Ryzen AI Max PRO 490 vs EPYC 9255
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 79 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 11.55 | no data |
| Market segment | Server | Laptop |
| Series | no data | AMD Strix / Gorgon Halo |
| Power efficiency | 9.20 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Turin (2024) | Gorgon Halo PRO (2026) |
| Release date | 10 October 2024 (1 year ago) | 21 May 2026 (less than a year ago) |
| Launch price (MSRP) | $2,495 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of EPYC 9255 and Ryzen AI Max PRO 490: 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 | 3.2 GHz |
| Boost clock speed | 4.8 GHz | 5 GHz |
| L1 cache | 80 KB (per core) | no data |
| L2 cache | 1 MB (per core) | 12 MB |
| L3 cache | 128 MB (shared) | 64 MB |
| Chip lithography | 4 nm | 4 nm |
| Die size | 4x 70.6 mm2 | no data |
| Number of transistors | 33,260 million | no data |
| 64 bit support | + | + |
Compatibility
Information on EPYC 9255 and Ryzen AI Max PRO 490 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 | FP11 |
| Power consumption (TDP) | 200 Watt | no data |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9255 and Ryzen AI Max PRO 490. 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 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9255 and Ryzen AI Max PRO 490 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9255 and Ryzen AI Max PRO 490. 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 8050S ( - 2800 MHz) |
Peripherals
Specifications and connection of peripherals supported by EPYC 9255 and Ryzen AI Max PRO 490.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 128 | no data |
Pros & cons summary
| Recency | 10 October 2024 | 21 May 2026 |
| Physical cores | 24 | 12 |
| Threads | 48 | 24 |
EPYC 9255 has 100% more physical cores and 100% more threads.
Ryzen AI Max PRO 490, on the other hand, has an age advantage of 1 year.
We couldn't decide between AMD EPYC 9255 and AMD Ryzen AI Max PRO 490. We've got no test results to judge.
Be aware that EPYC 9255 is a server/workstation processor while Ryzen AI Max PRO 490 is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
