Athlon 64 FX-55 vs Phenom II X4 955 BE

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Primary details

Comparing Phenom II X4 955 BE and Athlon 64 FX-55 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated3163
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiencyno data0.23
Architecture codenameDeneb (2009−2011)Clawhammer (2001−2005)
Release date23 April 2009 (15 years ago)10 October 2004 (20 years ago)
Launch price (MSRP)no data$180

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Phenom II X4 955 BE and Athlon 64 FX-55 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 cores4 (Quad-Core)1 (Single-Core)
Threads41
Base clock speed3.2 GHz2.6 GHz
Boost clock speed3.2 GHz2.6 GHz
L1 cache128 KB (per core)128 KB
L2 cache512 KB (per core)1 MB
L3 cache6 MB (shared)0 KB
Chip lithography45 nm130 nm
Die size258 mm2193 mm2
Maximum case temperature (TCase)no data63 °C
Number of transistors758 million105 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier++

Compatibility

Information on Phenom II X4 955 BE and Athlon 64 FX-55 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
SocketAM3939
Power consumption (TDP)125 Watt104 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X4 955 BE and Athlon 64 FX-55 are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 955 BE and Athlon 64 FX-55. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR1 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Phenom II X4 955 BE and Athlon 64 FX-55.

PCIe version2.0no data

Pros & cons summary


Recency 23 April 2009 10 October 2004
Physical cores 4 1
Threads 4 1
Chip lithography 45 nm 130 nm
Power consumption (TDP) 125 Watt 104 Watt

Phenom II X4 955 BE has an age advantage of 4 years, 300% more physical cores and 300% more threads, and a 188.9% more advanced lithography process.

Athlon 64 FX-55, on the other hand, has 20.2% lower power consumption.

We couldn't decide between Phenom II X4 955 BE and Athlon 64 FX-55. We've got no test results to judge.


Should you still have questions on choice between Phenom II X4 955 BE and Athlon 64 FX-55, ask them in Comments section, and we shall answer.

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AMD Phenom II X4 955 BE
Phenom II X4 955 BE
AMD Athlon 64 FX-55
Athlon 64 FX-55

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Community ratings

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3.8 289 votes

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3.7 3 votes

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Questions & comments

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