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AMD A4-9120C vs AMD A9-9420 vs AMD A9-9420e

AMD A4-9120C

► remove from comparison 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).

AMD A9-9420

► remove from comparison AMD A9-9420

The AMD A9-9420 is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation), which was announced mid 2016. At its launch, the A9-9420 is the fastest Stoney Ridge processor (dual-core version of Bristol Ridge) and takes over that place from the A9-9410 (-100 MHz CPU clock). It integrates two CPU cores (one Excavator module with 2 integer and on FP unit) clocked between 3 - 3.6 GHz. It also includes a Radeon R5 GPU with 192 shaders at 800 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

Thanks to the high maximum clock of up to 3.6 GHz, the single-core performance should be pretty good. The multi-core performance on the other hand is much lower compared to the Bristol Ridge models. Compared to older Carrizo-L/Beema quad-cores, the APU should still perform pretty well. The level of performance should be similar to a Core-m3 and therefore also be sufficient for more demanding applications.

The TDP can be configured between 10-25 Watts, so there can be big performance differences under sustained workloads.

Graphics Card

The integrated Radeon R5 (Stoney Ridge) GPU has 192 active shader units (3 compute cores) clocked at up to 800 MHz. More details about the GPU are available in the linked articles above. 

Power Consumption

AMD specifies the TDP of the A9-9420 with 15 Watts, but it can be configured between 10-25 Watts. This means the CPU is a good choice for thin and light notebooks, but also 15-inch devices with better cooling capabilities.

AMD A9-9420e

► remove from comparison 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.

ModelAMD A4-9120CAMD A9-9420AMD A9-9420e
SeriesAMD Bristol RidgeAMD Bristol RidgeAMD Bristol Ridge
CodenameStoney RidgeStoney RidgeStoney Ridge
Series: Bristol Ridge Stoney Ridge
AMD A9-94253.1 - 3.7 GHz2 / 2 cores
AMD A9-9420e - 2.5 GHz2 / 2 cores
AMD A9-94203 - 3.6 GHz2 / 2 cores
AMD A9-94102.9 - 3.5 GHz2 / 2 cores
AMD A6-92252.6 - 3.1 GHz2 / 2 cores
AMD A6-92202.5 - 2.9 GHz2 / 2 cores
AMD A6-9220C1.8 - 2.7 GHz2 / 2 cores
AMD A6-92102.4 - 2.8 GHz2 / 2 cores
AMD A4-91202.2 - 2.5 GHz2 / 2 cores
AMD A4-9120C « 1.6 - 2.4 GHz2 / 2 cores
AMD E2-90102 - 2.2 GHz2 / 2 cores
AMD E2-90001.8 - 2.2 GHz2 / 2 cores
AMD A6-9220e1.6 - 2.4 GHz2 / 2 cores
AMD A9-94253.1 - 3.7 GHz2 / 2 cores
AMD A9-9420e - 2.5 GHz2 / 2 cores
AMD A9-9420 « 3 - 3.6 GHz2 / 2 cores
AMD A9-94102.9 - 3.5 GHz2 / 2 cores
AMD A6-92252.6 - 3.1 GHz2 / 2 cores
AMD A6-92202.5 - 2.9 GHz2 / 2 cores
AMD A6-9220C1.8 - 2.7 GHz2 / 2 cores
AMD A6-92102.4 - 2.8 GHz2 / 2 cores
AMD A4-91202.2 - 2.5 GHz2 / 2 cores
AMD A4-9120C1.6 - 2.4 GHz2 / 2 cores
AMD E2-90102 - 2.2 GHz2 / 2 cores
AMD E2-90001.8 - 2.2 GHz2 / 2 cores
AMD A6-9220e1.6 - 2.4 GHz2 / 2 cores
AMD A9-94253.1 - 3.7 GHz2 / 2 cores
AMD A9-9420e « - 2.5 GHz2 / 2 cores
AMD A9-94203 - 3.6 GHz2 / 2 cores
AMD A9-94102.9 - 3.5 GHz2 / 2 cores
AMD A6-92252.6 - 3.1 GHz2 / 2 cores
AMD A6-92202.5 - 2.9 GHz2 / 2 cores
AMD A6-9220C1.8 - 2.7 GHz2 / 2 cores
AMD A6-92102.4 - 2.8 GHz2 / 2 cores
AMD A4-91202.2 - 2.5 GHz2 / 2 cores
AMD A4-9120C1.6 - 2.4 GHz2 / 2 cores
AMD E2-90102 - 2.2 GHz2 / 2 cores
AMD E2-90001.8 - 2.2 GHz2 / 2 cores
AMD A6-9220e1.6 - 2.4 GHz2 / 2 cores
Clock1600 - 2400 MHz3000 - 3600 MHz <=2500? MHz
L1 Cache160 KB
L2 Cache1 MB1 MB1 MB
Cores / Threads2 / 22 / 22 / 2
TDP6 Watt10-25 Watt
Transistors1200 Million1200 Million1200 Million
Technology28 nm28 nm28 nm
Die Size124.5 mm2124.5 mm2124.5 mm2
SocketBGABGABGA
FeaturesSingle-Channel DDR4-2133, Virtualization,Single-Channel DDR4-2133, Virtualization,Single-Channel DDR4-2133?, Virtualization,
iGPUAMD Radeon R4 (Stoney Ridge) ( - 600 MHz)AMD Radeon R5 (Stoney Ridge) ( - 800 MHz)AMD Radeon R5 (Stoney Ridge)
Architecturex86x86x86
Announced
max. Temp.90 °C90 °C

