EPYC Embedded 3151 vs Xeon 6521P
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 95 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | no data | AMD EPYC Embedded |
| Power efficiency | 6.93 | no data |
| Designer | Intel | AMD |
| Manufacturer | no data | GlobalFoundries |
| Architecture codename | no data | Zen (2017−2020) |
| Release date | 1 January 2025 (less than a year ago) | 21 February 2018 (7 years ago) |
Detailed specifications
Xeon 6521P and EPYC Embedded 3151 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) | 4 (Quad-Core) |
| Threads | 48 | 8 |
| Base clock speed | 2.6 GHz | 2.7 GHz |
| Boost clock speed | 4.1 GHz | 2.9 GHz |
| Multiplier | no data | 27 |
| L1 cache | no data | 96K (per core) |
| L2 cache | no data | 512K (per core) |
| L3 cache | 144 MB | 16 MB (shared) |
| Chip lithography | Intel 3 nm | 14 nm |
| Die size | no data | 213 mm2 |
| Maximum core temperature | 82 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | - | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on Xeon 6521P and EPYC Embedded 3151 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 | 1 (Uniprocessor) |
| Socket | FCLGA4710 | AMD BGA SP4r2 |
| Power consumption (TDP) | 225 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 6521P and EPYC Embedded 3151. 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 Embedded 3151 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 Embedded 3151 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 Embedded 3151. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5(6400MT/s) | DDR4-2666 |
| Maximum memory size | 4 TB | 512 GB |
| Max memory channels | 8 | 2 |
| Maximum memory bandwidth | no data | 42.671 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon 6521P and EPYC Embedded 3151.
| PCIe version | 5.0 | 3.0 |
| PCI Express lanes | 136 | 32 |
Pros & cons summary
| Recency | 1 January 2025 | 21 February 2018 |
| Physical cores | 24 | 4 |
| Threads | 48 | 8 |
| Power consumption (TDP) | 225 Watt | 45 Watt |
Xeon 6521P has an age advantage of 6 years, and 500% more physical cores and 500% more threads.
EPYC Embedded 3151, on the other hand, has 400% lower power consumption.
We couldn't decide between Intel Xeon 6521P and AMD EPYC Embedded 3151. We've got no test results to judge.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
