EPYC 7551: specs and benchmarks

Summary

AMD started EPYC 7551 sales 20 June 2017 at a recommended price of $3,400. This is a Naples architecture desktop processor primarily aimed at office systems. It has 32 cores and 64 threads, and is based on 14 nm manufacturing technology, with a max turbo frequency of 2000 MHz - 3000 MHz (1 core) 3000 MHz (2 cores) 3000 MHz (3 cores) 3000 MHz (4 cores) 3000 MHz (5 cores) 3000 MHz (6 cores) 3000 MHz (7 cores) 3000 MHz (8 cores) 3000 MHz (9 cores) 3000 MHz (10 cores) 3000 MHz (11 cores) 3000 MHz (12 cores) 2550 MHz (13 cores) 2550 MHz (14 cores) 2550 MHz (15 cores) 2550 MHz (16 cores) 2550 MHz (17 cores) 2550 MHz (18 cores) 2550 MHz (19 cores) 2550 MHz (20 cores) 2550 MHz (21 cores) 2550 MHz (22 cores) 2550 MHz (23 cores) 2550 MHz (24 cores) 2550 MHz (25 cores) 2550 MHz (26 cores) 2550 MHz (27 cores) 2550 MHz (28 cores) 2550 MHz (29 cores) 2550 MHz (30 cores) 2550 MHz (31 cores) 2550 MHz (32 cores) and an unlocked multiplier.

Compatibility-wise, this is AMD Socket TR4 processor with a TDP of 180 Watt. It supports DDR4 Eight-channel memory.

Primary details

EPYC 7551 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking	435
Place by popularity	not in top-100
Cost-effectiveness evaluation	1.25
Market segment	Server
Series	AMD EPYC
Architecture codename	Naples (2017−2018)
Release date	20 June 2017 (7 years ago)
Launch price (MSRP)	$3,400	of 17,906 (tray) (Xeon Platinum 8280L)

Cost-effectiveness evaluation

Performance per price, higher is better.

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	32 (Dotriaconta-Core)
Threads	64
Base clock speed	2 GHz	of 4.7 GHz (FX-9590)
Boost clock speed	2 GHz	of 50 MHz (i486DX-50)
Multiplier	20	of 42 (Core i7-7700K)
L1 cache	3 MB	of 7475.2 KB (Apple M2 Pro 10-Core)
L2 cache	16 MB	of 98304 KB (EPYC 9654)
L3 cache	64 MB (shared)	of 1179648 KB (EPYC 9684X)
Chip lithography	14 nm	of 0.18 µm (K6-2+/450ACZ)
Die size	213 mm2
Number of transistors	19200 Million	of 135,240 million (EPYC 9684X)
64 bit support	+
Windows 11 compatibility	-
Unlocked multiplier	+

Compatibility

Information on EPYC 7551 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 (Opteron 842)
Socket	TR4
Power consumption (TDP)	180 Watt	of 400 Watt (Xeon Platinum 9282)

Technologies and extensions

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

AES-NI	+
AVX	+

Virtualization technologies

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

AMD-V

+

Memory specs

Types, maximum amount and channel number of RAM supported by EPYC 7551's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4 Eight-channel
Maximum memory size	2 TiB	of 6 TiB (EPYC 9124)
Max memory channels	8	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	170.671 GB/s	of 460.8 GB/s (EPYC 9124)
ECC memory support	+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (Core i9-12900K)
PCI Express lanes	128

Benchmark performance

Single-core and multi-core benchmark results of EPYC 7551. Overall benchmark performance 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.

Closest competitors

EPYC 7551's performance relative to its closest rivals among server CPUs.

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