Benchmarks

Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
100%
1 A9-9420 +
min: 124     avg: 132     median: 134 (1%)     max: 138 Points
97 Points (1%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
100%
1 A9-9420 +
min: 75     avg: 80.3     median: 81 (24%)     max: 85 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 A9-9420 +
min: 1.56     avg: 1.6     median: 1.6 (2%)     max: 1.65 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 A9-9420 +
min: 0.96     avg: 1     median: 1 (25%)     max: 1 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 A9-9420 +
min: 2761     avg: 2868     median: 2875 (17%)     max: 2969 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 A9-9420 +
min: 4627     avg: 4830     median: 4841 (4%)     max: 5022 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 A9-9420 +
6757 Points (5%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 A9-9420 +
3410 Points (4%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 A9-9420 +
min: 673     avg: 710     median: 710 (8%)     max: 747 s
wPrime 2.10 - wPrime 2.0 32m *
100%
1 A9-9420 +
min: 20.78     avg: 21.3     median: 21.3 (4%)     max: 21.8 s
TrueCrypt - TrueCrypt Serpent
100%
1 A9-9420 +
0.1 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
100%
1 A9-9420 +
0.2 GB/s (4%)
TrueCrypt - TrueCrypt AES
100%
1 A9-9420 +
1.1 GB/s (3%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 A9-9420 +
min: 18     avg: 18.3     median: 18.3 (4%)     max: 18.6 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 A9-9420 +
min: 39.16     avg: 40.5     median: 40.5 (2%)     max: 41.8 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 A9-9420 +
min: 824     avg: 866     median: 866 (4%)     max: 908 s
3DMark 11 - 3DM11 Performance Physics
100%
1 A9-9420 +
min: 1569     avg: 1659     median: 1632 (4%)     max: 1776 Points
3DMark - 3DMark Ice Storm Physics
100%
1 A9-9420 +
19241 Points (16%)
3DMark - 3DMark Ice Storm Extreme Physics
100%
1 A9-9420 +
18148 Points (15%)
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 A9-9420 +
min: 18866     avg: 18895     median: 18894.5 (16%)     max: 18923 Points
3DMark - 3DMark Cloud Gate Physics
100%
1 A9-9420 +
min: 1375     avg: 1455     median: 1455 (4%)     max: 1535 Points
3DMark - 3DMark Fire Strike Standard Physics
100%
1 A9-9420 +
min: 2153     avg: 2155     median: 2155 (4%)     max: 2157 Points
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
100%
1 A9-9420 +
2120 ms (2%)
Sunspider - Sunspider 1.0 Total Score *
100%
1 A9-9420 +
148.1 ms (2%)
Octane V2 - Octane V2 Total Score
100%
1 A9-9420 +
min: 15762     avg: 17290     median: 17290 (16%)     max: 18818 Points

Average Benchmarks AMD A9-9420 → 0% n=

Average Benchmarks AMD A9-9420e → 0% n=

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

v1.26
log 25. 19:34:02

#0 checking url part for id 11211 +0s ... 0s

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#4 did not recreate cache, as it is less than 5 days old! Created at Sat, 25 May 2024 05:38:31 +0200 +0.001s ... 0.001s

#5 composed specs +0.045s ... 0.046s

#6 did output specs +0s ... 0.046s

#7 getting avg benchmarks for device 11211 +0.002s ... 0.048s

#8 got single benchmarks 11211 +0.01s ... 0.058s

#9 getting avg benchmarks for device 9184 +0.002s ... 0.061s

#10 got single benchmarks 9184 +0.015s ... 0.076s

#11 getting avg benchmarks for device 10052 +0.002s ... 0.078s

#12 got single benchmarks 10052 +0.005s ... 0.083s

#13 got avg benchmarks for devices +0s ... 0.083s

#14 min, max, avg, median took s +0.087s ... 0.17s

#15 return log +0s ... 0.17s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)