Feex·CPU
Intel · Xeon Gold · Server

Intel® Xeon™ Gold 6126T

The Intel Xeon Gold 6126T is a server processor released on July 1, 2017, built on the Skylake architecture using a 14 nm process. It has 12 cores and 24 threads, a base clock of 2.60 GHz, a maximum boost of 3.70 GHz, 19 MB of L3 cache, a 125 W TDP and the FCLGA3647 socket.

Cores
12
Threads
24
Boost Clock
3.7 GHz
Base Clock
2.6 GHz
Architecture
Skylake
Socket
FCLGA3647
TDP
125 W
L3 Cache
19.3 MB
Core layout
PPPPPPPPPPPP
12 Performance 24 Threads
Notable capabilities:AVX-512Extended Page Tables (EPT)

Best for

Server / professional infrastructure

Overview

The Intel Xeon Gold 6126T 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).

Performance

Overall CPU Performance computed
6,741
27% of reference
Reference ceiling 25,000
Multi-Core Performance PassMark rating
20,852
17% of reference
Reference ceiling 120,000
Single-Core Performance PassMark rating
2,179
40% of reference
Reference ceiling 5,500
Productivity Performance computed
16,604
10% of reference
Reference ceiling 160,000
Creator Performance computed
15,391
11% of reference
Reference ceiling 140,000
Engineering Performance computed
22,677
11% of reference
Reference ceiling 200,000
Gaming Performance computed
11,750
53% of reference
Reference ceiling 22,000
Performance per Core computed
1,738
8% of reference
Reference ceiling 21,053
Performance per Thread computed
869
8% of reference
Reference ceiling 10,527
Performance per Watt computed
167
8% of reference
Reference ceiling 2,000
Efficiency Index computed
603
15% of reference
Reference ceiling 4,000
Performance index computed
84
Intel Core i5-12400 = 100

The Intel Xeon Gold 6126T scores 2,179 in single-core performance and 20,852 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 6,741 for overall performance, 16,604 for productivity performance, 15,391 for creator performance, 22,677 for engineering performance and 11,750 for gaming performance. Its multi-core throughput works out to 1,738 per core, 869 per thread and 167 per watt. Its computed efficiency index is 603. Its performance index is 84, so its overall performance is 16% 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.

How these scores are computed

Single-core and multi-core performance are PassMark CPU Mark single-thread and multi-thread ratings. Every other figure on this page's performance section is computed by Feex from those two ratings plus core count, thread count and TDP, so it is a derived value and not a separate benchmark run.

  • Overall performance is the geometric mean of the two ratings: the square root of single-core times multi-core.
  • Productivity performance is 0.65 times multi-core plus 1.4 times single-core.
  • Creator performance is 0.55 times multi-core plus 1.8 times single-core.
  • Engineering performance is multi-core times the smaller of 1.4 and (0.9 plus cores divided by 64).
  • Gaming performance is 3 times single-core plus 0.25 times multi-core.
  • Performance per core, per thread and per watt divide the multi-core rating by physical cores, logical threads and TDP in watts.
  • The efficiency index is the square root of single-core times multi-core, divided by the square root of TDP.
  • The performance index is overall performance divided by the overall performance of the Intel Core i5-12400 (8,069), times 100.

Workload Benchmarks

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.

Integer Math Throughput
72,719
12% of reference
Reference ceiling 617,811
23% above the Intel Core i5-12400 (58,893)
Raw integer arithmetic throughput across cores.
Floating-Point Math
44,586
7% of reference
Reference ceiling 600,000
3% below the Intel Core i5-12400 (45,899)
Heavy floating-point math, mixed precision.
Compression Performance
317,808
14% of reference
Reference ceiling 2,309,868
39% above the Intel Core i5-12400 (228,054)
Throughput on lossless compression workloads.
Cryptography Performance
7,594
6% of reference
Reference ceiling 137,106
34% below the Intel Core i5-12400 (11,489)
Symmetric encryption and hashing throughput.
Physics Simulation
1,266
10% of reference
Reference ceiling 12,291
16% above the Intel Core i5-12400 (1,090)
Iterative physics & rigid-body simulation.
Vector / SIMD Throughput
23,189
13% of reference
Reference ceiling 172,975
50% above the Intel Core i5-12400 (15,509)
Wide-vector SIMD intrinsics performance.
Prime Sieve
92
9% of reference
Reference ceiling 1,067
37% above the Intel Core i5-12400 (67)
Searching for prime numbers (branch-heavy work).
Sort Performance
39,290
15% of reference
Reference ceiling 260,323
73% above the Intel Core i5-12400 (22,652)
Random string sorting throughput.

In the individual workload tests the Intel Xeon Gold 6126T scores 72,719 in integer math, 44,586 in floating-point math, 317,808 in compression, 7,594 in cryptography, 1,266 in physics simulation, 23,189 in vector SIMD, 92 in the prime sieve and 39,290 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 23% above in integer math, 3% below in floating-point math, 39% above in compression, 34% below in cryptography, 16% above in physics simulation, 50% above in vector SIMD, 37% above in the prime sieve and 73% 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.

Core Configuration

Cores
12
Threads
24
Threads per Core
2
Base Clock
2.6 GHz
Boost Clock
3.7 GHz

The Intel Xeon Gold 6126T 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.

Architecture & Generation

Manufacturer
Intel
Family
Xeon Gold
Segment
Server
Generation
Intel Xeon Scalable Processors
Architecture
Skylake
Codename
Skylake
Lithography
14 nm
Release Date
Jul 2017

The Intel Xeon Gold 6126T 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.

