Xeon 6766P-B vs EPYC 7351P
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 559 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 4.09 | no data |
| Market segment | Server | Server |
| Series | AMD EPYC | no data |
| Power efficiency | 3.52 | no data |
| Designer | AMD | Intel |
| Architecture codename | Naples (2017−2018) | no data |
| Release date | 29 June 2017 (8 years ago) | 1 October 2025 (recently) |
| Launch price (MSRP) | $750 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 7351P and Xeon 6766P-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 | 16 (Hexadeca-Core) | 64 (Tetrahexaconta-Core) |
| Performance-cores | no data | 64 |
| Threads | 32 | 128 |
| Base clock speed | 2.4 GHz | 2.3 GHz |
| Boost clock speed | 2.9 GHz | 3.5 GHz |
| Bus rate | no data | 0 GT/s |
| Multiplier | 24 | no data |
| L1 cache | 96K (per core) | no data |
| L2 cache | 512K (per core) | no data |
| L3 cache | 64 MB (shared) | 256 MB |
| Chip lithography | 14 nm | Intel 3 nm |
| Die size | 192 mm2 | no data |
| Maximum core temperature | 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 7351P and Xeon 6766P-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) | no data |
| Socket | TR4 | no data |
| Power consumption (TDP) | 170 Watt | 305 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7351P and Xeon 6766P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512, Intel® AMX |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | - |
| QuickAssist | no data | + |
| Speed Shift | no data | - |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| Deep Learning Boost | - | + |
Security technologies
EPYC 7351P and Xeon 6766P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7351P and Xeon 6766P-B 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 EPYC 7351P and Xeon 6766P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR5 |
| Maximum memory size | 2 TiB | 2.25 TB |
| Max memory channels | 8 | 8 |
| Maximum memory bandwidth | 170.671 GB/s | no data |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by EPYC 7351P and Xeon 6766P-B.
| PCIe version | 3.0 | Gen4, Gen5 |
| PCI Express lanes | 128 | 48 |
| Integrated LAN | no data | + |
Pros & cons summary
| Recency | 29 June 2017 | 1 October 2025 |
| Physical cores | 16 | 64 |
| Threads | 32 | 128 |
| Power consumption (TDP) | 170 Watt | 305 Watt |
EPYC 7351P has 79.4% lower power consumption.
Xeon 6766P-B, on the other hand, has an age advantage of 8 years, and 300% more physical cores and 300% more threads.
We couldn't decide between AMD EPYC 7351P and Intel Xeon 6766P-B. We've got no test results to judge.
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