AMD A9-9420e

The AMD A9-9420e is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation). It was first found in the Dell Inspiron 3000 with passive cooling and 4 GB DDR4 RAM. The performance in that device was way below the normal A9-9420 as the clock speed only reached up to 2,5 GHz. It also includes a Radeon R5 GPU with 192 shaders as well as a single-channel DDR4-2133 memory controller, H.265 video engine and chipset with all I/O ports.
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:
Power Consumption
AMD specifies the TDP of the A9-9420 between 10-25 Watts, but the passively cooled A9-9420e should be positioned lower than 9 Watt.
Codename | Stoney Ridge | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series | AMD Bristol Ridge | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Series: Bristol Ridge Stoney Ridge
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Clock Rate | <=2500? MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 2 Cache | 1 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Number of Cores / Threads | 2 / 2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Power Consumption (TDP = Thermal Design Power) | 15 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) | ||||||||||||||||||||||||||||||||||||||||||||||||||||
64 Bit | 64 Bit support | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
Announcement Date | 06/01/2018 |
Benchmarks

* Smaller numbers mean a higher performance
Reviews for the AMD A9-9420e processor
Dell Inspiron 11 3195 2-in-1: AMD Radeon R5 (Stoney Ridge), 11.60", 1.2 kg
External Review » Dell Inspiron 11 3195 2-in-1