Intel® Xeon™ Gold 6138

The Intel Xeon Gold 6138 is a server processor with 20 cores and 40 threads, built on the Skylake architecture. It launched in Jul 2017. Clocks run from 2.0 GHz base to 3.7 GHz boost. A 27.5-MB L3 cache backs the cores (2.4 MB per core). It addresses DDR4 memory up to 768 GB across 6 channels. The chip drops into the FCLGA3647 socket and exposes PCIe 3.0 (48 lanes). Rated TDP is 125 W. Notable platform capabilities: AVX-512, Extended Page Tables (EPT).

The Intel Xeon Gold 6138 scores 2,012 in single-core performance and 23,369 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 6,857 for overall performance, 18,007 for productivity performance, 16,475 for creator performance, 28,335 for engineering performance and 11,878 for gaming performance. Its multi-core throughput works out to 1,168 per core, 584 per thread and 187 per watt. Its computed efficiency index is 613. Its performance index is 85, so its overall performance is 15% below 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 Gold 6138 scores 95,886 in integer math, 59,029 in floating-point math, 417,789 in compression, 8,573 in cryptography, 1,245 in physics simulation, 30,064 in vector SIMD, 93 in the prime sieve and 49,592 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 63% above in integer math, 29% above in floating-point math, 83% above in compression, 25% below in cryptography, 14% above in physics simulation, 94% above in vector SIMD, 39% above in the prime sieve and 119% 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 Gold 6138 has 20 physical cores and runs 40 logical threads. It runs 2 threads per core. It runs at a base clock of 2.00 GHz and boosts up to 3.70 GHz.

The Intel Xeon Gold 6138 is a server processor, belongs to the Intel Xeon Gold family, uses the Skylake architecture, carries the codename Skylake and is manufactured on a 14 nm process. It launched in Jul 2017.

The Intel Xeon Gold 6138 has 1.25 MB of L1 cache, 20 MB of L2 cache and 27.5 MB of L3 cache. That adds up to about 48.8 MB of cache, or 2.44 MB per core. Each core has 1 MB of private L2 cache.

The Intel Xeon Gold 6138 has a 3-level cache hierarchy: L1 at 1.3 MB, L2 at 20 MB and L3 at 27.5 MB. L3 is the largest level and makes up about 56% of the cache listed here.

The Intel Xeon Gold 6138 supports DDR4 memory, addresses up to 768 GB of memory and uses 6 memory channels. It does not support DDR5 and LPDDR memory.

The Intel Xeon Gold 6138 does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Xeon Gold 6138 uses the FCLGA3647 socket, supports PCI Express 3.0 and provides up to 48 PCIe lanes.

The Intel Xeon Gold 6138 has a rated TDP of 125 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 6138 is manufactured by Intel. It launched at a price of $2,612.

The Intel Xeon Gold 6138 is also identified by the model number 6138.

Feex has recorded 56% of the specifications it tracks for the Intel Xeon Gold 6138. 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: 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 FCLGA3647 socket as the Intel Xeon Gold 6138 and have the closest multi-core scores in the Feex database include Intel Xeon Gold 6122, Intel Xeon Silver 4216R, Intel Xeon Platinum P-8124, Intel Xeon Gold 6222V and Intel Xeon Gold 6246.