AMD A9-9420e SoC socket: Socket FT4

What the A9-9420e SoC is

The A9-9420e SoC is a two core, two thread mobile processor from Stoney Ridge. It launched in May 2016 with a 1.8 GHz base and up to 2.7 GHz boost at 6 W. The lowest power A9 in the set covers sealed tablets where battery life decides the design.

One megabyte of L2 cache feeds light office work. The low 1.8 GHz base keeps idle power minimal, while 2.7 GHz boost gives short peaks. Six watts allow tiny bodies without vents.

Radeon graphics handle streaming without a discrete card. Single channel DDR4 keeps costs down. The e suffix marks efficiency bins below standard 15 W parts.

On 28 nm the 9420e solders to FT4 boards for fanless service. It sits below the 9420 on clocks and power. Locked multiplier keeps behavior steady.

Socket and motherboard compatibility

The A9-9420e solders to Socket FT4 with no upgrade path. Sealed tablet choice fixes the chip for life. Boards tune 6 W for passive cases.

Tablets pair it with soldered DDR4 and eMMC. The How to find your CPU socket type guide covers BGA identification.

The A9-9420 SoC on the same socket adds clocks at higher power. The A6-9200 SoC is the lower cost alternative.

Memory, PCIe and cooling

DDR4-2133 single channel is the memory target. Capacity follows soldered designs. Bandwidth suits office tasks.

Eight PCIe lanes wire storage and Wi-Fi. Speeds fit thin clients.

Six watts cool passively. Battery swaps are the main service item.

Upgrade paths

No CPU swap exists on soldered FT4. OS updates extend tablet life.

A new device is the path past dual cores.