Intel® Xeon™ w5-2555X

The Intel Xeon w5-2555X is a workstation processor with 14 cores and 28 threads, built on the Sapphire Rapids architecture. It launched in Jul 2024. Clocks run from 3.3 GHz base to 4.8 GHz boost. A 33.75-MB L3 cache backs the cores (4.5 MB per core). It addresses DDR5 memory up to 2 GB across 4 channels. The chip drops into the FCLGA4677 socket and exposes PCIe 5.0 (64 lanes). Rated TDP is 210 W. Notable platform capabilities: AMX, AVX-512, Extended Page Tables (EPT), Control-flow Enforcement (CET).

The Intel Xeon w5-2555X scores 3,600 in single-core performance and 47,193 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 13,034 for overall performance, 35,715 for productivity performance, 32,436 for creator performance, 52,797 for engineering performance and 22,598 for gaming performance. Its multi-core throughput works out to 3,371 per core, 1,685 per thread and 225 per watt. Its computed efficiency index is 900. Its performance index is 162, so its overall performance is 62% 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 w5-2555X scores 155,777 in integer math, 121,965 in floating-point math, 608,410 in compression, 30,515 in cryptography, 3,094 in physics simulation, 49,556 in vector SIMD, 219 in the prime sieve and 64,868 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 165% above in integer math, 166% above in floating-point math, 167% above in compression, 166% above in cryptography, 184% above in physics simulation, 220% above in vector SIMD, 227% above in the prime sieve and 186% 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 w5-2555X has 14 physical cores and runs 28 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 3.30 GHz and boosts up to 4.80 GHz.

The Intel Xeon w5-2555X is a workstation processor, belongs to the Intel Xeon W family, uses the Sapphire Rapids architecture and carries the codename Sapphire Rapids. It launched in Jul 2024.

The Intel Xeon w5-2555X has 1.09 MB of L1 cache, 28 MB of L2 cache and 33.8 MB of L3 cache. That adds up to about 62.8 MB of cache, or 4.49 MB per core. Each core has 2 MB of private L2 cache.

The Intel Xeon w5-2555X has a 3-level cache hierarchy: L1 at 1.1 MB, L2 at 28 MB and L3 at 33.8 MB. L3 is the largest level and makes up about 54% of the cache listed here.

The Intel Xeon w5-2555X supports DDR5 memory, addresses up to 2 GB of memory and uses 4 memory channels. It does not support DDR4 and LPDDR memory.

The Intel Xeon w5-2555X does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Xeon w5-2555X uses the FCLGA4677 socket, supports PCI Express 5.0 and provides up to 64 PCIe lanes.

The Intel Xeon w5-2555X has a rated TDP of 210 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 w5-2555X is manufactured by Intel. It launched at a price of $1,176.

The Intel Xeon w5-2555X is also identified by the model number w5-2555X.

Feex has recorded 58% of the specifications it tracks for the Intel Xeon w5-2555X. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: 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.

Processors that use the same FCLGA4677 socket as the Intel Xeon w5-2555X and have the closest multi-core scores in the Feex database include Intel Xeon w5-3525, Intel Xeon Gold 5418Y, Intel Xeon Gold 6530, Intel Xeon w7-3445 and Intel Xeon Gold 6444Y.