Notebookcheck

AMD A9-9425

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.

SeriesAMD Bristol Ridge
CodenameStoney Ridge
Series: 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 A4-9120C (compare)1600 - 2400 MHz2 / 2
AMD E2-9010 (compare)2000 - 2200 MHz2 / 2
AMD E2-9000 (compare)1800 - 2200 MHz2 / 2
Clock Rate3100 - 3700 MHz
Level 2 Cache1 MB
Number of Cores / Threads2 / 2
Max. Power Consumption (TDP = Thermal Design Power)10-25 Watt
Transistor Count1200 Million
Manufacturing Technology28 nm
Die Size124.5 mm2
Max. Temperature90 °C
SocketBGA
FeaturesSingle-Channel DDR4-2133, Virtualization,
GPUAMD Radeon R5 (Stoney Ridge) ( - 800 MHz)
64 Bit64 Bit support
Announcement Date06/01/2016

Benchmarks

Cinebench R15 - CPU Multi 64Bit
125 Points (3%)
Cinebench R15 - CPU Single 64Bit
76 Points (35%)
Cinebench R11.5 - CPU Single 64Bit
0.9 Points (37%)
Cinebench R10 - Rendering Single 32Bit
2686 Points (29%)
wPrime 2.0x - 1024m *
802.1 seconds (9%)
X264 HD Benchmark 4.0 - Pass 2
9.7 fps (0%)
X264 HD Benchmark 4.0 - Pass 1
50.5 fps (19%)
TrueCrypt - Serpent Mean 100MB
0.1 GB/s (6%)
TrueCrypt - Twofish Mean 100MB
0.2 GB/s (8%)
TrueCrypt - AES Mean 100MB
1 GB/s (5%)
3DMark 06 - CPU
2314 Points (16%)
Super Pi mod 1.5 XS 1M *
17 Seconds (4%)
Super Pi Mod 1.5 XS 32M *
852.5 Seconds (4%)
3DMark 11 - Performance Physics 1280x720
1527 points (8%)
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 (7%)
Geekbench 2 - 32 Bit - Stream
4145 Points (33%)
Geekbench 2 - 32 Bit - Memory
3069 Points (28%)
Geekbench 2 - 32 Bit - Floating Point
5175 Points (15%)
Geekbench 3 - 32 Bit Multi-Core Score
3323 Points (11%)
Geekbench 3 - 32 Bit Single-Core Score
2039 Points (42%)
Geekbench 3 - 64 Bit Single-Core Score
2228 Points (45%)
Geekbench 4.3 - 64 Bit Single-Core Score
2244 Points (35%)
Mozilla Kraken 1.1 - Total Score *
2466.3 ms (4%)
Sunspider - 1.0 Total Score *
176.3 ms (2%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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