Intel® Xeon™ Gold 6126

The Intel Xeon Gold 6126 is a server processor with 12 cores and 24 threads, built on the Skylake architecture. It launched in Jul 2017. Clocks run from 2.6 GHz base to 3.7 GHz boost. A 19.25-MB L3 cache backs the cores (2.6 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 6126 scores 2,140 in single-core performance and 17,492 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 6,118 for overall performance, 14,366 for productivity performance, 13,473 for creator performance, 19,023 for engineering performance and 10,793 for gaming performance. Its multi-core throughput works out to 1,458 per core, 729 per thread and 140 per watt. Its computed efficiency index is 547. Its performance index is 76, so its overall performance is 24% 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 6126 scores 71,350 in integer math, 43,315 in floating-point math, 305,239 in compression, 5,664 in cryptography, 856 in physics simulation, 21,982 in vector SIMD, 64 in the prime sieve and 37,241 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 21% above in integer math, 6% below in floating-point math, 34% above in compression, 51% below in cryptography, 21% below in physics simulation, 42% above in vector SIMD, 4% below in the prime sieve and 64% 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 6126 has 12 physical cores and runs 24 logical threads. It runs 2 threads per core. It runs at a base clock of 2.60 GHz and boosts up to 3.70 GHz.

The Intel Xeon Gold 6126 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 6126 has 256 KB of L1 cache, 12 MB of L2 cache and 19.3 MB of L3 cache. That adds up to about 31.5 MB of cache, or 2.63 MB per core.

The Intel Xeon Gold 6126 has a 3-level cache hierarchy: L1 at 256 KB, L2 at 12 MB and L3 at 19.3 MB. L3 is the largest level and makes up about 61% of the cache listed here.

The Intel Xeon Gold 6126 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 6126 does not include integrated graphics, so a discrete graphics card is required for display output.

The Intel Xeon Gold 6126 uses the FCLGA3647 socket, supports PCI Express 3.0 and provides up to 48 PCIe lanes.

The Intel Xeon Gold 6126 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 6126 is manufactured by Intel. It launched at a price of $1,776.

The Intel Xeon Gold 6126 is also identified by the model number 6126.

Feex has recorded 55% of the specifications it tracks for the Intel Xeon Gold 6126. 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: 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 6126 and have the closest multi-core scores in the Feex database include Intel Xeon Silver 4214R, Intel Xeon Gold 6234, Intel Xeon W-3223, Intel Xeon Gold 5117 and Intel Xeon Gold 6144.