EPYC 9555 vs Athlon II M340

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Primary details

Comparing Athlon II M340 and EPYC 9555 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2885not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopServer
SeriesAMD Athlon IIno data
Power efficiency1.38no data
Architecture codenameCaspian (2009)Turin (2024)
Release date10 September 2009 (15 years ago)10 October 2024 (less than a year ago)
Launch price (MSRP)no data$9,826

Detailed specifications

Athlon II M340 and EPYC 9555 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 cores2 (Dual-core)64 (Tetrahexaconta-Core)
Threads2128
Base clock speedno data3.2 GHz
Boost clock speed2.2 GHz4.4 GHz
Bus rate3200 MHzno data
L1 cache128 KB80 KB (per core)
L2 cache1 MB1 MB (per core)
L3 cacheno data256 MB (shared)
Chip lithography45 nm4 nm
Die sizeno data8x 70.6 mm2
Number of transistorsno data66,520 million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Athlon II M340 and EPYC 9555 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 configurationno data2
SocketSocket S1 (S1g3)SP5
Power consumption (TDP)35 Watt360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II M340 and EPYC 9555. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualizationno data
AES-NI-+
AVX-+
PowerNow+-
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II M340 and EPYC 9555 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II M340 and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR2DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataN/A

Peripherals

Specifications and connection of peripherals supported by Athlon II M340 and EPYC 9555.

PCIe versionno data5.0
PCI Express lanesno data128

Pros & cons summary


Recency 10 September 2009 10 October 2024
Physical cores 2 64
Threads 2 128
Chip lithography 45 nm 4 nm
Power consumption (TDP) 35 Watt 360 Watt

Athlon II M340 has 928.6% lower power consumption.

EPYC 9555, on the other hand, has an age advantage of 15 years, 3100% more physical cores and 6300% more threads, and a 1025% more advanced lithography process.

We couldn't decide between Athlon II M340 and EPYC 9555. We've got no test results to judge.

Be aware that Athlon II M340 is a notebook processor while EPYC 9555 is a server/workstation one.


Should you still have questions on choice between Athlon II M340 and EPYC 9555, ask them in Comments section, and we shall answer.

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AMD Athlon II M340
Athlon II M340
AMD EPYC 9555
EPYC 9555

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

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