 3.7 GHz | 5.1 GHz |
| L1 cache | 64 KB (per core) | no data |
| L2 cache | 1 MB (per core) | 30 MB |
| L3 cache | 384 MB (shared) | 30 MB |
| Chip lithography | 5 nm | 3 nm |
| Die size | 12x 72 mm2 | no data |
| Number of transistors | 78,840 million | no data |
| 64 bit support | + | + |
Compatibility
Information on EPYC Embedded 9654P and Core Ultra 7 251HX 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 | no data |
| Socket | SP5 | no data |
| Power consumption (TDP) | 360 Watt | no data |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC Embedded 9654P and Core Ultra 7 251HX. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| AVX | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC Embedded 9654P and Core Ultra 7 251HX are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 9654P and Core Ultra 7 251HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel Graphics 4-Core iGPU (Meteor / Arrow Lake) (300 - 1800 MHz) |
Peripherals
Specifications and connection of peripherals supported by EPYC Embedded 9654P and Core Ultra 7 251HX.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 128 | no data |
Synthetic benchmarks
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.
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
| Performance score | 68.40 | 28.50 |
| Recency | 14 March 2023 | 1 April 2026 |
| Physical cores | 96 | 18 |
| Threads | 192 | 18 |
| Chip lithography | 5 nm | 3 nm |
EPYC Embedded 9654P has a 140% higher aggregate performance score, and 433% more physical cores and 967% more threads.
Ultra 7 251HX, on the other hand, has an age advantage of 3 years, and a 67% more advanced lithography process.
The AMD EPYC Embedded 9654P is our recommended choice as it beats the Intel Core Ultra 7 251HX in performance tests.
Be aware that EPYC Embedded 9654P is a server/workstation processor while Core Ultra 7 251HX is a notebook one.
Other comparisons
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