Intel® Xeon™ Gold 6403N

The Intel Xeon Gold 6403N is a server processor with 24 cores and 48 threads, built on the Sapphire Rapids architecture. It launched in Jul 2023. Clocks run from 1.9 GHz base to 3.6 GHz boost. A 45-MB L3 cache backs the cores (1.9 MB per core). It addresses DDR5 memory up to 4 GB across 8 channels. The chip drops into the FCLGA4677 socket and exposes PCIe 4.0 (64 lanes). Rated TDP is 185 W. Notable platform capabilities: AMX (Advanced Matrix Extensions), AMX, AVX-512, Extended Page Tables (EPT).

The Intel Xeon Gold 6403N has 24 physical cores and runs 48 logical threads. It runs 2 threads per core. It runs at a base clock of 1.90 GHz and boosts up to 3.60 GHz.

The Intel Xeon Gold 6403N is a server processor, belongs to the Intel Xeon Gold family, uses the Sapphire Rapids architecture and carries the codename Sapphire Rapids Edge Enhanced. It launched in Jul 2023.

The Intel Xeon Gold 6403N has 45 MB of L3 cache. That adds up to about 45.0 MB of cache, or 1.88 MB per core. Feex has no recorded L1 cache size for this processor.

The Intel Xeon Gold 6403N supports DDR5 memory, addresses up to 4 GB of memory and uses 8 memory channels. It does not support DDR4 and LPDDR memory.

The Intel Xeon Gold 6403N does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Xeon Gold 6403N uses the FCLGA4677 socket, supports PCI Express 4.0 and provides up to 64 PCIe lanes.

The Intel Xeon Gold 6403N has a rated TDP of 185 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 Gold 6403N is manufactured by Intel. It launched at a price of $2,012.

The Intel Xeon Gold 6403N is also identified by the model number 6403N.

After an audit, 1 value was corrected on the Intel Xeon Gold 6403N record. Each change is listed with its old value, new value, rule and sources.

• PCIe revision: 4 → 4.0. Rule: Cleanup pcie int to decimal. normalize to the dominant "N.0" format.

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 37% of the specifications it tracks for the Intel Xeon Gold 6403N. 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: L1 Cache (Total), L2 Cache (Total), L2 Cache (per Core) and L4 Cache. Memory Support: Memory Bandwidth, ECC Memory and Max Memory Speed. 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. Performance: single-core and multi-core ratings and all computed performance metrics.

Processors close to the Intel Xeon Gold 6403N in the Feex database, matched by socket, family, segment, architecture, core count, TDP and benchmark scores, include Intel Xeon Gold 5412U, Intel Xeon Gold 5411N, Intel Xeon Gold 5418N, Intel Xeon Gold 6423N and Intel Xeon Gold 5416S.