Ryzen 9 7945HX vs EPYC Embedded 3451

Primary details

Comparing EPYC Embedded 3451 and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	108
Place by popularity	not in top-100	not in top-100
Market segment	Server	Laptop
Series	AMD EPYC Embedded	no data
Power efficiency	no data	59.24
Architecture codename	Zen (2017−2020)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	21 February 2018 (6 years ago)	4 January 2023 (1 year ago)
Launch price (MSRP)	$880	no data

Detailed specifications

EPYC Embedded 3451 and Ryzen 9 7945HX 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	16 (Hexadeca-Core)	16 (Hexadeca-Core)
Threads	32	32
Base clock speed	2.15 GHz	2.5 GHz
Boost clock speed	3 GHz	5.4 GHz
Multiplier	21.5	no data
L1 cache	96K (per core)	64K (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	32 MB (shared)	64 MB (shared)
Chip lithography	14 nm	CCD = 5 nm, I/O = 6 nm
Die size	2x 213 mm2	2x 71 mm2
Maximum core temperature	no data	100 °C
Number of transistors	4,800 million	13,140 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	-	+

Compatibility

Information on EPYC Embedded 3451 and Ryzen 9 7945HX 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)	1
Socket	AMD BGA SP4r2	FL1
Power consumption (TDP)	100 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC Embedded 3451 and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI	+	+
FMA	-	+
AVX	+	+
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC Embedded 3451 and Ryzen 9 7945HX are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC Embedded 3451 and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2666	DDR5
Maximum memory size	1 TiB	no data
Max memory channels	4	no data
Maximum memory bandwidth	85.33 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by EPYC Embedded 3451 and Ryzen 9 7945HX.

PCIe version	3.0	5.0
PCI Express lanes	64	28

Pros & cons summary

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Recency	21 February 2018	4 January 2023
Power consumption (TDP)	100 Watt	55 Watt

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Should you still have questions on choice between EPYC Embedded 3451 and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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