Xeon 6503P vs Apple M5 Max
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 165 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Designer | Apple | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | no data | Granite Rapids (2024−2026) |
| Release date | 3 March 2026 (less than a year ago) | 31 May 2026 (less than a year ago) |
| Launch price (MSRP) | no data | $676 |
Detailed specifications
Basic parameters of M5 Max and Xeon 6503P: 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 | 2.8 GHz |
| Boost clock speed | 4.61 GHz | 4.3 GHz |
| L1 cache | no data | 112 KB (per core) |
| L2 cache | 32 MB | 2 MB (per core) |
| L3 cache | 24 MB | 48 MB (shared) |
| Chip lithography | 3 nm | Intel 3 nm |
| Maximum case temperature (TCase) | no data | 78 °C |
| 64 bit support | + | + |
Compatibility
Information on M5 Max and Xeon 6503P 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 | no data | 2 |
| Socket | no data | FCLGA4710 |
| Power consumption (TDP) | no data | 135 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by M5 Max and Xeon 6503P. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
M5 Max and Xeon 6503P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by M5 Max and Xeon 6503P are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by M5 Max and Xeon 6503P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5(6400MT/s) |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by M5 Max and Xeon 6503P.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 88 |
Pros & cons summary
| Recency | 3 March 2026 | 31 May 2026 |
| Physical cores | 18 | 8 |
| Threads | 18 | 16 |
Apple M5 Max has 125% more physical cores and 13% more threads.
Xeon 6503P, on the other hand, has an age advantage of 2 months.
We couldn't decide between Apple M5 Max and Intel Xeon 6503P. We've got no test results to judge.
Be aware that Apple M5 Max is a notebook processor while Xeon 6503P is a server/workstation one.
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