Athlon 64 X2 4400+ vs Athlon II X4 620

Primary details

Comparing Athlon II X4 620 and Athlon 64 X2 (Desktop) 4400+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2299	2980
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.43	no data
Market segment	Desktop processor	Desktop processor
Series	no data	2x Athlon 64 (Desktop)
Power efficiency	1.27	0.61
Architecture codename	Propus (2009−2011)	Windsor (2006−2007)
Release date	16 September 2009 (15 years ago)	no data
Launch price (MSRP)	$65	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon II X4 620 and Athlon 64 X2 (Desktop) 4400+ 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)	2 (Dual-core)
Threads	4	2
Base clock speed	2.6 GHz	no data
Boost clock speed	2.6 GHz	2.2 GHz
Bus rate	no data	1000 MHz
L1 cache	128 KB (per core)	256K
L2 cache	512 KB (per core)	512K
L3 cache	0 KB	0 KB
Chip lithography	45 nm	90 nm
Die size	169 mm2	220 mm2
Number of transistors	300 million	233 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon II X4 620 and Athlon 64 X2 (Desktop) 4400+ 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	1
Socket	AM3	939
Power consumption (TDP)	95 Watt	65 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 620 and Athlon 64 X2 (Desktop) 4400+. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 620 and Athlon 64 X2 (Desktop) 4400+.

PCIe version

2.0

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	1.27	0.42
Physical cores	4	2
Threads	4	2
Chip lithography	45 nm	90 nm
Power consumption (TDP)	95 Watt	65 Watt

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Should you still have questions on choice between Athlon II X4 620 and Athlon 64 X2 4400+, ask them in Comments section, and we shall answer.

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