EPYC 9655P vs Athlon 300U

Primary details

Comparing Athlon 300U and EPYC 9655P processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1756	1
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	2.42
Market segment	Laptop	Server
Series	AMD Athlon	no data
Power efficiency	15.36	23.22
Architecture codename	Raven Ridge 2 (2019)	Turin (2024)
Release date	6 January 2019 (5 years ago)	10 October 2024 (less than a year ago)
Launch price (MSRP)	no data	$10,811

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon 300U and EPYC 9655P 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	4	192
Base clock speed	2.4 GHz	2.6 GHz
Boost clock speed	3.3 GHz	4.5 GHz
Bus type	PCIe 3.0	no data
Multiplier	24	no data
L1 cache	192 KB	80 KB (per core)
L2 cache	1 MB	1 MB (per core)
L3 cache	4 MB (shared)	384 MB (shared)
Chip lithography	14 nm	4 nm
Die size	209.78 mm2	12x 70.6 mm2
Number of transistors	4940 Million	99,780 million
64 bit support	+	+
Windows 11 compatibility	+	no data

Compatibility

Information on Athlon 300U and EPYC 9655P 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	FP5	SP5
Power consumption (TDP)	15 Watt	400 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon 300U and EPYC 9655P. You'll probably need this information if you require some particular technology.

Instruction set extensions	XFR, FMA3, SSE 4.2, AVX2, SMT	no data
AES-NI	+	+
AVX	+	+
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 300U and EPYC 9655P are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 300U and EPYC 9655P. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4 Dual-channel	DDR5
Maximum memory size	64 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	38.397 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon RX Vega 3

N/A

Peripherals

Specifications and connection of peripherals supported by Athlon 300U and EPYC 9655P.

PCIe version	3.0	5.0
PCI Express lanes	12	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	2.48	100.00
Recency	6 January 2019	10 October 2024
Physical cores	2	96
Threads	4	192
Chip lithography	14 nm	4 nm
Power consumption (TDP)	15 Watt	400 Watt

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Should you still have questions on choice between Athlon 300U and EPYC 9655P, ask them in Comments section, and we shall answer.

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