Athlon II X4 641 vs Phenom II X2 555 BE

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Primary details

Comparing Phenom II X2 555 BE and Athlon II X4 641 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated2180
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiencyno data1.38
Architecture codenameCallisto (2009−2010)Llano (2011−2012)
Release date25 January 2010 (14 years ago)6 February 2012 (12 years ago)

Detailed specifications

Phenom II X2 555 BE and Athlon II X4 641 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)4 (Quad-Core)
Threads24
Base clock speed3.2 GHz2.8 GHz
Boost clock speed3.2 GHz2.8 GHz
L1 cache128 KB (per core)128 KB (per core)
L2 cache512 KB (per core)1 MB (per core)
L3 cache6 MB (shared)0 KB
Chip lithography45 nm32 nm
Die size258 mm2228 mm2
Number of transistors758 million1,178 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Phenom II X2 555 BE and Athlon II X4 641 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 configuration11
SocketAM3FM1
Power consumption (TDP)80 Watt100 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X2 555 BE and Athlon II X4 641 are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X2 555 BE and Athlon II X4 641. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

Peripherals

Specifications and connection of peripherals supported by Phenom II X2 555 BE and Athlon II X4 641.

PCIe version2.0no data

Pros & cons summary


Recency 25 January 2010 6 February 2012
Physical cores 2 4
Threads 2 4
Chip lithography 45 nm 32 nm
Power consumption (TDP) 80 Watt 100 Watt

Phenom II X2 555 BE has 25% lower power consumption.

Athlon II X4 641, on the other hand, has an age advantage of 2 years, 100% more physical cores and 100% more threads, and a 40.6% more advanced lithography process.

We couldn't decide between Phenom II X2 555 BE and Athlon II X4 641. We've got no test results to judge.


Should you still have questions on choice between Phenom II X2 555 BE and Athlon II X4 641, ask them in Comments section, and we shall answer.

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AMD Phenom II X2 555 BE
Phenom II X2 555 BE
AMD Athlon II X4 641
Athlon II X4 641

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Community ratings

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3.8 152 votes

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3.7 147 votes

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Questions & comments

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