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AMD A4-9120C

AMD A4-9120C

The AMD A4-9120C is an entry-level chip from the Stoney-Ridge APU series for Chromebooks and entry level laptops (7th APU generation from 2016), which was announced early 2019. It is based on the similar named A4-9120 from 2016 but with a reduced TDP (6 versus 15 Watt) and reduced clock speeds of 1.6 - 2.4 GHz (compared to 2.2 - 2.5 GHz). Both CPUs integrate two CPU cores (one Excavator module with 2 integer and on FP unit).

It also includes a Radeon R4 GPU with 192 shaders at 600 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:

Performance

Because of the significantly lower clock speed, the A4-9120C should be noticeably slower than the old A4-9120. AMD compares the A4-9120C with the Celeron N3350 in ChromeOS and sees a significant performance advantage for the A4. The efficiency however should be clearly worse as the A4-9120C is still manufactured in 28nm.

Power Consumption

AMD specifies the TDP of the A4-9120C with 6 Watts which should enable thin and light Chromebooks (even fanless).

SeriesAMD Bristol Ridge
CodenameStoney Ridge
Series: Bristol Ridge Stoney Ridge
AMD A9-9425 compare3100 - 3700 MHz2 / 2
AMD A9-9420e compare - 2500? MHz2 / 2
AMD A9-9420 compare3000 - 3600 MHz2 / 2
AMD A9-9410 compare2900 - 3500 MHz2 / 2
AMD A6-9225 compare2600 - 3000 MHz2 / 2
AMD A6-9220 compare2500 - 2900 MHz2 / 2
AMD A6-9220C compare1800 - 2700 MHz2 / 2
AMD A6-9210 compare2400 - 2800 MHz2 / 2
AMD A4-9120 compare2200 - 2500 MHz2 / 2
» AMD A4-9120C1600 - 2400 MHz2 / 2
AMD E2-9010 compare2000 - 2200 MHz2 / 2
AMD E2-9000 compare1800 - 2200 MHz2 / 2
AMD A6-9220e compare1600 - 2400 MHz2 / 2
Clock Rate1600 - 2400 MHz
Level 1 Cache160 KB
Level 2 Cache1 MB
Number of Cores / Threads2 / 2
Power Consumption (TDP = Thermal Design Power)6 Watt
Transistor Count1200 Million
Manufacturing Technology28 nm
Die Size124.5 mm2
SocketBGA
FeaturesSingle-Channel DDR4-2133, Virtualization,
GPUAMD Radeon R4 (Stoney Ridge) ( - 600 MHz)
64 Bit64 Bit support
Announcement Date01/06/2019

Benchmarks

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

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

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show all (including archived), 2020, 2019
v1.15

Reviews for the AMD Bristol Ridge A4-9120C processor

Acer Chromebook 15 CB315-2H-4451 (AMD Radeon R4 (Stoney Ridge), 15.6")
» Acer Chromebook 15 CB315-2H-4451 - External Review

Acer Chromebook 315 CB315-2HT (AMD Radeon R4 (Stoney Ridge), 15.6")
» Acer Chromebook 315 CB315-2HT - External Review

Acer Chromebook CB315-2HT-47WG (AMD Radeon R4 (Stoney Ridge), 15.6")
» Acer Chromebook CB315-2HT-47WG - External Review

Acer Chromebook Spin 311 R721T-482Z (AMD Radeon R4 (Stoney Ridge), 11.6")
» Acer Chromebook Spin 311 R721T-482Z - External Review

Acer TravelMate B114-21-42BG (AMD Radeon R4 (Stoney Ridge), 14")
» Acer TravelMate B114-21-42BG - External Review

HP Chromebook 11A G6 EE-6HL33EA (AMD Radeon R4 (Stoney Ridge), 11.6")
» HP Chromebook 11A G6 EE-6HL33EA - External Review

HP Chromebook 14-db0020nr (AMD Radeon R4 (Stoney Ridge), 14")
» HP Chromebook 14-db0020nr - External Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Bristol Ridge

» AMD FX-9830P
   4x 3 GHz - 3.7 GHz
» AMD PRO A12-9830B
   4x 3 GHz - 3.7 GHz
» AMD FX-9800P
   4x 2.7 GHz - 3.6 GHz
» AMD PRO A12-9800B
   4x 2.7 GHz - 3.6 GHz
» AMD A12-9720P
   4x 2.7 GHz - 3.6 GHz
» AMD A12-9700P
   4x 2.5 GHz - 3.4 GHz
» AMD A10-9620P
   4x 2.5 GHz - 3.4 GHz
» AMD A10-9600P
   4x 2.4 GHz - 3.3 GHz
» AMD PRO A8-9600B
   4x 2.4 GHz - 3.3 GHz
» AMD A9-9425
   2x 3.1 GHz - 3.7 GHz
» AMD A9-9420e
   2x - 2.5 GHz
» AMD A9-9420
   2x 3 GHz - 3.6 GHz
» AMD A9-9410
   2x 2.9 GHz - 3.5 GHz
» AMD A6-9225
   2x 2.6 GHz - 3 GHz
» AMD A6-9220
   2x 2.5 GHz - 2.9 GHz
» AMD A6-9220C
   2x 1.8 GHz - 2.7 GHz
» AMD A6-9210
   2x 2.4 GHz - 2.8 GHz
» AMD A4-9120
   2x 2.2 GHz - 2.5 GHz
» AMD A4-9120C
   2x 1.6 GHz - 2.4 GHz
» AMD E2-9010
   2x 2 GHz - 2.2 GHz
» AMD E2-9000
   2x 1.8 GHz - 2.2 GHz
» AMD A6-9220e
   2x 1.6 GHz - 2.4 GHz

Surrounding CPUs

+ Intel Pentium J2850
   4x 2.4 GHz
+ Intel Pentium N3520
   4x 2.17 GHz - 2.42 GHz
+ Intel Celeron J1900
   4x 2 GHz - 2.42 GHz
+ Intel Atom x7-Z8700
   4x 1.6 GHz - 2.4 GHz
+ AMD A4-9120
   2x 2.2 GHz - 2.5 GHz
» AMD A4-9120C
   2x 1.6 GHz - 2.4 GHz
- Intel Core i3-4010Y
   2x 1.3 GHz
- AMD E2-9010
   2x 2 GHz - 2.2 GHz
- AMD E2-7110
   4x 1.8 GHz
- AMD A4-6210
   4x 1.8 GHz
- AMD A6-8500P
   2x 1.6 GHz - 3 GHz
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Klaus Hinum (Update: 2019-01- 6)