Ryzen 9 7900X vs Xeon Platinum 8351N
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 178 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Power efficiency | no data | 7.27 |
| Designer | Intel | AMD |
| Manufacturer | Intel | TSMC |
| Architecture codename | Ice Lake-SP (2021) | Raphael (Zen4) (2022−2023) |
| Release date | 6 April 2021 (4 years ago) | 27 September 2022 (2 years ago) |
Detailed specifications
Xeon Platinum 8351N and Ryzen 9 7900X 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 | 36 | 12 (Dodeca-Core) |
| Threads | 72 | 24 |
| Base clock speed | 2.4 GHz | 4.7 GHz |
| Boost clock speed | 3.5 GHz | 5.6 GHz |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 54 MB (shared) | 64 MB (shared) |
| Chip lithography | 10 nm | 5 nm |
| Die size | no data | 2x 70 (CCD) mm2 + 122 (I/O) mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | 76 °C | 47 °C |
| Number of transistors | no data | CCD: 6,5 Mrd + IOD: 3,4 Mrd Million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon Platinum 8351N and Ryzen 9 7900X 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 | 1 |
| Socket | FCLGA4189 | AM5 |
| Power consumption (TDP) | 225 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Platinum 8351N and Ryzen 9 7900X. 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 | 5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Precision Boost 2 | no data | + |
| Deep Learning Boost | + | - |
Security technologies
Xeon Platinum 8351N and Ryzen 9 7900X technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| SGX | Yes with Intel® SPS | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Platinum 8351N and Ryzen 9 7900X 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 Platinum 8351N and Ryzen 9 7900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2933 | DDR5-5200 |
| Maximum memory size | 6 TB | no data |
| Max memory channels | 8 | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon Graphics (Ryzen 7000) |
Peripherals
Specifications and connection of peripherals supported by Xeon Platinum 8351N and Ryzen 9 7900X.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 64 | 24 |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Recency | 6 April 2021 | 27 September 2022 |
| Physical cores | 36 | 12 |
| Threads | 72 | 24 |
| Chip lithography | 10 nm | 5 nm |
| Power consumption (TDP) | 225 Watt | 170 Watt |
Xeon Platinum 8351N has 200% more physical cores and 200% more threads.
Ryzen 9 7900X, on the other hand, has an age advantage of 1 year, a 100% more advanced lithography process, and 32.4% lower power consumption.
We couldn't decide between Intel Xeon Platinum 8351N and AMD Ryzen 9 7900X. We've got no test results to judge.
Be aware that Xeon Platinum 8351N is a server/workstation processor while Ryzen 9 7900X is a desktop one.
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