AMD Athlon X4 840: specs and benchmarks

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AMD Athlon X4 840
AMD Athlon X4 840
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Year of release 2014
Performance 3.27

Summary

AMD started AMD Athlon X4 840 sales on August 2014. This is Kaveri architecture desktop processor primarily aimed at office systems. It has 4 cores and 4 threads, and is based on 28 nm manufacturing technology, with a max turbo frequency of 3800 MHz and an unlocked multiplier.

Compatibility-wise, this is Socket FM2+ processor with a TDP of 65 watt and a maximum temperature of 72 °C. It supports DDR3 memory.

It provides poor benchmark performance at

3.27%

of a leader's which is AMD EPYC 7H12.

General info

Athlon X4 840 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating1563
Value for money7.38
Market segmentDesktop processor
Series4x Athlon
Architecture codenameKaveri (2014−2015)
Release dateAugust 2014 (8 years ago)
Current price$32 of 18494 (Xeon Platinum 8280M)
Value for money

To get the index we compare the characteristics of the processors and their cost, taking into account the cost of other processors.

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Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores4 (Quad-Core)
Threads4
Base clock speed3.1 GHzof 4.7 (FX-9590)
Boost clock speed3.8 GHzof 5.8 (Core i9-13900K)
L1 cache256Kof 1536 (EPYC Embedded 3401)
L2 cache4 MBof 12288 (Core 2 Quad Q9550)
Chip lithography28 nmof 5 (Apple M1)
Die size245 mm2
Maximum case temperature (TCase)72 °Cof 105 (Core i7-5950HQ)
Number of transistors2,411 millionof 9900000 (Ryzen 9 7950X)
64 bit support+
Windows 11 compatibility-
Unlocked multiplier+

Compatibility

Information on Athlon X4 840 compatibility with other computer components and devices: 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 configuration1of 8 (Opteron 842)
SocketSocket FM2+
Thermal design power (TDP)65 wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Athlon X4 840. You'll probably need this information if you require some particular technology.

AES-NI+
FMA+
AVX+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V+

Memory specs

Types, maximum amount and channel number of RAM supported by Athlon X4 840's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR3of 5200 (Ryzen 5 7600X)

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3.0of 5 (Core i9-12900K)

Benchmark performance

Single-core and multi-core benchmark results of Athlon X4 840. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Overall 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 3.27
  • Passmark
  • GeekBench 5 Single-Core
  • GeekBench 5 Multi-Core

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.

Benchmark coverage: 69%

Athlon X4 840 3292

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 38%

Athlon X4 840 488

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 38%

Athlon X4 840 1454

Game benchmarks

Relative perfomance

Overall Athlon X4 840 performance compared to nearest competitors among desktop CPUs.


Intel equivalent

We believe that the nearest equivalent to Athlon X4 840 from Intel is Core i3-4130, which is nearly equal in speed and higher by 4 positions in our rating.

Intel Core i3-4130 Core i3 4130
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Here are some closest Intel rivals to Athlon X4 840:

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Intel Core i3-4130 Core i3 4130
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AMD A8-9600 A8 9600
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AMD PRO A8-9600 PRO A8 9600
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AMD FX-4150 FX 4150
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AMD A10-7860K A10 7860K
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AMD FX-4350 FX 4350
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Recommended graphics cards

These graphics cards are most commonly used with Athlon X4 840 according to our statistics.

User rating

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


4 261 rating

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Questions and comments

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