Xeon Gold 6438Y vs Gold 6338

Primary details

Comparing Xeon Gold 6338 and Xeon Gold 6438Y processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	215	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	10.73	no data
Market segment	Server	Server
Release date	1 April 2021 (3 years ago)	1 January 2023 (1 year ago)
Current price	$3418	$3648

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Xeon Gold 6338 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	32 (Dotriaconta-Core)	32 (Dotriaconta-Core)
Threads	64	64
Base clock speed	2 GHz	2 GHz
Boost clock speed	3.2 GHz	4 GHz
L3 cache	48 MB	60 MB
Chip lithography	10 nm	Intel 7 nm
Maximum core temperature	81 °C	76 °C
64 bit support	-	-
Windows 11 compatibility	+	no data
Unlocked multiplier	No	No

Compatibility

Information on Xeon Gold 6338 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.

Socket	FCLGA4189	FCLGA4677
Power consumption (TDP)	205 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6338 and Xeon Gold 6438Y. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512	Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	+	+
Speed Shift	+	+
Turbo Boost Technology	2.0	2.0
Hyper-Threading Technology	+	+
TSX	+	+
Status	Launched	Launched

Security technologies

Xeon Gold 6338 and Xeon Gold 6438Y technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Gold 6338 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 6338 and Xeon Gold 6438Y. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR5-4800, DDR5-4400
Maximum memory size	6 TB	4 TB
Max memory channels	8	8
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 6338 and Xeon Gold 6438Y.

PCIe version	4.0	5
PCI Express lanes	64	80

Pros & cons summary

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Recency

1 April 2021

1 January 2023

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