Feex·CPU
Intel · Xeon Gold · Server

Intel® Xeon™ Gold 6138P

The Intel Xeon Gold 6138P is a server processor released on April 1, 2018, built on the Skylake architecture using a 14 nm process. It has 20 cores and 40 threads, a base clock of 2.00 GHz, a maximum boost of 3.70 GHz, 28 MB of L3 cache, a 195 W TDP and the FCLGA3647 socket.

Cores
20
Threads
40
Boost Clock
3.7 GHz
Base Clock
2.0 GHz
Architecture
Skylake
Socket
FCLGA3647
TDP
195 W
L3 Cache
27.5 MB
Core layout
PPPPPPPPPPPPPPPPPPPP
20 Performance 40 Threads
Notable capabilities:AVX-512Extended Page Tables (EPT)

Best for

Server / professional infrastructure

Overview

The Intel Xeon Gold 6138P is a server processor with 20 cores and 40 threads, built on the Skylake architecture. It launched in Apr 2018. 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 195 W. Notable platform capabilities: AVX-512, Extended Page Tables (EPT).

Core Configuration

Cores
20
Threads
40
Threads per Core
2
Base Clock
2.0 GHz
Boost Clock
3.7 GHz

The Intel Xeon Gold 6138P 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.

Architecture & Generation

Manufacturer
Intel
Family
Xeon Gold
Segment
Server
Generation
Intel Xeon Scalable Processors
Architecture
Skylake
Codename
Skylake
Lithography
14 nm
Release Date
Apr 2018

The Intel Xeon Gold 6138P 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 Apr 2018.

Cache

L2 Cache (Total)
20 MB
L3 Cache
27.5 MB
Cache per Core
2.4 MB
Total Cache
47.5 MB

The Intel Xeon Gold 6138P has 20 MB of L2 cache and 27.5 MB of L3 cache. That adds up to about 47.5 MB of cache, or 2.38 MB per core. Feex has no recorded L1 cache size for this processor.

Cache Hierarchy

L2L3
L2 20 MBL3 27.5 MB

The Intel Xeon Gold 6138P has a 2-level cache hierarchy: L2 at 20 MB and L3 at 27.5 MB. L3 is the largest level and makes up about 58% 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 6138P 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 6138P 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 6138P uses the FCLGA3647 socket, supports PCI Express 3.0 and provides up to 48 PCIe lanes.

Power & Thermals

TDP
195 W

The Intel Xeon Gold 6138P has a rated TDP of 195 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

7 supported
Supported
AES-NIAVX-512AVX2AVXFMASHA64-bit (x86-64)
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 6138P supports AES-NI, AVX-512, AVX2, AVX, FMA, SHA and 64-bit (x86-64) 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 6138P 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 6138P 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 6138P as Windows 11 eligible.

Physical & Manufacturing

Launch Price
$4,937

The Intel Xeon Gold 6138P is manufactured by Intel. It launched at a price of $4,937.

Naming & Aliases

Display Name
Intel® Xeon™ Gold 6138P
Model Number
6138P
Product line brand
Xeon

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

Real-world compute in the Feex fleet

No Feex fleet machines with the Intel Xeon Gold 6138P 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 40% of the specifications it tracks for the Intel Xeon Gold 6138P. 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 (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.

Common questions

How many cores and threads does the Intel Xeon Gold 6138P have?

The Intel Xeon Gold 6138P has 20 cores and 40 threads.

What architecture does the Intel Xeon Gold 6138P use?

The Intel Xeon Gold 6138P is built on the Skylake architecture.

Does the Intel Xeon Gold 6138P have integrated graphics?

No. The Intel Xeon Gold 6138P does not include integrated graphics.

What socket does the Intel Xeon Gold 6138P use?

The Intel Xeon Gold 6138P uses the FCLGA3647 socket.

What memory does the Intel Xeon Gold 6138P support?

The Intel Xeon Gold 6138P supports DDR4 up to 768 GB across 6 channels.

How fast does the Intel Xeon Gold 6138P run?

The Intel Xeon Gold 6138P can boost up to 3.7 GHz, with a 2.0 GHz base clock.

What is the TDP of the Intel Xeon Gold 6138P?

The Intel Xeon Gold 6138P has a TDP of 195 W.

What advanced capabilities does the Intel Xeon Gold 6138P support?

Notable platform capabilities reported for the Intel Xeon Gold 6138P include AVX-512, Extended Page Tables (EPT).

What is the Intel Xeon Gold 6138P best for?

Based on its specifications, the Intel Xeon Gold 6138P is well suited for Server / professional infrastructure.

How much cache does the Intel Xeon Gold 6138P have?

The Intel Xeon Gold 6138P has 20480 KB of L2 cache and 27.5 MB of L3 cache.

Which features does the Intel Xeon Gold 6138P not support?

The Intel Xeon Gold 6138P does not support AMX.