Ryzen AI 9 HX PRO 370 vs EPYC 9555
Primary details
Comparing EPYC 9555 and Ryzen AI 9 HX PRO 370 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | no data | Strix Point (Zen 5/5c, Ryzen AI 3/5/7/9) |
| Architecture codename | Turin (2024) | Strix Point-HX PRO (Zen 5/5c) (2025) |
| Release date | 10 October 2024 (less than a year ago) | January 2025 (recently) |
| Launch price (MSRP) | $9,826 | no data |
Detailed specifications
EPYC 9555 and Ryzen AI 9 HX PRO 370 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 | 64 (Tetrahexaconta-Core) | 12 (Dodeca-Core) |
| Threads | 128 | 24 |
| Base clock speed | 3.2 GHz | 2 GHz |
| Boost clock speed | 4.4 GHz | 5.1 GHz |
| Bus rate | no data | 54 MHz |
| L1 cache | 80 KB (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 256 MB (shared) | 16 MB |
| Chip lithography | 4 nm | 4 nm |
| Die size | 8x 70.6 mm2 | no data |
| Number of transistors | 66,520 million | no data |
| 64 bit support | + | - |
Compatibility
Information on EPYC 9555 and Ryzen AI 9 HX PRO 370 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) | 360 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9555 and Ryzen AI 9 HX PRO 370. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | USB 4, XDNA 2 NPU (50 TOPS), SMT, AES, AVX, AVX2, AVX512, FMA3, MMX+, SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9555 and Ryzen AI 9 HX PRO 370 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9555 and Ryzen AI 9 HX PRO 370. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon 890M ( - 2900 MHz) |
Peripherals
Specifications and connection of peripherals supported by EPYC 9555 and Ryzen AI 9 HX PRO 370.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 128 | 16 |
Pros & cons summary
| Physical cores | 64 | 12 |
| Threads | 128 | 24 |
| Power consumption (TDP) | 360 Watt | 28 Watt |
EPYC 9555 has 433.3% more physical cores and 433.3% more threads.
Ryzen AI 9 HX PRO 370, on the other hand, has 1185.7% lower power consumption.
We couldn't decide between EPYC 9555 and Ryzen AI 9 HX PRO 370. We've got no test results to judge.
Be aware that EPYC 9555 is a server/workstation processor while Ryzen AI 9 HX PRO 370 is a notebook one.
Should you still have questions on choice between EPYC 9555 and Ryzen AI 9 HX PRO 370, ask them in Comments section, and we shall answer.
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