Core 2 Quad Q8400 vs A8-3820

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Aggregated performance score

A8-3820
2011
4 cores / 4 threads
1.42
+5.2%
Core 2 Quad Q8400
2009
4 cores / 4 threads
1.35

A8-3820 outperforms Core 2 Quad Q8400 by 5% based on our aggregated benchmark results.

General info

Comparing A8-3820 and Core 2 Quad Q8400 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking20852123
Place by popularitynot in top-100not in top-100
Value for money0.062.73
Market segmentDesktop processorDesktop processor
Architecture codenameLlano (2011−2012)Yorkfield (2007−2009)
Release date20 December 2011 (12 years old)April 2009 (15 years old)
Current price$316 $58

Value for money

Performance per price, higher is better.

Core 2 Quad Q8400 has 4450% better value for money than A8-3820.

Technical specs

A8-3820 and Core 2 Quad Q8400 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 speed2.5 GHz2.66 GHz
Boost clock speed2.8 GHz2.67 GHz
L1 cache128 KB (per core)64K (per core)
L2 cache1 MB (per core)4 MB (shared)
L3 cache0 KB0 KB
Chip lithography32 nm45 nm
Die size228 mm22x 81 mm2
Maximum core temperatureno data71 °C
Maximum case temperature (TCase)no data71 °C
Number of transistors1,178 million456 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplierNoNo
VID voltage rangeno data0.85V-1.3625V

Compatibility

Information on A8-3820 and Core 2 Quad Q8400 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
SocketFM1FCLGA775,LGA775
Power consumption (TDP)65 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-3820 and Core 2 Quad Q8400. You'll probably need this information if you require some particular technology.

AES-NIno data-
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoringno data+
Demand Based Switchingno data-
FSB parityno data-
Statusno dataDiscontinued

Security technologies

A8-3820 and Core 2 Quad Q8400 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-3820 and Core 2 Quad Q8400 are enumerated here.

AMD-V+no data
VT-xno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-3820 and Core 2 Quad Q8400. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 6550Dno data

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 1.42
+5.2%
Core 2 Quad Q8400 1.35

A8-3820 outperforms Core 2 Quad Q8400 by 5% based on our aggregated 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%

A8-3820 2174
+4.9%
Core 2 Quad Q8400 2073

A8-3820 outperforms Core 2 Quad Q8400 by 5% 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%

A8-3820 299
Core 2 Quad Q8400 330
+10.4%

Core 2 Quad Q8400 outperforms A8-3820 by 10% 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%

A8-3820 912
Core 2 Quad Q8400 927
+1.6%

Core 2 Quad Q8400 outperforms A8-3820 by 2% in GeekBench 5 Multi-Core.

Gaming performance

Advantages and disadvantages


Performance score 1.42 1.35
Chip lithography 32 nm 45 nm
Power consumption (TDP) 65 Watt 95 Watt

We couldn't decide between A8-3820 and Core 2 Quad Q8400. The differences in performance seem too small.


Should you still have questions on choice between A8-3820 and Core 2 Quad Q8400, ask them in Comments section, and we shall answer.

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AMD A8-3820
A8-3820
Intel Core 2 Quad Q8400
Core 2 Quad Q8400

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User Ratings

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


3.5 47 votes

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Questions and comments

Here you can ask a question about A8-3820 or Core 2 Quad Q8400, agree or disagree with our judgements, or report an error or mismatch.