AMD A4-9120

The AMD A4-9120 is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation), which was announced mid 2017. At its launch, the A4-9210 is a mid-range Stoney Ridge processor (dual-core version of Bristol Ridge) and integrates two CPU cores (one Excavator module with 2 integer and on FP unit) clocked between 2.2 - 2.5 GHz. It also includes a Radeon R3 GPU with 128 shaders at 655 MHz, 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:

• AMD's Bristol Ridge and Stoney Ridge Architecture
• AMD: Bristol Ridge APUs announced

Performance

Because of the significantly lower clock range, the A4-9120 should be noticeably slower than the A6-9210 or A9-9410.

Graphics Card

The integrated Radeon R2 (Stoney Ridge) GPU offers only 2 CUs (=128 shaders) and a core clock of 655 MHz. More details about the GPU are available in the linked articles above. 

Power Consumption

AMD specifies the TDP of the A4-9120 with 15 Watts, but it can be configured between 10-15 Watts. This means the APU is a good choice for thin and light notebooks.

Codename	Stoney Ridge
Series	AMD Bristol Ridge
Series: Bristol Ridge Stoney Ridge AMD A9-9425 3.1 - 3.7 GHz 2 / 2  AMD A9-9420e - 2.5 GHz 2 / 2  AMD A9-9420 3 - 3.6 GHz 2 / 2  AMD A9-9410 2.9 - 3.5 GHz 2 / 2  AMD A6-9225 2.6 - 3.1 GHz 2 / 2  AMD A6-9220 2.5 - 2.9 GHz 2 / 2  AMD A6-9220C 1.8 - 2.7 GHz 2 / 2  AMD A6-9210 2.4 - 2.8 GHz 2 / 2  AMD A4-9120 « 2.2 - 2.5 GHz 2 / 2  AMD A4-9120C 1.6 - 2.4 GHz 2 / 2  AMD E2-9010 2 - 2.2 GHz 2 / 2  AMD E2-9000 1.8 - 2.2 GHz 2 / 2  AMD A6-9220e 1.6 - 2.4 GHz 2 / 2
Clock Rate	2200 - 2500 MHz
Level 1 Cache	160 KB
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 R2 (Stoney Ridge) ( - 655 MHz)
64 Bit	64 Bit support
Architecture	x86
Announcement Date	06/01/2017
Product Link (external)	products.amd.com

Benchmarks

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

Other CPUs of the series Bristol Ridge

Surrounding CPUs