Ryzen 9 7940HX vs EPYC 9354

Primary details

Comparing EPYC 9354 and Ryzen 9 7940HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	55	113
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	9.64	no data
Market segment	Server	Laptop
Series	AMD EPYC	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	14.44	58.35
Architecture codename	Genoa (2022−2023)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	10 November 2022 (2 years ago)	17 January 2024 (less than a year ago)
Launch price (MSRP)	$3,420	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 9354 and Ryzen 9 7940HX 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	32 (Dotriaconta-Core)	16 (Hexadeca-Core)
Threads	64	32
Base clock speed	3.25 GHz	2.4 GHz
Boost clock speed	3.8 GHz	5.2 GHz
Multiplier	32.5	no data
L1 cache	64K (per core)	1 MB
L2 cache	1 MB (per core)	16 MB
L3 cache	256 MB (shared)	64 MB
Chip lithography	5 nm, 6 nm	5 nm
Die size	8x 72 mm2	no data
Maximum core temperature	no data	100 °C
Number of transistors	52,560 million	9900 Million
64 bit support	+	+

Compatibility

Information on EPYC 9354 and Ryzen 9 7940HX 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	no data
Socket	SP5	FL1
Power consumption (TDP)	280 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 9354 and Ryzen 9 7940HX. 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 9354 and Ryzen 9 7940HX are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 9354 and Ryzen 9 7940HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5-4800	DDR5
Maximum memory size	6 TiB	no data
Maximum memory bandwidth	460.8 GB/s	no data

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 9354 and Ryzen 9 7940HX.

PCIe version	5.0	no data
PCI Express lanes	128	no data

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	42.71	33.91
Recency	10 November 2022	17 January 2024
Physical cores	32	16
Threads	64	32
Power consumption (TDP)	280 Watt	55 Watt

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Should you still have questions on choice between EPYC 9354 and Ryzen 9 7940HX, ask them in Comments section, and we shall answer.

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