Xeon Gold 6438Y+ vs Gold 5420+

Primary details

Comparing Xeon Gold 5420+ and Xeon Gold 6438Y+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	87	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Server	Server
Architecture codename	Sapphire Rapids (2023)	Sapphire Rapids (2023)
Release date	10 January 2023 (1 year ago)	10 January 2023 (1 year ago)

Detailed specifications

Xeon Gold 5420+ 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	28 (Octacosa-Core)	32 (Dotriaconta-Core)
Threads	56	64
Base clock speed	2 GHz	2 GHz
Boost clock speed	4.1 GHz	4 GHz
L1 cache	80K (per core)	80K (per core)
L2 cache	2 MB (per core)	2 MB (per core)
L3 cache	52.5 MB	60 MB
Chip lithography	10 nm	10 nm
Maximum case temperature (TCase)	84 °C	85 °C
64 bit support	+	+
Windows 11 compatibility	+	+

Compatibility

Information on Xeon Gold 5420+ 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	2	2
Socket	4677	4677
Power consumption (TDP)	205 Watt	205 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 5420+ and Xeon Gold 6438Y+. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
vPro	+	+
Enhanced SpeedStep (EIST)	+	+
TSX	+	+

Security technologies

Xeon Gold 5420+ and Xeon Gold 6438Y+ technologies aimed at improving security, for example, by protecting against hacks.

TXT

+

+

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Gold 5420+ and Xeon Gold 6438Y+ are enumerated here.

VT-d	+	+
VT-x	+	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Gold 5420+ and Xeon Gold 6438Y+. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5-4400

DDR5-4800

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 5420+ and Xeon Gold 6438Y+.

PCIe version	5.0	5.0
PCI Express lanes	80	80

Pros & cons summary

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Physical cores	28	32
Threads	56	64

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Should you still have questions on choice between Xeon Gold 5420+ and Xeon Gold 6438Y+, ask them in Comments section, and we shall answer.

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