Ryzen 9 8945HX vs Ryzen AI Max PRO 390
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 203 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Power efficiency | 48.56 | no data |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Strix Halo (2025) | Dragon Range (2025) |
| Release date | 6 January 2025 (less than a year ago) | 23 April 2025 (recently) |
Detailed specifications
Ryzen AI Max PRO 390 and Ryzen 9 8945HX 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 | 12 (Dodeca-Core) | 16 (Hexadeca-Core) |
| Threads | 24 | 32 |
| Base clock speed | 3.2 GHz | 2.5 GHz |
| Boost clock speed | 5 GHz | 5.4 GHz |
| L1 cache | 80 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 64 MB (shared) | 64 MB (shared) |
| Chip lithography | 4 nm | 5 nm |
| Die size | no data | 2x 71 mm2 |
| Number of transistors | no data | 13,140 million |
| 64 bit support | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen AI Max PRO 390 and Ryzen 9 8945HX 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 | 1 | 1 |
| Socket | FP11 | FL1 |
| Power consumption (TDP) | 55 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen AI Max PRO 390 and Ryzen 9 8945HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | USB 4, XDNA 2 NPU (50 TOPS), SMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A | no data |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen AI Max PRO 390 and Ryzen 9 8945HX are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen AI Max PRO 390 and Ryzen 9 8945HX. 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 | AMD Radeon 8050S | AMD Radeon 610M |
Peripherals
Specifications and connection of peripherals supported by Ryzen AI Max PRO 390 and Ryzen 9 8945HX.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 16 | 28 |
Pros & cons summary
| Integrated graphics card | 40.41 | 2.70 |
| Recency | 6 January 2025 | 23 April 2025 |
| Physical cores | 12 | 16 |
| Threads | 24 | 32 |
| Chip lithography | 4 nm | 5 nm |
Ryzen AI Max PRO 390 has 1396.7% faster integrated GPU, and a 25% more advanced lithography process.
Ryzen 9 8945HX, on the other hand, has an age advantage of 3 months, and 33.3% more physical cores and 33.3% more threads.
We couldn't decide between AMD Ryzen AI Max PRO 390 and AMD Ryzen 9 8945HX. We've got no test results to judge.
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