Intel® Xeon™ Platinum 8351N

The Intel Xeon Platinum 8351N is a server processor with 36 cores and 72 threads, built on the Ice Lake architecture. It launched in Apr 2021. Clocks run from 2.4 GHz base to 3.5 GHz boost. A 54-MB L3 cache backs the cores (2.8 MB per core). It addresses DDR4 memory up to 6 GB across 8 channels. The chip drops into the FCLGA4189 socket and exposes PCIe 4.0 (64 lanes). Rated TDP is 225 W. Notable platform capabilities: AVX-512, Extended Page Tables (EPT).

The Intel Xeon Platinum 8351N scores 2,214 in single-core performance and 49,763 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 10,496 for overall performance, 35,446 for productivity performance, 31,355 for creator performance, 69,668 for engineering performance and 19,083 for gaming performance. Its multi-core throughput works out to 1,382 per core, 691 per thread and 221 per watt. Its computed efficiency index is 700. Its performance index is 130, so its overall performance is 30% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Xeon Platinum 8351N scores 203,032 in integer math, 146,401 in floating-point math, 762,321 in compression, 39,298 in cryptography, 3,087 in physics simulation, 60,894 in vector SIMD, 314 in the prime sieve and 95,137 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 245% above in integer math, 219% above in floating-point math, 234% above in compression, 242% above in cryptography, 183% above in physics simulation, 293% above in vector SIMD, 369% above in the prime sieve and 320% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Xeon Platinum 8351N has 36 physical cores and runs 72 logical threads. It runs 2 threads per core. It runs at a base clock of 2.40 GHz and boosts up to 3.50 GHz.

The Intel Xeon Platinum 8351N is a server processor, belongs to the Intel Xeon Platinum family, uses the Ice Lake architecture, carries the codename Ice Lake and is manufactured on a 10 nm process. It launched in Apr 2021.

The Intel Xeon Platinum 8351N has 160 KB of L1 cache, 45 MB of L2 cache and 54 MB of L3 cache. That adds up to about 99.2 MB of cache, or 2.75 MB per core.

The Intel Xeon Platinum 8351N has a 3-level cache hierarchy: L1 at 160 KB, L2 at 45 MB and L3 at 54 MB. L3 is the largest level and makes up about 54% of the cache listed here.

The Intel Xeon Platinum 8351N supports DDR4 memory, addresses up to 6 GB of memory, uses 8 memory channels, runs memory at up to 2,933 MT/s and delivers up to 187.7 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

The Intel Xeon Platinum 8351N does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Xeon Platinum 8351N uses the FCLGA4189 socket, supports PCI Express 4.0 and provides up to 64 PCIe lanes.

The Intel Xeon Platinum 8351N has a rated TDP of 225 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Xeon Platinum 8351N is manufactured by Intel. It launched at a price of $3,466.

The Intel Xeon Platinum 8351N is also identified by the model number 8351N.

Feex has recorded 58% of the specifications it tracks for the Intel Xeon Platinum 8351N. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: ECC Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCLGA4189 socket as the Intel Xeon Platinum 8351N and have the closest multi-core scores in the Feex database include Intel Xeon Platinum 8347C, Intel Xeon Gold 6314U, Intel Xeon W-3345, Intel Xeon Gold 6348 and Intel Xeon Gold 6342.