Ryzen 7 255 vs Apple M5 Max
Aggregate performance score
M5 Max outperforms Ryzen 7 255 by a whopping 100% 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 | 171 | 530 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Power efficiency | no data | 15.45 |
| Designer | Apple | AMD |
| Architecture codename | no data | Hawk Point-H (Zen 4) (2024−2026) |
| Release date | 3 March 2026 (less than a year ago) | 4 August 2025 (1 year ago) |
Detailed specifications
Basic parameters of M5 Max and Ryzen 7 255: 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 | 18 (Octadeca-Core) | 8 (Octa-Core) |
| Threads | 18 | 16 |
| Base clock speed | 3.048 GHz | 3.8 GHz |
| Boost clock speed | 4.61 GHz | 4.95 GHz |
| L1 cache | no data | 512 KB |
| L2 cache | 32 MB | 8 MB |
| L3 cache | 24 MB | 16 MB |
| Chip lithography | 3 nm | 4 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | + | + |
Compatibility
Information on M5 Max and Ryzen 7 255 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.
| Socket | no data | FP7r2/FP8 |
| Power consumption (TDP) | no data | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by M5 Max and Ryzen 7 255. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | USB 4, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A |
| AVX | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by M5 Max and Ryzen 7 255. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 780M ( - 2600 MHz) |
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 | 33.59 | 16.78 |
| Recency | 3 March 2026 | 4 August 2025 |
| Physical cores | 18 | 8 |
| Threads | 18 | 16 |
| Chip lithography | 3 nm | 4 nm |
Apple M5 Max has a 100% higher aggregate performance score, an age advantage of 6 months, 125% more physical cores and 13% more threads, and a 33% more advanced lithography process.
The Apple M5 Max is our recommended choice as it beats the AMD Ryzen 7 255 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
