Phenom II X4 P940 vs Athlon X4 845

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Primary details

Comparing Athlon X4 845 and Phenom II X4 P940 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1786not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno data4x AMD Phenom II
Power efficiency3.48no data
Architecture codenameCarrizo (2015−2018)Champlain (2010−2011)
Release date2 February 2016 (8 years ago)4 October 2010 (14 years ago)

Detailed specifications

Athlon X4 845 and Phenom II X4 P940 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)4 (Quad-Core)
Threads44
Base clock speed3.5 GHzno data
Boost clock speed3.8 GHz1.7 GHz
Bus rateno data3600 MHz
L1 cache320K512 KB
L2 cache2 MB2 MB
Chip lithography28 nm45 nm
Die size250 mm2no data
Maximum case temperature (TCase)74 °Cno data
Number of transistors3,100 millionno data
64 bit support++
Windows 11 compatibilityno data-
Unlocked multiplier+-

Compatibility

Information on Athlon X4 845 and Phenom II X4 P940 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 configuration1no data
SocketFM2+S1 (S1g4)
Power consumption (TDP)65 Watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X4 845 and Phenom II X4 P940. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataMMX, 3DNow, SSE (1,2,3,4A), AMD64, Enhanced Virus Protection, Virtualization, HyperTransport 3.0
AES-NI+-
FMA+-
AVX+-
VirusProtect-+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X4 845 and Phenom II X4 P940 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X4 845 and Phenom II X4 P940. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3-2133DDR3

Peripherals

Specifications and connection of peripherals supported by Athlon X4 845 and Phenom II X4 P940.

PCIe version3.0no data
PCI Express lanes8no data

Pros & cons summary


Recency 2 February 2016 4 October 2010
Chip lithography 28 nm 45 nm
Power consumption (TDP) 65 Watt 25 Watt

Athlon X4 845 has an age advantage of 5 years, and a 60.7% more advanced lithography process.

Phenom II X4 P940, on the other hand, has 160% lower power consumption.

We couldn't decide between Athlon X4 845 and Phenom II X4 P940. We've got no test results to judge.

Note that Athlon X4 845 is a desktop processor while Phenom II X4 P940 is a notebook one.


Should you still have questions on choice between Athlon X4 845 and Phenom II X4 P940, ask them in Comments section, and we shall answer.

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AMD Athlon X4 845
Athlon X4 845
AMD Phenom II X4 P940
Phenom II X4 P940

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Community ratings

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3.9 81 vote

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