Athlon II X4 651K vs Athlon II X4 740

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Primary details

Comparing Athlon II X4 740 and Athlon II X4 651K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2066not rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
SeriesAthlonno data
Architecture codenamePiledriverLlano (2011−2012)
Release date1 October 2012 (12 years ago)14 November 2011 (13 years ago)
Launch price (MSRP)$71no data

Detailed specifications

Athlon II X4 740 and Athlon II X4 651K 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 speed3.2 GHz3 GHz
Boost clock speed3.7 GHz3 GHz
L1 cache192 KB128 KB (per core)
L2 cache4 MB1 MB (per core)
L3 cacheno data0 KB
Chip lithography32 nm32 nm
Die sizeno data228 mm2
Number of transistorsno data1,178 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Athlon II X4 740 and Athlon II X4 651K 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
SocketSocket FM2FM1
Power consumption (TDP)65 watt100 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X4 740 and Athlon II X4 651K are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 740 and Athlon II X4 651K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3

Pros & cons summary


Power consumption (TDP) 65 Watt 100 Watt

Athlon II X4 740 has 53.8% lower power consumption.

We couldn't decide between Athlon II X4 740 and Athlon II X4 651K. We've got no test results to judge.


Should you still have questions on choice between Athlon II X4 740 and Athlon II X4 651K, ask them in Comments section, and we shall answer.

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AMD Athlon II X4 740
Athlon II X4 740
AMD Athlon II X4 651K
Athlon II X4 651K

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Community ratings

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4 101 vote

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3.6 32 votes

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Questions & comments

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