Xeon 6503P-B vs EPYC 7401P
Primary details
Comparing EPYC 7401P and Xeon 6503P-B processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 384 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 4.22 | no data |
| Market segment | Server | Server |
| Series | AMD EPYC | no data |
| Power efficiency | 9.72 | no data |
| Designer | AMD | Intel |
| Architecture codename | Naples (2017−2018) | Granite Rapids (2024−2025) |
| Release date | 29 June 2017 (7 years ago) | 24 February 2025 (recently) |
| Launch price (MSRP) | $1,075 | $934 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 7401P and Xeon 6503P-B 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 | 24 (Tetracosa-Core) | 12 (Dodeca-Core) |
| Threads | 48 | 24 |
| Base clock speed | 2 GHz | 2 GHz |
| Boost clock speed | 3 GHz | 3.5 GHz |
| Multiplier | 20 | no data |
| L1 cache | 96K (per core) | 112 KB (per core) |
| L2 cache | 512K (per core) | 2 MB (per core) |
| L3 cache | 64 MB (shared) | 48 MB (shared) |
| Chip lithography | 14 nm | 5 nm |
| Die size | 192 mm2 | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| Number of transistors | 4,800 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on EPYC 7401P and Xeon 6503P-B 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 (Uniprocessor) | 2 |
| Socket | TR4 | Intel BGA 4368 |
| Power consumption (TDP) | 170 Watt | 110 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7401P and Xeon 6503P-B. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| TSX | - | + |
Security technologies
EPYC 7401P and Xeon 6503P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7401P and Xeon 6503P-B are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7401P and Xeon 6503P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR5 |
| Maximum memory size | 2 TiB | no data |
| Max memory channels | 8 | no data |
| Maximum memory bandwidth | 170.671 GB/s | no data |
| 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 EPYC 7401P and Xeon 6503P-B.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 128 | 32 |
Pros & cons summary
| Recency | 29 June 2017 | 24 February 2025 |
| Physical cores | 24 | 12 |
| Threads | 48 | 24 |
| Chip lithography | 14 nm | 5 nm |
| Power consumption (TDP) | 170 Watt | 110 Watt |
EPYC 7401P has 100% more physical cores and 100% more threads.
Xeon 6503P-B, on the other hand, has an age advantage of 7 years, a 180% more advanced lithography process, and 54.5% lower power consumption.
We couldn't decide between AMD EPYC 7401P and Intel Xeon 6503P-B. We've got no test results to judge.
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