AMD Phenom II X3 P840 vs Phenom II X3 P820

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Combined performance score

Phenom II X3 P820
0.68

Phenom II X3 P840 outperforms Phenom II X3 P820 by 25% in our combined benchmark results.

General info

Comparing Phenom II X3 P820 and Phenom II X3 P840 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking25782423
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Series3x AMD Phenom II3x AMD Phenom II
Architecture codenameChamplain (2010−2011)Champlain (2010−2011)
Release date12 May 2010 (13 years old)4 October 2010 (13 years old)

Technical specs

Phenom II X3 P820 and Phenom II X3 P840 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 cores3 (Tri-Core)3 (Tri-Core)
Threads33
Boost clock speed1.8 GHz1.9 GHz
Bus support3600 MHz3600 MHz
L1 cache384 KB384 KB
L2 cache1.5 MB1.5 MB
Chip lithography45 nm45 nm
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo

Compatibility

Information on Phenom II X3 P820 and Phenom II X3 P840 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.

SocketS1S1
Power consumption (TDP)25 Watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X3 P820 and Phenom II X3 P840. You'll probably need this information if you require some particular technology.

Instruction set extensionsintegrated DDR3 Memory Controller, Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a)integrated DDR3 Memory Controller, Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a)
VirusProtect++

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X3 P820 and Phenom II X3 P840 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Phenom II X3 P840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

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 X3 P820 0.68
Phenom II X3 P840 0.85
+25%

Phenom II X3 P840 outperforms Phenom II X3 P820 by 25% in our combined benchmark results.


Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Benchmark coverage: 19%

Phenom II X3 P820 4169
Phenom II X3 P840 4425
+6.1%

Phenom II X3 P840 outperforms Phenom II X3 P820 by 6% in Cinebench 10 32-bit multi-core.

Gaming performance

Advantages and disadvantages


Performance score 0.68 0.85
Recency 12 May 2010 4 October 2010

The Phenom II X3 P840 is our recommended choice as it beats the Phenom II X3 P820 in performance tests.


Should you still have questions on choice between Phenom II X3 P820 and Phenom II X3 P840, 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 X3 P820
Phenom II X3 P820
AMD Phenom II X3 P840
Phenom II X3 P840

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

User ratings: view and submit

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


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4.4 21 vote

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Questions and comments

Here you can ask a question about Phenom II X3 P820 or Phenom II X3 P840, agree or disagree with our judgements, or report an error or mismatch.