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AMD A6-6400K

AMD AMD A6-6400K

The AMD A6-6400K is a desktop APU from the Richland series. The chip is produced ​​in a 32nm process and integrates 1 module with 2 CPU cores clocked at 3.9 to 4.1 GHz. Furthermore, the 6400K has a Radeon HD 8470D graphics unit and a DDR3-1600 memory controller. 

The CPU cores are based on a reworked Bulldozer architecture called Piledriver. Although marketed as a Dual-core processor, the A6-6400K includes only one module with two integer-cores and one floating-point unit in total. As a result, the CPU is not a true dual-core processor.

The CPU performance of the A6-6400K is about on a level of a 2.2 to 2.4 GHz Pentium processor of the Sandy Bridge generation.

The integrated DirectX 11-compatible Radeon HD 8470D offers only 192 of the 384 shader cores of the Richland chip and a core clock of 800 MHz with no Turbo support. 

The power consumption of the entire desktop APU is rated at 65 Watts.

SeriesAMD A-Series (Desktop)
CodenameRichland
Clock Rate3900 - 4100 MHz
Level 2 Cache4096 KB
Number of Cores / Threads2 / 2
Max. Power Consumption (TDP = Thermal Design Power)65 Watt
Transistor Count1303 Million
Manufacturing Technology32 nm
Die Size246 mm2
SocketFM2
FeaturesMMX, SSE1-4a, AES, ABM, AVX, BMI1, AMD64, VT, EVP, Turbo Core 3.0
64 Bit64 Bit support
Hardware VirtualizationVT
Announcement Date06/04/2013

CPU Benchmarks

Cinebench R15: CPU Single 64Bit
0% 100%
min: 88     avg: 88 (51.85%)     max: 88 Points
Cinebench R15: CPU Multi 64Bit
0% 100%
min: 149     avg: 149 (9.47%)     max: 149 Points
3DMark (2013): Fire Strike Standard Physics 1920x1080
0% 100%
min: 2268     avg: 2268 (12.78%)     max: 2268 Points
3DMark (2013): Cloud Gate Standard Physics 1280x720
0% 100%
min: 899     avg: 899 (1.86%)     max: 899 Points
3DMark (2013): Ice Storm Extreme Physics 1920x1080
0% 100%
min: 11502     avg: 11502 (24.14%)     max: 11502 Points
3DMark (2013): Ice Storm Standard Physics 1280x720
0% 100%
min: 11495     avg: 11495 (21.23%)     max: 11495 Points
TrueCrypt: Serpent Mean 100MB
0% 100%
min: 0.107     avg: 0.1 (5.18%)     max: 0.107 GB/s
TrueCrypt: Twofish Mean 100MB
0% 100%
min: 0.193     avg: 0.2 (10.38%)     max: 0.193 GB/s
TrueCrypt: AES Mean 100MB
0% 100%
min: 0.958     avg: 1 (10.5%)     max: 0.958 GB/s
X264 HD Benchmark 4.0: Pass 2
0% 100%
min: 11.2     avg: 11.2 (11.19%)     max: 11.2 fps
X264 HD Benchmark 4.0: Pass 1
0% 100%
min: 56.9     avg: 56.9 (28.55%)     max: 56.9 fps
3DMark 11: Performance Physics 1280x720
0% 100%
min: 1998     avg: 1998 (15.12%)     max: 1998 points
3DMark Vantage: P CPU no PhysX 1280x1024
0% 100%
min: 5122     avg: 5122 (12.81%)     max: 5122 Points
3DMark 06 - CPU:
0% 100%
min: 2654     avg: 2654 (28.36%)     max: 2654 Points
Cinebench R11.5: CPU Single 64Bit
0% 100%
min: 0.83     avg: 0.8 (42.05%)     max: 0.83 Points
Cinebench R11.5: CPU Multi 64Bit
0% 100%
min: 1.66     avg: 1.7 (8.29%)     max: 1.66 Points
Cinebench R10: Rendering Single CPUs 64Bit
0% 100%
min: 4123     avg: 4123 (16.53%)     max: 4123 Points
Cinebench R10: Rendering Multiple CPUs 64Bit
0% 100%
min: 6868     avg: 6868 (17.02%)     max: 6868 Points
Cinebench R10: Rendering Single 32Bit
0% 100%
min: 3007     avg: 3067.5 (44.92%)     max: 3128 Points
Cinebench R10: Rendering Multiple CPUs 32Bit
0% 100%
min: 5063     avg: 5079 (14.6%)     max: 5095 Points
- Range of benchmarks for this CPU
- Average benchmark score

Cinebench R10 in comparison
Intel Atom Z670 (min)
691 
...
Intel Pentium 2127U
5016 
AMD Kaveri A10-7300
5039 
Intel Pentium B940
5066.5 
AMD A-Series (Desktop) AMD A6-6400K
5079 
Intel Core 2 Duo (Desktop) E6700
5110 
AMD A-Series A8-3500M
5148.3 
AMD Phenom II X3 N850
5169 
...
Intel Xeon (Desktop) E5-2697 v2 (max)
34776 

:: No reviews found for this CPU (yet).

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Other CPUs of the series AMD A-Series (Desktop)

» AMD A-Series (Desktop) A10-7850K
   3.7 GHz / 4 MB
» AMD A-Series (Desktop) A10-7700K
   3.4 GHz / 4 MB
» AMD A-Series (Desktop) A8-3850
   2.9 GHz / 4 MB
» AMD A-Series (Desktop) AMD A4-5300
   3.4 GHz / 2 MB

Surrounding CPUs

- Intel Core i5 4220Y
   1.6 GHz / 0.5 MB + 3 MB
- Intel Core i7 640LM
   2.13 GHz / 0.5 MB + 4 MB
- Intel Core i7 620LM
   2 GHz / 0.5 MB + 4 MB
- Intel Core i3 4100U
   1.8 GHz / 0.5 MB + 3 MB
- Intel Core i3 3227U
   1.9 GHz / 0.5 MB + 3 MB
+ Intel Core i5 4210Y
   1.5 GHz / 512 KB + 3072 KB
+ Intel Core i5 2467M
   1.6 GHz / 512 KB + 3072 KB
+ Intel Core M 5Y70
   1.1 GHz / 512 KB + 4096 KB
+ Intel Core i5 3339Y
   1.5 GHz / 512 KB + 3072 KB
+ Intel Core i3 4010U
   1.7 GHz / 512 KB + 3072 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > AMD A-Series A6-6400B Desktop Processor
Author: Klaus Hinum (Update: 2013-07- 9)