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AMD A8-5600K vs Intel Core 2 Quad Q8400

Mini Review

AMD A8-5600K advantages

  • SSE4.2 instructions are enabled on this processor.
  • The CPU has Advanced Encryption Standard (AES) extension to the instruction set. This technology accelerates AES encryption and decryption, and is useful if you need to secure your disk or network data.
  • The AMD A8-5600K supports AVX, F16C, FMA3 and XOP instructions. Even though these extensions are not broadly used by programs yet, their support should improve in future applications.
  • The AMD A8-5600K includes FMA4 instruction set extension. The FMA4 technology is only available on AMD processors, therefore it may not get broad support from software vendors.
  • The processor features unlocked clock multiplier. The CPU can be effortlessly overclocked on most motherboards to achieve better performance. Be aware that overclocking can void processor warranty.
  • The CPU has integrated Radeon HD 7560D GPU. This graphics unit replaces low-end graphics card, and thus lowers the cost of the system.
  • The Socket FM2, used by the microprocessor, is still actively supported by AMD. The company has plans to launch more CPUs for the socket in the future.

Intel Core 2 Quad Q8400 advantages

  • Based on our estimates, single-threaded performance of the Core 2 Quad Q8400 is better.
  • In multi-threaded tasks, it is estimated that the CPU is 3% faster.
  • Power consumption of the processor is lower.

A8-5600K vs Q8400 estimated performance

The charts in the table below demonstrate performance of A8-5600K and Core 2 Quad Q8400 processors. Performance numbers for A8-5600K were determined based on a variety of benchmarks. Results for Core 2 Quad Q8400 were approximated from test results of other microprocessors with the same core and microarchitecture. As a note, the estimate has greater error of margin than results obtained using real-world tests. Also, this is an averaged performance, and the difference in individual benchmarks may be lower or higher than what you see in the charts here.
Single-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.12
 
 
Higher is better
Multi-threaded performance
2
1.6
1.2
0.8
0.4
0
 
 
1
 
1.03
 
 
Higher is better

  - AMD A8-5600K       - Intel Core 2 Quad Q8400

A8-5600K vs Q8400 specifications comparison

The graphs below compare the most important A8-5600K and Q8400 characteristics. These features, as well as an IPC (instructions per cycle) number, determine how well a CPU performs. The "Operating frequency" chart uses dark color to represent base frequency, whereas lighter area is for additional frequency, provided by Turbo feature.

The number of cores / threads
5
4
3
2
1
0
 
 
4
 
4
 
 
Higher is better
Operating frequency
5
4
3
2
1
0
 
 
3.9GHz
 
2.67GHz
 
 
Higher is better
Thermal Design Power
200
160
120
80
40
0
 
 
100W
 
95W
 
 
Lower is better
 

  - AMD A8-5600K       - Intel Core 2 Quad Q8400

Please see the "Specifications" tab for detailed side by side comparison of AMD A8-5600K vs Q8400 specs.


Pros and Cons summary

A8-5600K Core 2 Quad Q8400
General recommendations:
Supports SSE4.2 / AVX / F16C / FMA3 / XOP instructions,
Allows simple overclocking,
Comes with Radeon HD 7560D GPU,
New CPUs are planned for the socket
  General recommendations:
Performs somewhat better in single- and multi-threaded programs,
Needs less power

Drawbacks:

Slightly higher power
 

Drawbacks:

Lacks some instructions,
No on-chip graphics,
No products planned for the socket

Similar processors

A8-5600K Core 2 Quad Q8400
 

Similar processors use the same socket and architecture as AMD A8-5600K and Core 2 Quad Q8400, but their performance and other characteristics are a bit different.

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More comparisons

Compare AMD A8-5600K with...

Other Core 2 Quad CPU:

Any CPU:


Compare Intel Core 2 Quad Q8400 with...

Other A8-Series CPU:

Any CPU:


Note: To see differences with any CPU, type in any combination of the following into the "Any CPU" field: manufacturer name, full or partial family name, model number, part number, core name, socket name, operating frequency, bus speed (must have FSB suffix), and the last level cache. Here are some valid searches:

  i5-3570K
  Intel Celeron 2 GHz
  Piledriver
  Pentium 4 800FSB
  AMD 3.3GHz 8MB

Specifications

Please visit AMD A8-5600K and Intel Core 2 Quad Q8400 pages for more detailed specifications of both microprocessors.

 AMD A8-5600KIntel Core 2 Quad Q8400
Market segmentDesktop
ManufacturerAMDIntel
FamilyA8-SeriesCore 2 Quad
Basic details
Model numberA8-5600KQ8400
CPU part numberAD560KWOA44HJAT80580PJ0674ML
AT80580PJ067HL
Box part numberAD560KWOHJBOXBX80580Q8400
BXC80580Q8400
Introduction dateOctober 2, 2012April 19, 2009
Current official price$91 (as of Apr 2014) 
 
CPU features
Core nameTrinityYorkfield
Platform nameVirgo 
MicroarchitecturePiledriverCore
Technology (micron)0.0320.045
Data width (bits)64
SocketSocket FM2Socket 775
Frequency (MHz)36002667
Turbo Frequency (MHz)3900 
Bus speed (MHz) 1333
Clock Multiplier 8
L1 cache128 KB (code) / 64 KB (data)128 KB (code) / 128 KB (data)
L2 cache (KB)4096
Max temperature (°C)7471.4
TDP (Watt)10095
Core voltage (V)0.825 - 1.4750.85 - 1.3625
Cores4
Threads4
Multiprocessing1
 
Instruction set extensions
AES / Advanced Encryption Standard+-
AMD64 / EM64T 64-bit technology+
AVX / Advanced Vector Extensions+-
BMI1 / Bit Manipulation+-
F16C / 16-bit Floating-Point conversion+-
FMA3 / 3-operand Fused Multiply-Add+-
FMA4 / 4-operand Fused Multiply-Add+-
MMX+
SSE+
SSE2+
SSE3+
SSE4.1+
SSE4.2+-
SSSE3 / Supplemental SSE3+
XOP / eXtended Operations+-
 
Supported technologies
PowerNow! / Enhanced SpeedStep+
Turbo Core / Turbo Boost+-
Unlocked multiplier+-
Virtualization+
Virus Protection / Execute Disable bit+
 
Integrated Graphics
GPU TypeRadeon HD 7560DNone
 
Integrated Memory Controller(s)
The number of controllers10
Notes:

Rows with different specifications or features are highlighted.

For detailed specifications of "AMD A8-5600K" or "Intel Core 2 Quad Q8400" parts please click on the links in the table header.

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