Ryzen AI 9 HX PRO 375 vs EPYC 9255
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 283 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Power efficiency | no data | 70.36 |
| Designer | AMD | AMD |
| Architecture codename | Turin (2024) | Strix Point (2024−2025) |
| Release date | 10 October 2024 (less than a year ago) | 6 January 2025 (less than a year ago) |
| Launch price (MSRP) | $2,495 | no data |
Detailed specifications
EPYC 9255 and Ryzen AI 9 HX PRO 375 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 | 24 (Tetracosa-Core) | 12 (Dodeca-Core) |
| Threads | 48 | 24 |
| Base clock speed | 3.25 GHz | 2 GHz |
| Boost clock speed | 4.8 GHz | 5.1 GHz |
| L1 cache | 80 KB (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 128 MB (shared) | 16 MB |
| Chip lithography | 4 nm | 4 nm |
| Die size | 4x 70.6 mm2 | 233 mm2 |
| Number of transistors | 33,260 million | no data |
| 64 bit support | + | + |
Compatibility
Information on EPYC 9255 and Ryzen AI 9 HX PRO 375 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 | SP5 | FP8 |
| Power consumption (TDP) | 200 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9255 and Ryzen AI 9 HX PRO 375. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9255 and Ryzen AI 9 HX PRO 375 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9255 and Ryzen AI 9 HX PRO 375. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5, LPDDR5X |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon 890M |
Peripherals
Specifications and connection of peripherals supported by EPYC 9255 and Ryzen AI 9 HX PRO 375.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 128 | 16 |
Pros & cons summary
| Recency | 10 October 2024 | 6 January 2025 |
| Physical cores | 24 | 12 |
| Threads | 48 | 24 |
| Power consumption (TDP) | 200 Watt | 28 Watt |
EPYC 9255 has 100% more physical cores and 100% more threads.
Ryzen AI 9 HX PRO 375, on the other hand, has an age advantage of 2 months, and 614.3% lower power consumption.
We couldn't decide between AMD EPYC 9255 and AMD Ryzen AI 9 HX PRO 375. We've got no test results to judge.
Be aware that EPYC 9255 is a server/workstation processor while Ryzen AI 9 HX PRO 375 is a notebook one.
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