AMD A9-9425 vs AMD A4-9120C

AMD A9-9425

► remove AMD A9-9425

The AMD A9-9425 is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation), which was announced mid 2018. Compared to the 2 year older A9-9420, the 9425 offers a 100 MHz higher CPU clock speed (base and boost). It integrates two CPU cores (one Excavator module with 2 integer and on FP unit) clocked between 3.1 - 3.7 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 3.7 GHz, the single-core performance is adequate. The multi-core performance on the other hand is limited by the single module and therefore only positioned of the entry level of 2018 CPUs. That means the A9 is most suited for low 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 A9-9425 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 A4-9120C

► remove 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 A9-9425AMD A4-9120C
AMD Bristol RidgeAMD Bristol Ridge
Stoney RidgeStoney Ridge
: Bristol Ridge Stoney Ridge
» AMD A9-94253100 - 3700 MHz2 / 2
AMD A9-9420e (compare) - 2500? MHz2 / 2
AMD A9-9420 (compare)3000 - 3600 MHz2 / 2
AMD A9-9410 (compare)2900 - 3500 MHz2 / 2
AMD A6-9225 (compare)2600 - 3000 MHz2 / 2
AMD A6-9220 (compare)2500 - 2900 MHz2 / 2
AMD A6-9220C (compare)1800 - 2700 MHz2 / 2
AMD A6-9210 (compare)2400 - 2800 MHz2 / 2
AMD A4-9120 (compare)2200 - 2500 MHz2 / 2
AMD A4-9120C1600 - 2400 MHz2 / 2
AMD E2-9010 (compare)2000 - 2200 MHz2 / 2
AMD E2-9000 (compare)1800 - 2200 MHz2 / 2
AMD A9-94253100 - 3700 MHz2 / 2
AMD A9-9420e (compare) - 2500? MHz2 / 2
AMD A9-9420 (compare)3000 - 3600 MHz2 / 2
AMD A9-9410 (compare)2900 - 3500 MHz2 / 2
AMD A6-9225 (compare)2600 - 3000 MHz2 / 2
AMD A6-9220 (compare)2500 - 2900 MHz2 / 2
AMD A6-9220C (compare)1800 - 2700 MHz2 / 2
AMD A6-9210 (compare)2400 - 2800 MHz2 / 2
AMD A4-9120 (compare)2200 - 2500 MHz2 / 2
» AMD A4-9120C1600 - 2400 MHz2 / 2
AMD E2-9010 (compare)2000 - 2200 MHz2 / 2
AMD E2-9000 (compare)1800 - 2200 MHz2 / 2
3100 - 3700 MHz1600 - 2400 MHz
1 MB1 MB
2 / 22 / 2
10-25 6
1200 1200
28 28
124.5 mm2124.5 mm2
90 °C
BGABGA
Single-Channel DDR4-2133, Virtualization,Single-Channel DDR4-2133, Virtualization,
iGPUAMD Radeon R5 (Stoney Ridge) ( - 800 MHz)AMD Radeon R4 (Stoney Ridge) ( - 600 MHz)
160 KB

Cinebench R20 - CPU (Single Core)
195 Points (38%)
Cinebench R20 - CPU (Multi Core)
284 Points (3%)
Cinebench R15 - CPU Multi 64Bit
125 Points (3%)
0102030405060708090100110120130Tooltip
Cinebench R15 - CPU Single 64Bit
76 Points (35%)
Cinebench R11.5 - CPU Multi 64Bit
1.5 Points (4%)
Cinebench R11.5 - CPU Single 64Bit
0.9 Points (37%)
Cinebench R10 - Rendering Single 32Bit
2686 Points (28%)
Cinebench R10 - Rendering Multiple CPUs 32Bit
4338 Points (7%)
wPrime 2.0x - 1024m *
802 seconds (9%)
wPrime 2.0x - 32m *
25.8 seconds (5%)
WinRAR - Result
891 KB/s (10%)
X264 HD Benchmark 4.0 - Pass 2
9.7 fps (6%)
X264 HD Benchmark 4.0 - Pass 1
50.5 fps (18%)
TrueCrypt - Serpent Mean 100MB
0.1 GB/s (6%)
TrueCrypt - Twofish Mean 100MB
0.2 GB/s (0%)
TrueCrypt - AES Mean 100MB
1 GB/s (5%)
3DMark 06 - CPU
2314 Points (15%)
Super Pi mod 1.5 XS 1M *
17 Seconds (4%)
Super Pi mod 1.5 XS 2M *
38.2 Seconds (2%)
Super Pi Mod 1.5 XS 32M *
853 Seconds (4%)
3DMark 11 - Performance Physics 1280x720
1527 points (7%)
3DMark - Ice Storm Standard Physics 1280x720
16539 Points (11%)
3DMark - Ice Storm Extreme Physics 1920x1080
15856 Points (19%)
3DMark - Ice Storm Unlimited Physics 1280x720 offscreen
19290 Points (22%)
3DMark - Cloud Gate Standard Physics 1280x720
1269 Points (3%)
3DMark - Fire Strike Physics 1920x1080
1823 Points (6%)
Geekbench 2 - 32 Bit - Stream
4145 Points (33%)
Geekbench 2 - 32 Bit - Memory
3069 Points (28%)
Geekbench 2 - 32 Bit - Floating Point
5175 Points (10%)
Geekbench 2 - 32 Bit - Integer
4798 Points (10%)
Geekbench 2 - 32 Bit - Total Score
4518 Points (12%)
Geekbench 3 - 32 Bit Multi-Core Score
3323 Points (6%)
Geekbench 3 - 32 Bit Single-Core Score
2039 Points (42%)
Geekbench 3 - 64 Bit Multi-Core Score
3605 Points (6%)
Geekbench 3 - 64 Bit Single-Core Score
2228 Points (45%)
Geekbench 4.4 - 64 Bit Single-Core Score
2244 Points (35%)
Geekbench 4.4 - 64 Bit Multi-Core Score
3636 Points (6%)
Mozilla Kraken 1.1 - Total Score *
2466 ms (4%)
Sunspider - 1.0 Total Score *
176 ms (2%)
Octane V2 - Total Score
13562 Points (26%)

Average Benchmarks AMD A9-9425 → 100%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)