EPYC 7501 vs Xeon 6521P
Aggregate performance score
Xeon 6521P outperforms EPYC 7501 by a whopping 160% 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 | 95 | 547 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.91 |
| Market segment | Server | Server |
| Series | no data | AMD EPYC |
| Power efficiency | 6.93 | 3.53 |
| Designer | Intel | AMD |
| Architecture codename | no data | Naples (2017−2018) |
| Release date | 1 January 2025 (less than a year ago) | 29 June 2017 (8 years ago) |
| Launch price (MSRP) | no data | $3,400 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon 6521P and EPYC 7501 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) | 32 (Dotriaconta-Core) |
| Threads | 48 | 64 |
| Base clock speed | 2.6 GHz | 2 GHz |
| Boost clock speed | 4.1 GHz | 3 GHz |
| Multiplier | no data | 20 |
| L1 cache | no data | 96K (per core) |
| L2 cache | no data | 512K (per core) |
| L3 cache | 144 MB | 64 MB (shared) |
| Chip lithography | Intel 3 nm | 14 nm |
| Die size | no data | 192 mm2 |
| Maximum core temperature | 82 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | - | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon 6521P and EPYC 7501 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 (Multiprocessor) |
| Socket | FCLGA4710 | TR4 |
| Power consumption (TDP) | 225 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 6521P and EPYC 7501. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512, Intel® AMX | no data |
| AES-NI | + | + |
| AVX | - | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Deep Learning Boost | + | - |
Security technologies
Xeon 6521P and EPYC 7501 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 Xeon 6521P and EPYC 7501 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon 6521P and EPYC 7501. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5(6400MT/s) | DDR4 Eight-channel |
| Maximum memory size | 4 TB | 2 TiB |
| Max memory channels | 8 | 8 |
| Maximum memory bandwidth | no data | 170.671 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon 6521P and EPYC 7501.
| PCIe version | 5.0 | 3.0 |
| PCI Express lanes | 136 | 128 |
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 | 36.87 | 14.18 |
| Recency | 1 January 2025 | 29 June 2017 |
| Physical cores | 24 | 32 |
| Threads | 48 | 64 |
| Power consumption (TDP) | 225 Watt | 170 Watt |
Xeon 6521P has a 160% higher aggregate performance score, and an age advantage of 7 years.
EPYC 7501, on the other hand, has 33.3% more physical cores and 33.3% more threads, and 32.4% lower power consumption.
The Intel Xeon 6521P is our recommended choice as it beats the AMD EPYC 7501 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.
