Athlon II X4 645 vs Ryzen 5 2500U

Primary details

Comparing Ryzen 5 2500U and Athlon II X4 645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1389	2152
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	3.30
Market segment	Laptop	Desktop processor
Series	AMD Ryzen 5	no data
Power efficiency	26.01	1.48
Architecture codename	Raven Ridge (2017−2018)	Propus (2009−2011)
Release date	26 October 2017 (7 years ago)	21 September 2010 (14 years ago)
Launch price (MSRP)	no data	$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 5 2500U and Athlon II X4 645 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	4 (Quad-Core)	4 (Quad-Core)
Threads	8	4
Base clock speed	2 GHz	3.1 GHz
Boost clock speed	2 GHz	3.1 GHz
Multiplier	20	no data
L1 cache	384 KB	128 KB (per core)
L2 cache	2 MB	512 KB (per core)
L3 cache	4 MB (shared)	0 KB
Chip lithography	14 nm	45 nm
Die size	209.78 mm2	169 mm2
Number of transistors	4950 Million	300 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Ryzen 5 2500U and Athlon II X4 645 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	AM3
Power consumption (TDP)	15 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 5 2500U and Athlon II X4 645. 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 Ryzen 5 2500U and Athlon II X4 645 are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 5 2500U and Athlon II X4 645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-2400	DDR3
Maximum memory size	32 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 8 (Ryzen 2000/3000)

no data

Peripherals

Specifications and connection of peripherals supported by Ryzen 5 2500U and Athlon II X4 645.

PCIe version	3.0	2.0
PCI Express lanes	12	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	4.20	1.51
Recency	26 October 2017	21 September 2010
Threads	8	4
Chip lithography	14 nm	45 nm
Power consumption (TDP)	15 Watt	95 Watt

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Should you still have questions on choice between Ryzen 5 2500U and Athlon II X4 645, ask them in Comments section, and we shall answer.

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