EPYC 9654 vs Athlon II M340

Primary details

Comparing Athlon II M340 and EPYC 9654 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	2734	4
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	10.12
Market segment	Laptop	Server
Series	AMD Athlon II	AMD EPYC
Architecture codename	Caspian (2009)	Genoa
Release date	10 September 2009 (14 years ago)	10 November 2022 (1 year ago)
Launch price (MSRP)	no data	$11,805
Current price	$155	$4544 (0.4x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon II M340 and EPYC 9654 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	2 (Dual-core)	96
Threads	2	192
Base clock speed	no data	2.4 GHz
Boost clock speed	2.2 GHz	3.7 GHz
Bus support	3200 MHz	no data
L1 cache	128 KB	64K (per core)
L2 cache	1 MB	1 MB (per core)
L3 cache	no data	384 MB (shared)
Chip lithography	45 nm	5 nm, 6 nm
Die size	no data	12x 72 mm2
Number of transistors	no data	78,840 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	No	No

Compatibility

Information on Athlon II M340 and EPYC 9654 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	no data	2
Socket	Socket S1 (S1g3)	SP5
Power consumption (TDP)	35 Watt	360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II M340 and EPYC 9654. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization, DDR2 400 MHz Memory Controller	no data
AES-NI	no data	+
AVX	no data	+
PowerNow	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II M340 and EPYC 9654 are enumerated here.

AMD-V

no data

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II M340 and EPYC 9654. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR2	DDR5-4800
Maximum memory size	no data	6 TiB
Maximum memory bandwidth	no data	460.8 GB/s

Peripherals

Specifications and connection of peripherals supported by Athlon II M340 and EPYC 9654.

PCIe version	no data	5.0
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.

EPYC 9654 outperforms Athlon II M340 by 15088% based on our aggregated benchmark results.

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Pros & cons summary

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Performance score	0.52	78.98
Recency	10 September 2009	10 November 2022
Physical cores	2	96
Threads	2	192
Chip lithography	45 nm	5 nm
Power consumption (TDP)	35 Watt	360 Watt

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Should you still have questions on choice between Athlon II M340 and EPYC 9654, ask them in Comments section, and we shall answer.

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