AMD A8-3820 vs Phenom II X4 820

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Combined performance score

Phenom II X4 820
1.36

A8-3820 outperforms Phenom II X4 820 by 4% in our combined benchmark results.

General info

Comparing Phenom II X4 820 and A8-3820 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking21052075
Place by popularitynot in top-100not in top-100
Value for money2.100.06
Market segmentDesktop processorDesktop processor
Architecture codenameDeneb (2009−2011)Llano (2011−2012)
Release dateSeptember 2009 (14 years old)20 December 2011 (12 years old)
Launch price (MSRP)$90no data
Current price$36 (0.4x MSRP)$316
Value for money

Performance per price, higher is better.

Phenom II X4 820 has 3400% better value for money than A8-3820.

Technical specs

Phenom II X4 820 and A8-3820 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 speedno data2.5 GHz
Boost clock speed2.8 GHz2.8 GHz
L1 cache128 KB (per core)128 KB (per core)
L2 cache512 KB (per core)1 MB (per core)
L3 cache4 MB (shared)0 KB
Chip lithography45 nm32 nm
Die size258 mm2228 mm2
Number of transistors758 million1,178 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Phenom II X4 820 and A8-3820 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
SocketAM3FM1
Power consumption (TDP)95 Watt65 Watt

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X4 820 and A8-3820 are enumerated here.

AMD-Vno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 820 and A8-3820. 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 dataAMD Radeon HD 6550D

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.

Phenom II X4 820 1.36
A8-3820 1.42
+4.4%

A8-3820 outperforms Phenom II X4 820 by 4% in our combined benchmark results.


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: 68%

Phenom II X4 820 2086
A8-3820 2174
+4.2%

A8-3820 outperforms Phenom II X4 820 by 4% in Passmark.

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: 42%

Phenom II X4 820 376
+26.2%
A8-3820 298

Phenom II X4 820 outperforms A8-3820 by 26% in GeekBench 5 Single-Core.

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: 42%

Phenom II X4 820 1282
+41.7%
A8-3820 905

Phenom II X4 820 outperforms A8-3820 by 42% in GeekBench 5 Multi-Core.

Gaming performance

Advantages and disadvantages


Performance score 1.36 1.42
Chip lithography 45 nm 32 nm
Power consumption (TDP) 95 Watt 65 Watt

We couldn't decide between Phenom II X4 820 and A8-3820. The differences in performance seem too small.


Should you still have questions on choice between Phenom II X4 820 and A8-3820, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Phenom II X4 820
Phenom II X4 820
AMD A8-3820
A8-3820

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User ratings: view and submit

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4.5 54 votes

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3.5 46 votes

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Questions and comments

Here you can ask a question about Phenom II X4 820 or A8-3820, agree or disagree with our judgements, or report an error or mismatch.