AMD Athlon X4 840: specs and benchmarks

AMD Athlon X4 840


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 maximum frequency of 3800 MHz and a locked multiplier.

Compatibility-wise, this is Socket FM2+ processor with a TDP of 65 watt.

It provides poor benchmark performance at 3.68 percent of a leader's which is AMD Ryzen Threadripper PRO 3995WX.

General info

Of Athlon X4 840 processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
Value for money (0-100)
4x Athlon
Architecture codename
Release date
August 2014
Price now
of 15385 (Xeon W-2195)

Technical specs

Athlon X4 840's quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Athlon X4 840's performance, but to be more precise you have to review its test results.
Number of cores
Number of threads
Base frequency
3.1 GHz
of 4.7 (FX-9590)
Maximum frequency
3.8 GHz
L2 cache
4 MB
Manufacturing process technology
28 nm
of 5 (Apple M1)
64 bit support


Information on Athlon X4 840 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Socket FM2+
Power consumption (TDP)
65 watt

Benchmark performance

Non-gaming benchmarks performance of Athlon X4 840. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance




Game benchmarks

Let's see how good Athlon X4 840 is for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

Overall Athlon X4 840 performance compared to nearest competitors. All CPU types participate.

Intel equivalent

We believe that the nearest equivalent to Athlon X4 840 from Intel is Core i5-4570T, which is nearly equal in speed and lower by 1 position in our rating.

User rating

Here are CPU ratings given by our user. You can rate both processors yourself.

Advices and comments

Here you can ask a question about Athlon X4 840, agree or disagree with our judgements, or report an error or mismatch.
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