Athlon II X3 405e vs Athlon X4 840

VS

Aggregate performance score

Athlon X4 840
2014
4 cores / 4 threads, 65 Watt
2.09
+149%
Athlon II X3 405e
2009
3 cores / 3 threads, 45 Watt
0.84

Athlon X4 840 outperforms Athlon II X3 405e by a whopping 149% based on our aggregate benchmark results.

Primary details

Comparing Athlon X4 840 and Athlon II X3 405e processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking18902587
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data4.58
Market segmentDesktop processorDesktop processor
Series4x Athlonno data
Power efficiency3.041.77
Architecture codenameKaveri (2014−2015)Rana (2009−2011)
Release dateAugust 2014 (10 years ago)20 October 2009 (15 years ago)
Launch price (MSRP)no data$80

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon X4 840 and Athlon II X3 405e 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)3 (Tri-Core)
Threads43
Base clock speed3.1 GHz2.3 GHz
Boost clock speed3.8 GHz2.3 GHz
L1 cache256K128 KB (per core)
L2 cache4 MB512 KB (per core)
L3 cacheno data0 KB
Chip lithography28 nm45 nm
Die size245 mm2169 mm2
Maximum case temperature (TCase)72 °Cno data
Number of transistors2,411 million300 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-

Compatibility

Information on Athlon X4 840 and Athlon II X3 405e 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 FM2+AM3
Power consumption (TDP)65 watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon X4 840 and Athlon II X3 405e. You'll probably need this information if you require some particular technology.

AES-NI+-
FMA+-
AVX+-

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon X4 840 and Athlon II X3 405e are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon X4 840 and Athlon II X3 405e. 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 dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Athlon X4 840 and Athlon II X3 405e.

PCIe version3.02.0
PCI Express lanes16no 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 X4 840 2.09
+149%
Athlon II X3 405e 0.84

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 X4 840 3318
+149%
Athlon II X3 405e 1331

Gaming performance

Pros & cons summary


Performance score 2.09 0.84
Recency on August 2014 20 October 2009
Physical cores 4 3
Threads 4 3
Chip lithography 28 nm 45 nm
Power consumption (TDP) 65 Watt 45 Watt

Athlon X4 840 has a 148.8% higher aggregate performance score, an age advantage of 4 years, 33.3% more physical cores and 33.3% more threads, and a 60.7% more advanced lithography process.

Athlon II X3 405e, on the other hand, has 44.4% lower power consumption.

The Athlon X4 840 is our recommended choice as it beats the Athlon II X3 405e in performance tests.


Should you still have questions on choice between Athlon X4 840 and Athlon II X3 405e, ask them in Comments section, and we shall answer.

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AMD Athlon X4 840
Athlon X4 840
AMD Athlon II X3 405e
Athlon II X3 405e

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Community ratings

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