EPYC 7643 vs Ryzen Embedded V1756B

Primary details

Comparing Ryzen Embedded V1756B and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1190	38
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	6.32
Market segment	Desktop processor	Server
Series	AMD Ryzen Embedded	AMD EPYC
Power efficiency	10.86	20.14
Architecture codename	Zen (2017−2020)	Milan (2021−2023)
Release date	21 February 2018 (6 years ago)	12 January 2021 (3 years ago)
Launch price (MSRP)	no data	$4,995

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen Embedded V1756B and EPYC 7643 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	4 (Quad-Core)	48 (Octatetraconta-Core)
Threads	8	96
Base clock speed	3.25 GHz	2.3 GHz
Boost clock speed	3.6 GHz	3.6 GHz
Multiplier	32.5	23
L1 cache	128K (per core)	3 MB
L2 cache	512K (per core)	24 MB
L3 cache	2 MB (shared)	256 MB (shared)
Chip lithography	14 nm	7 nm+
Die size	210 mm2	8x 81 mm2
Number of transistors	4,950 million	33,200 million
64 bit support	+	+
Windows 11 compatibility	-	+

Compatibility

Information on Ryzen Embedded V1756B and EPYC 7643 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	1 (Uniprocessor)	2
Socket	FP5	SP3
Power consumption (TDP)	45 Watt	225 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen Embedded V1756B and EPYC 7643. You'll probably need this information if you require some particular technology.

AES-NI	+	+
AVX	+	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen Embedded V1756B and EPYC 7643 are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen Embedded V1756B and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Dual-channel	DDR4-3200
Maximum memory size	32 GB	4 TiB
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	204.795 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon RX Vega 8 (Ryzen 2000/3000)

N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen Embedded V1756B and EPYC 7643.

PCIe version	no data	4.0
PCI Express lanes	no data	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.

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Pros & cons summary

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Performance score	5.36	49.69
Recency	21 February 2018	12 January 2021
Physical cores	4	48
Threads	8	96
Chip lithography	14 nm	7 nm
Power consumption (TDP)	45 Watt	225 Watt

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Should you still have questions on choice between Ryzen Embedded V1756B and EPYC 7643, ask them in Comments section, and we shall answer.

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