AMD A9-9425

AMD A9-9425

The AMD A9-9425 is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation), which was announced mid 2018. Compared to the 2 year older A9-9420, the 9425 offers a 100 MHz higher CPU clock speed (base and boost). It integrates two CPU cores (one Excavator module with 2 integer and on FP unit) clocked between 3.1 - 3.7 GHz. It also includes a Radeon R5 GPU with 192 shaders at 800 MHz as well as a single-channel DDR4-2133 memory controller, H.265 video engine and chipset with all I/O ports.


Stoney Ridge is the successor of the Carrizo architecture and the design is almost identical. Thanks to optimized manufacturing processes and more aggressive Boost behavior, however, the clocks are a bit higher at the same power consumption. The memory controller now also supports DDR4-RAM, in this case up to 2133 MHz. Stoney Ridge is the designation for the smaller dual-core and single-core chip, while Bristol Ridge is the bigger quad-core chip with dual-channel memory controller. More technical details are available in the following articles:


Thanks to the high maximum clock of up to 3.7 GHz, the single-core performance is adequate. The multi-core performance on the other hand is limited by the single module and therefore only positioned of the entry level of 2018 CPUs. That means the A9 is most suited for low demanding applications.

The TDP can be configured between 10-25 Watts, so there can be big performance differences under sustained workloads.

Graphics Card

The integrated Radeon R5 (Stoney Ridge) GPU has 192 active shader units (3 compute cores) clocked at up to 800 MHz. More details about the GPU are available in the linked articles above. 

Power Consumption

AMD specifies the TDP of the A9-9425 with 15 Watts, but it can be configured between 10-25 Watts. This means the CPU is a good choice for thin and light notebooks, but also 15-inch devices with better cooling capabilities.

SeriesAMD Bristol Ridge
CodenameStoney Ridge
Series: Bristol Ridge Stoney Ridge
» AMD A9-94253.1 - 3.7 GHz2 / 2
AMD A9-9420e compare0 - 2.5 GHz2 / 2
AMD A9-9420 compare3 - 3.6 GHz2 / 2
AMD A9-9410 compare2.9 - 3.5 GHz2 / 2
AMD A6-9225 compare2.6 - 3 GHz2 / 2
AMD A6-9220 compare2.5 - 2.9 GHz2 / 2
AMD A6-9220C compare1.8 - 2.7 GHz2 / 2
AMD A6-9210 compare2.4 - 2.8 GHz2 / 2
AMD A4-9120 compare2.2 - 2.5 GHz2 / 2
AMD A4-9120C compare1.6 - 2.4 GHz2 / 2
AMD E2-9010 compare2 - 2.2 GHz2 / 2
AMD E2-9000 compare1.8 - 2.2 GHz2 / 2
AMD A6-9220e compare1.6 - 2.4 GHz2 / 2
Clock Rate3100 - 3700 MHz
Level 2 Cache1 MB
Number of Cores / Threads2 / 2
Power Consumption (TDP = Thermal Design Power)10-25 Watt
Transistor Count1200 Million
Manufacturing Technology28 nm
Die Size124.5 mm2
Max. Temperature90 °C
FeaturesSingle-Channel DDR4-2133, Virtualization,
GPUAMD Radeon R5 (Stoney Ridge) ( - 800 MHz)
64 Bit64 Bit support
Announcement Date06/01/2016


Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
125 Points (3%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
2686 points (24%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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