AMD A4 Micro-6400T

AMD A4 Micro-6400T

The AMD A4 Micro-6400T is a mobile quad-core SoC (codenamed "Mullins") for tablets, which has been presented in April 2014. In addition to 4 CPU cores clocked at 1.0 - 1.6 GHz (boost clock), the 28 nanometer chip also integrates a Radeon R3 GPU, a single-channel DDR3L-1333 memory controller and the Southbridge with various I/O-ports.

Architecture

Both Beema (for notebooks) and Mullins (for tablets and compact subnotebooks, same die) are based on AMD's Puma+ architecture, which is the successor to the previous Jaguar design (Kabini and Temash APUs). Neither the performance per clock nor the feature set (including SSE up to 4.2, AVX and AES) have been modified. However, AMD managed to reduce the leakage current, enabling significantly higher (boost) clock speeds. This leads to a more responsive system and better overall performance. As its predecessor, the chip is manufactured in 28 nm.

Performance

In single thread tasks, the APU should be even faster than the former A4-5000 (15 W, 1.5 GHz), but clocks and performance may decrease substantially in long-lasting multi-thread benchmarks. Nonetheless, the Micro-6400T should be sufficient for simple workloads like Office, Internet browsing and multimedia.

Graphics

The SoC integrates a Radeon R3 GPU with 128 shaders, which is based on the GCN architecture and clocked at up to 350 MHz. On average, we expect the graphics performance to be similar to Intel's HD Graphics (Ivy Bridge) or a Radeon HD 8250. Current games (as of 2014) are thus hardly playable even in low settings, only a few older and less demanding titels should run fluently.

Power Consumption

The power consumption of the entire SoC is rated at 4.5 watts TDP (SDP: 2.8 W). Thus, the APU is suitable for passively cooled tablets.

SeriesAMD A-Series
CodenameMullins
Clock Rate1000 - 1600 MHz
Level 1 Cache256 KB
Level 2 Cache2048 KB
Number of Cores / Threads4 / 4
Max. Power Consumption (TDP = Thermal Design Power)4.5 Watt
Manufacturing Technology28 nm
FeaturesSSE (1, 2, 3, 3S, 4.1, 4.2, 4A), x86-64, AES, AVX, Single-Channel DDR3L-1333a
64 Bit64 Bit support
Hardware VirtualizationVT
Announcement Date04/29/2014

CPU Benchmarks

No benchmarks for this CPU found (yet).

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

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Surrounding CPUs

- AMD Athlon X2 QL-65
   2.1 GHz / 1 MB
- AMD Athlon X2 QL-64
   2.1 GHz / 1 MB
- Intel Celeron N2910
   1.6 GHz / 2 MB
- AMD Turion X2 RM-72
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- AMD A-Series A6-1450
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» AMD A-Series A4 Micro-6400T
   1 GHz / 2 MB
+ Intel Core Duo T2450
   2 GHz / 2048 KB
+ Intel Core 2 Duo T5550
   1.83 GHz / 2048 KB
+ Intel Core Duo T2400
   1.83 GHz / 2048 KB
+ Intel Celeron Dual-Core T1700
   1.83 GHz / 1024 KB
+ AMD Turion 64 X2 TL-62
   2.1 GHz / 1024 KB
> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Notebook Processors > AMD A-Series A4 Micro-6400T SoC
Author: Klaus Hinum (Update: 2014-04-29)