Phenom II X4 945 (95W) vs Athlon 64 FX-55

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Primary details

Comparing Athlon 64 FX-55 and Phenom II X4 945 (95W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking3158not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency0.23no data
Architecture codenameClawhammer (2001−2005)Deneb (2009−2011)
Release date10 October 2004 (20 years ago)22 July 2009 (15 years ago)
Launch price (MSRP)$180no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon 64 FX-55 and Phenom II X4 945 (95W) 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 cores1 (Single-Core)4 (Quad-Core)
Threads14
Base clock speed2.6 GHz3 GHz
Boost clock speed2.6 GHz3 GHz
L1 cache128 KB128 KB (per core)
L2 cache1 MB512 KB (per core)
L3 cache0 KB6 MB (shared)
Chip lithography130 nm45 nm
Die size193 mm2258 mm2
Maximum case temperature (TCase)63 °Cno data
Number of transistors105 million758 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Athlon 64 FX-55 and Phenom II X4 945 (95W) 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
Socket939AM3
Power consumption (TDP)104 Watt95 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 64 FX-55 and Phenom II X4 945 (95W) are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-55 and Phenom II X4 945 (95W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1 Depends on motherboardDDR3

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 Athlon 64 FX-55 and Phenom II X4 945 (95W).

PCIe versionno data2.0

Pros & cons summary


Recency 10 October 2004 22 July 2009
Physical cores 1 4
Threads 1 4
Chip lithography 130 nm 45 nm
Power consumption (TDP) 104 Watt 95 Watt

Phenom II X4 945 (95W) has an age advantage of 4 years, 300% more physical cores and 300% more threads, a 188.9% more advanced lithography process, and 9.5% lower power consumption.

We couldn't decide between Athlon 64 FX-55 and Phenom II X4 945 (95W). We've got no test results to judge.


Should you still have questions on choice between Athlon 64 FX-55 and Phenom II X4 945 (95W), ask them in Comments section, and we shall answer.

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AMD Athlon 64 FX-55
Athlon 64 FX-55
AMD Phenom II X4 945 (95W)
Phenom II X4 945 (95W)

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Community ratings

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