Atom E3845 vs Athlon II X4 640

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Aggregate performance score

Athlon II X4 640
2010
4 cores / 4 threads, 95 Watt
1.41
+110%
Atom E3845
2013
4 cores / 4 threads, 10 Watt
0.67

Athlon II X4 640 outperforms Atom E3845 by a whopping 110% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X4 640 and Atom E3845 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22142747
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.92no data
Market segmentDesktop processorLaptop
Seriesno dataAtom
Power efficiency1.406.34
Architecture codenamePropus (2009−2011)Bay Trail-I (2013)
Release date11 May 2010 (14 years ago)8 October 2013 (11 years ago)
Launch price (MSRP)$80no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon II X4 640 and Atom E3845 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 GHzno data
Boost clock speed3 GHz1.91 GHz
L1 cache128 KB (per core)64 KB (per core)
L2 cache512 KB (per core)512 KB (per core)
L3 cache0 KB0 KB
Chip lithography45 nm22 nm
Die size169 mm2no data
Number of transistors300 millionno data
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Athlon II X4 640 and Atom E3845 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
SocketAM3Intel BGA1170
Power consumption (TDP)95 Watt10 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X4 640 and Atom E3845. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)no data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X4 640 and Atom E3845. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics

Peripherals

Specifications and connection of peripherals supported by Athlon II X4 640 and Atom E3845.

PCIe version2.0no data

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Athlon II X4 640 1.41
+110%
Atom E3845 0.67

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Athlon II X4 640 2245
+111%
Atom E3845 1065

Gaming performance

Pros & cons summary


Performance score 1.41 0.67
Recency 11 May 2010 8 October 2013
Chip lithography 45 nm 22 nm
Power consumption (TDP) 95 Watt 10 Watt

Athlon II X4 640 has a 110.4% higher aggregate performance score.

Atom E3845, on the other hand, has an age advantage of 3 years, a 104.5% more advanced lithography process, and 850% lower power consumption.

The Athlon II X4 640 is our recommended choice as it beats the Atom E3845 in performance tests.

Note that Athlon II X4 640 is a desktop processor while Atom E3845 is a notebook one.


Should you still have questions on choice between Athlon II X4 640 and Atom E3845, ask them in Comments section, and we shall answer.

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AMD Athlon II X4 640
Athlon II X4 640
Intel Atom E3845
Atom E3845

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.7 1388 votes

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Questions & comments

Here you can ask a question about Athlon II X4 640 or Atom E3845, agree or disagree with our judgements, or report an error or mismatch.