A4-3420 vs A8-3820

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Aggregate performance score

A8-3820
2011
4 cores / 4 threads, 65 Watt
1.37
+108%
A4-3420
2011
2 cores / 2 threads, 65 Watt
0.66

A8-3820 outperforms A4-3420 by a whopping 108% based on our aggregate benchmark results.

Primary details

Comparing A8-3820 and A4-3420 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22402755
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorDesktop processor
Power efficiency1.990.96
Architecture codenameLlano (2011−2012)Llano (2011−2012)
Release date20 December 2011 (13 years ago)20 December 2011 (13 years ago)

Detailed specifications

A8-3820 and A4-3420 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)2 (Dual-core)
Threads42
Base clock speed2.5 GHz2.8 GHz
Boost clock speed2.8 GHz2.8 GHz
L1 cache128 KB (per core)128 KB (per core)
L2 cache1 MB (per core)512 KB (per core)
L3 cache0 KB0 KB
Chip lithography32 nm32 nm
Die size228 mm2228 mm2
Number of transistors1,178 million1,178 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on A8-3820 and A4-3420 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
SocketFM1FM1
Power consumption (TDP)65 Watt65 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by A8-3820 and A4-3420 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-3820 and A4-3420. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 6550DRadeon HD 6410D

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.

A8-3820 1.37
+108%
A4-3420 0.66

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.

A8-3820 2180
+107%
A4-3420 1054

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.

A8-3820 304
+1.7%
A4-3420 299

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.

A8-3820 929
+75%
A4-3420 531

Gaming performance

Pros & cons summary


Performance score 1.37 0.66
Physical cores 4 2
Threads 4 2

A8-3820 has a 107.6% higher aggregate performance score, and 100% more physical cores and 100% more threads.

The A8-3820 is our recommended choice as it beats the A4-3420 in performance tests.


Should you still have questions on choice between A8-3820 and A4-3420, ask them in Comments section, and we shall answer.

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AMD A8-3820
A8-3820
AMD A4-3420
A4-3420

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Community ratings

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


3.5 48 votes

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3 26 votes

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Questions & comments

Here you can ask a question about A8-3820 or A4-3420, agree or disagree with our judgements, or report an error or mismatch.