Cache

L1 Cache (Total)
512 KB
L2 Cache (Total)
12 MB
L3 Cache
19.3 MB
Cache per Core
2.6 MB
Total Cache
31.8 MB

The Intel Xeon Gold 6126T has 512 KB of L1 cache, 12 MB of L2 cache and 19.3 MB of L3 cache. That adds up to about 31.8 MB of cache, or 2.65 MB per core.

Cache Hierarchy

L1L2L3
L1 512 KBL2 12 MBL3 19.3 MB

The Intel Xeon Gold 6126T has a 3-level cache hierarchy: L1 at 512 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.

Memory Support

Max Memory
768 GB
Memory Channels
6
Memory Types
DDR4
DDR5 Support
No
DDR4 Support
Yes
LPDDR Support
No

The Intel Xeon Gold 6126T supports DDR4 memory, addresses up to 768 GB of memory and uses 6 memory channels. It does not support DDR5 and LPDDR memory.

Graphics

Integrated Graphics
No

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

Platform & Compatibility

Socket
FCLGA3647
PCIe Generation
3.0
PCIe Lanes
48

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

Power & Thermals

TDP
125 W

The Intel Xeon Gold 6126T has a rated TDP of 125 W.

Platform Capabilities

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.

Instruction Sets

8 supported
Supported
AES-NIAVX-512AVX2AVXFMASHA64-bit (x86-64)SSE4.2
Not supported
AMX
Not recorded
AVX-VNNICETCET-IBTCET-SSFMA3Hyper-Threading

Security and Reliability

5 supported
Supported
Execute Disable (NX)Boot GuardSGXTrusted ExecutionMode-Based Execute Control
Not recorded
AES-NIControl-flow Enforcement (CET)Hardware RNGHardware ShieldOS GuardOS Guard (SMAP)

Virtualization

3 supported
Supported
Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
Not recorded
VT-x with EPTIOMMUSecond-Level Address TranslationUnrestricted Guest

OS Compatibility

1 supported
Supported
Windows 11 eligible

The Intel Xeon Gold 6126T supports AES-NI, AVX-512, AVX2, AVX, FMA, SHA, 64-bit (x86-64) and SSE4.2 among its instruction set features. It does not support AMX. Feex has no record for AVX-VNNI, CET, CET-IBT, CET-SS, FMA3 and Hyper-Threading, which is different from being unsupported.

The Intel Xeon Gold 6126T supports Execute Disable (NX), Boot Guard, SGX, Trusted Execution and Mode-Based Execute Control among its security features. Feex has no record for AES-NI, Control-flow Enforcement (CET), Hardware RNG, Hardware Shield, OS Guard and OS Guard (SMAP), which is different from being unsupported.

The Intel Xeon Gold 6126T supports Extended Page Tables (EPT), VT-d (DMA Remapping) and VT-x (Hardware Virtualization) among its virtualization features. Feex has no record for VT-x with EPT, IOMMU, Second-Level Address Translation and Unrestricted Guest, which is different from being unsupported.

Feex records the Intel Xeon Gold 6126T as Windows 11 eligible.

Physical & Manufacturing

Launch Price
$1,865

The Intel Xeon Gold 6126T is manufactured by Intel. It launched at a price of $1,865.

Naming & Aliases

Display Name
Intel® Xeon™ Gold 6126T
Model Number
6126T
Product line brand
Xeon

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

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon Gold 6126T have reported compute telemetry yet, so real-world compute for this processor is not recorded.

How fleet compute is measured · Fleet compute leaderboard · JSON

Data Coverage

Feex has recorded 55% of the specifications it tracks for the Intel Xeon Gold 6126T. 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.

Common questions

How many cores and threads does the Intel Xeon Gold 6126T have?

The Intel Xeon Gold 6126T has 12 cores and 24 threads.

What architecture does the Intel Xeon Gold 6126T use?

The Intel Xeon Gold 6126T is built on the Skylake architecture.

Does the Intel Xeon Gold 6126T have integrated graphics?

No. The Intel Xeon Gold 6126T does not include integrated graphics.

What socket does the Intel Xeon Gold 6126T use?

The Intel Xeon Gold 6126T uses the FCLGA3647 socket.

What memory does the Intel Xeon Gold 6126T support?

The Intel Xeon Gold 6126T supports DDR4 up to 768 GB across 6 channels.

How fast does the Intel Xeon Gold 6126T run?

The Intel Xeon Gold 6126T can boost up to 3.7 GHz, with a 2.6 GHz base clock.

What is the TDP of the Intel Xeon Gold 6126T?

The Intel Xeon Gold 6126T has a TDP of 125 W.

How does the Intel Xeon Gold 6126T perform?

In the Feex normalized performance dataset, the Intel Xeon Gold 6126T scores 20,852 multi-core and 2,179 single-core.

What advanced capabilities does the Intel Xeon Gold 6126T support?

Notable platform capabilities reported for the Intel Xeon Gold 6126T include AVX-512, Extended Page Tables (EPT).

What is the Intel Xeon Gold 6126T best for?

Based on its specifications, the Intel Xeon Gold 6126T is well suited for Server / professional infrastructure.

How much cache does the Intel Xeon Gold 6126T have?

The Intel Xeon Gold 6126T has 512 KB of L1 cache, 12288 KB of L2 cache and 19.25 MB of L3 cache.

How does the Intel Xeon Gold 6126T compare with the Intel Core i5-12400?

The Intel Xeon Gold 6126T has a computed performance index of 84, which is 16% below the Intel Core i5-12400 (index 100). The index is derived from the single-core and multi-core ratings.

Which features does the Intel Xeon Gold 6126T not support?

The Intel Xeon Gold 6126T does not support AMX.