Intel Xeon Gold 6138P: specs and benchmarks

Summary

Intel started Xeon Gold 6138P sales 16 May 2018 at a recommended price of $4,937. This is a Skylake (server) architecture desktop processor primarily aimed at professional systems. It has 20 cores and 40 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 3700 MHz and a locked multiplier.

Compatibility-wise, this is FCLGA3647 processor with a TDP of 195 Watt. It supports DDR4-2666 memory.

Primary details

Xeon Gold 6138P processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the ranking	not rated
Place by popularity	not in top-100
Market segment	Server
Series	Intel Xeon Gold
Architecture codename	Skylake (server) (2017−2018)
Release date	16 May 2018 (6 years ago)
Launch price (MSRP)	$4,937	of 17,906 (Xeon Platinum 8280L)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	20 (Icosa-Core)
Threads	40
Base clock speed	2 GHz	of 4.7 GHz (Ryzen 9 7900X)
Boost clock speed	3.7 GHz	of 6.2 GHz (Core i9-14900KS)
Bus type	DMI 3.0
Bus rate	4 × 8 GT/s
Multiplier	20	of 42 (Core i7-7700K)
L1 cache	1.25 MB	of 80 KB (EPYC 9965)
L2 cache	20 MB	of 2 MB (Xeon 6980P)
L3 cache	27.5 MB	of 1152 MB (EPYC 9684X)
Chip lithography	14 nm	of 3 nm (Core Ultra 9 285K)
64 bit support	+
Windows 11 compatibility	+

Compatibility

Information on Xeon Gold 6138P compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	2 (Multiprocessor)	of 8 (Xeon Platinum 8454H)
Socket	FCLGA3647
Power consumption (TDP)	195 Watt	of 500 Watt (Xeon 6960P)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon Gold 6138P. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512
AES-NI	+
AVX	+
vPro	+
Enhanced SpeedStep (EIST)	+
Speed Shift	+
Turbo Boost Technology	2.0
Hyper-Threading Technology	+
TSX	+
Turbo Boost Max 3.0	-

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon Gold 6138P's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4-2666
Maximum memory size	768 GB	of 6 TiB (EPYC 9654)
Max memory channels	6	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	128.001 GB/s	of 460.8 GB/s (EPYC 9654)
ECC memory support	+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (EPYC 9655P)
PCI Express lanes	48	of 128 (EPYC 9655P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon Gold 6138P. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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