Phenom X4 9550 vs Athlon II X4 620e

Primary details

Comparing Athlon II X4 620e and Phenom X4 9550 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1898	2325
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.25	1.03
Market segment	Desktop processor	Desktop processor
Architecture codename	Propus (2009−2011)	Agena (2007−2008)
Release date	3 May 2011 (13 years ago)	March 2008 (16 years ago)
Current price	$149	$76

Cost-effectiveness evaluation

Performance per price, higher is better.

Phenom X4 9550 has 312% better value for money than Athlon II X4 620e.

Detailed specifications

Athlon II X4 620e and Phenom X4 9550 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	4	4
Base clock speed	2.6 GHz	no data
Boost clock speed	2.6 GHz	2.2 GHz
L1 cache	128 KB (per core)	128 KB (per core)
L2 cache	512 KB (per core)	512 KB (per core)
L3 cache	0 KB	2 MB (shared)
Chip lithography	45 nm	65 nm
Die size	169 mm2	285 mm2
Number of transistors	300 million	450 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	No	No

Compatibility

Information on Athlon II X4 620e and Phenom X4 9550 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	AM2+
Power consumption (TDP)	45 Watt	95 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 620e and Phenom X4 9550 are enumerated here.

AMD-V

no data

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Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 620e and Phenom X4 9550. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

no data

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 620e and Phenom X4 9550.

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.

Athlon II X4 620e outperforms Phenom X4 9550 by 76% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	1.88	1.07
Chip lithography	45 nm	65 nm
Power consumption (TDP)	45 Watt	95 Watt

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Should you still have questions on choice between Athlon II X4 620e and Phenom X4 9550, ask them in Comments section, and we shall answer.

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