The AMD A6-9225 is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation), which was announced mid 2018. Compared to the one year older A4-9220, the A4-9225 has a 200 MHz higher CPU Boost clock but a slower iGPU. It integrates two CPU cores (one Excavator module with 2 integer and one FP unit) clocked at 2.6 GHz to 3.1 GHz. It also includes a Radeon R4 GPU, probably with 192 shaders at up to 686 MHz, as well as a single-channel DDR4-2133 memory controller, H.265 video decoder and chipset with all I/O ports.
Stoney Ridge is the successor to 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:
The average 9225 in our database proves to be a very, very, very slow processor, its multi-thread benchmark scores only just matching those of Core 2 Duo P8600, a dual-core CPU that saw the light of day in 2008. This is a record-breakingly poor performance and a warning to anyone looking to purchase a system built around this specific A6 series CPU.
The integrated Radeon R4 (Stoney Ridge) GPU is probably similar to the R5 with 192 active shader units (3 compute cores), but a reduced clock of just 686 MHz instead of 800 MHz. More details about the GPU are available in the linked articles above.
This AMD A6 has a default TDP (also known as the long-term power limit) of 15 W. Laptop manufacturers are allowed to reduce that value somewhat, 10 W being the lower limit, with clock speeds and performance changing accordingly as a result. Choosing the lowest value possible will allow for passively cooled designs.
Last but not the least, the CPU is built with a very old (as of early 2023) 28 nm process leading to very low energy efficiency.