AMD A6-9220C
The AMD A6-9220C is an entry-level chip from the Stoney-Ridge APU series for Chromebooks (7th APU generation from 2016), which was announced early 2019. Compared to the A6-9220, the 9220C is rated at a reduced TDP of 6 versus 15 Watt and also reduced clock speeds. It integrates two CPU cores (one Excavator module with 2 integer and on FP unit) clocked between 1.8 - 2.7 GHz (versus 2.5 - 2.9 GHz on the A6-9220).
Architecture
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:
Performance
Because of the significantly lower clock speed, the A6-9220C should be noticeably slower than the old A6-9220. AMD compares the performance against the Pentium N4200 in ChromeOS and sees the A6-9220C clearly ahead. The efficiency should be worse however, due to the old manufacturing process.
Graphics Card
The integrated Radeon R4 (Stoney Ridge) GPU is a bit controversal, as AMD states 3 compute cores which should translate to 192 shaders.
Power Consumption
AMD specifies the TDP of the A6-9220C with 6 Watts which should enable thin and light (even fanless) Chromebooks.
Series | AMD Bristol Ridge | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Stoney Ridge | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Bristol Ridge Stoney Ridge
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Clock Rate | 1800 - 2700 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 1 Cache | 160 KB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 2 Cache | 1 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Number of Cores / Threads | 2 / 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Power Consumption (TDP = Thermal Design Power) | 6 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Transistor Count | 1200 Million | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturing Technology | 28 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Die Size | 124.5 mm2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Max. Temperature | 90 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Socket | BGA | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | Single-Channel DDR4-2133, Virtualization, | ||||||||||||||||||||||||||||||||||||||||||||||||||||
GPU | AMD Radeon R5 (Stoney Ridge) ( - 720 MHz) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
64 Bit | 64 Bit support | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Announcement Date | 01/31/2019 |
Benchmarks
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
Reviews for the AMD A6-9220C processor
Lenovo Chromebook 3 11, A6-9220C: AMD Radeon R5 (Stoney Ridge), 11.60", 1.1 kg
External Review » Lenovo Chromebook 3 11, A6-9220C
Lenovo 14w (no touch): AMD Radeon R5 (Stoney Ridge), 14.00", 1.5 kg
External Review » Lenovo 14w (no touch)