EPYC 7551 vs Xeon Gold 6138

General info

Comparing Xeon Gold 6138 and EPYC 7551 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	420	442
Place by popularity	not in top-100	not in top-100
Value for money	35.41	20.72
Market segment	Server	Server
Series	Intel Xeon Gold	AMD EPYC
Architecture codename	Skylake (server) (2017−2019)	Naples (2017−2018)
Release date	25 April 2017 (6 years old)	29 June 2017 (6 years old)
Launch price (MSRP)	$2,612	$3,400
Current price	$258 (0.1x MSRP)	$251 (0.1x MSRP)

Value for money

Performance per price, higher is better.

Xeon Gold 6138 has 71% better value for money than EPYC 7551.

Technical specs

Xeon Gold 6138 and EPYC 7551 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	3 GHz
Bus support	4 × 8 GT/s	no data
L1 cache	1.25 MB	96K (per core)
L2 cache	20 MB	512K (per core)
L3 cache	27.5 MB	64 MB (shared)
Chip lithography	14 nm	14 nm
Die size	no data	192 mm2
Maximum core temperature	86 °C	no data
Number of transistors	no data	4,800 million
64 bit support	+	+
Windows 11 compatibility	+	-
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon Gold 6138 and EPYC 7551 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)	2 (Multiprocessor)
Socket	FCLGA3647	TR4
Power consumption (TDP)	125 Watt	180 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon Gold 6138 and EPYC 7551. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® AVX-512	no data
AES-NI	+	+
AVX	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
TSX	+	no data
Turbo Boost Max 3.0	-	no data
Status	Launched	no data

Security technologies

Xeon Gold 6138 and EPYC 7551 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon Gold 6138 and EPYC 7551 are enumerated here.

AMD-V	no data	+
VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon Gold 6138 and EPYC 7551. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR4 Eight-channel
Maximum memory size	768 GB	2 TiB
Max memory channels	6	8
Maximum memory bandwidth	128.001 GB/s	170.671 GB/s
ECC memory support	+	+

Peripherals

Specifications and connection of peripherals supported by Xeon Gold 6138 and EPYC 7551.

PCIe version	3.0	3.0
PCI Express lanes	48	128

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Xeon Gold 6138 outperforms EPYC 7551 by 2% based on our aggregated benchmark results.

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Advantages and disadvantages

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Performance score	14.99	14.67
Recency	25 April 2017	29 June 2017
Physical cores	20	32
Threads	40	64
Cost	$2612	$3400
Power consumption (TDP)	125 Watt	180 Watt

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Should you still have questions on choice between Xeon Gold 6138 and EPYC 7551, ask them in Comments section, and we shall answer.

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