Xeon Gold 6438Y vs Gold 6138

Primary details

Comparing Xeon Gold 6138 and Xeon Gold 6438Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	451	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	4.55	no data
Market segment	Server	Server
Series	Intel Xeon Gold	no data
Power efficiency	11.57	no data
Architecture codename	Skylake (server) (2017−2018)	no data
Release date	25 April 2017 (7 years ago)	1 January 2023 (1 year ago)
Launch price (MSRP)	$2,612	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Gold 6138 and Xeon Gold 6438Y basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	20 (Icosa-Core)	32 (Dotriaconta-Core)
Threads	40	64
Base clock speed	2 GHz	2 GHz
Boost clock speed	3.7 GHz	4 GHz
Bus type	DMI 3.0	no data
Bus rate	4 × 8 GT/s	no data
Multiplier	20	no data
L1 cache	1.25 MB	no data
L2 cache	20 MB	no data
L3 cache	27.5 MB	60 MB
Chip lithography	14 nm	Intel 7 nm
Maximum core temperature	86 °C	76 °C
64 bit support	+	-
Windows 11 compatibility	+	no data

Compatibility

Information on Xeon Gold 6138 and Xeon Gold 6438Y compatibility with other computer components: 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	4 (Multiprocessor)	no data
Socket	FCLGA3647	FCLGA4677
Power consumption (TDP)	125 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6138 and Xeon Gold 6438Y. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
AVX	+	-
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Turbo Boost Max 3.0	-	no data
Deep Learning Boost	-	+

Security technologies

Xeon Gold 6138 and Xeon Gold 6438Y technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	+
EDB	+	+
SGX	no data	Yes with Intel® SPS
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Gold 6138 and Xeon Gold 6438Y are enumerated here.

VT-d	+	+
VT-x	+	+
EPT	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6138 and Xeon Gold 6438Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR5-4800, DDR5-4400
Maximum memory size	768 GB	4 TB
Max memory channels	6	8
Maximum memory bandwidth	128.001 GB/s	no data
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 6138 and Xeon Gold 6438Y.

PCIe version	3.0	5
PCI Express lanes	48	80

Pros & cons summary

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Recency	25 April 2017	1 January 2023
Physical cores	20	32
Threads	40	64
Power consumption (TDP)	125 Watt	205 Watt

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Should you still have questions on choice between Xeon Gold 6138 and Xeon Gold 6438Y, ask them in Comments section, and we shall answer.

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