AMD A4-9120C vs AMD RX-421ND
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CPU comparison with benchmarks
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| AMD A4-9120C | AMD RX-421ND | |
CPU comparisonAMD A4-9120C or AMD RX-421ND - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The AMD A4-9120C has 2 cores with 2 threads and clocks with a maximum frequency of 2.40 GHz. Up to 8 GB of memory is supported in 1 memory channels. The AMD A4-9120C was released in Q1/2019. The AMD RX-421ND has 4 cores with 4 threads and clocks with a maximum frequency of 3.40 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD RX-421ND was released in Q4/2015. |
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| AMD A (112) | Family | AMD R (6) |
| AMD A4-9000 (2) | CPU group | AMD RX 1st Gen. (6) |
| 6 | Generation | 1 |
| Stoney Ridge (Excavator) | Architecture | Merlin Falcon (Excavator) |
| Mobile | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD A4-9120C is a 2 core processor with a clock frequency of 1.60 GHz (2.40 GHz). The AMD RX-421ND has 4 CPU cores with a clock frequency of 2.10 GHz (3.40 GHz). |
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| AMD A4-9120C | Characteristic | AMD RX-421ND |
| 2 | Cores | 4 |
| 2 | Threads | 4 |
| normal | Core architecture | normal |
| No | Hyperthreading | No |
| No | Overclocking ? | No |
| 1.60 GHz | Frequency | 2.10 GHz |
| 2.40 GHz | Turbo Frequency (1 Core) | 3.40 GHz |
| 2.00 GHz | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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| AMD Radeon R4 (Stoney Ridge) | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| -- | GPU (Turbo) | -- |
| 7 | GPU Generation | -- |
| 28 nm | Technology | |
| 3 | Max. displays | |
| 3 | Compute units | -- |
| 192 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 2 GB | Max. GPU Memory | -- |
| 12 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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| AMD Radeon R4 (Stoney Ridge) | GPU | no iGPU |
| Decode | Codec h265 / HEVC (8 bit) | No |
| Decode | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| Decode | Codec VP9 | No |
| Decode | Codec VP8 | No |
| No | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe AMD A4-9120C supports a maximum of 8 GB of memory in 1 memory channels. The AMD RX-421ND can connect up to GB of memory in 2 memory channels. |
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| AMD A4-9120C | Characteristic | AMD RX-421ND |
| DDR4-1866 | Memory | DDR4-2400, DDR3-2133 |
| 8 GB | Max. Memory | |
| 1 (Single Channel) | Memory channels | 2 (Dual Channel) |
| 15.0 GB/s | Max. Bandwidth | 38.4 GB/s |
| No | ECC | Yes |
| -- | L2 Cache | 2.00 MB |
| 2.00 MB | L3 Cache | -- |
| 3.0 | PCIe version | 3.0 |
| 8 | PCIe lanes | 12 |
| 7.9 GB/s | PCIe Bandwidth | 11.8 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD A4-9120C has a TDP of 6 W, that of the AMD RX-421ND is 35 W. |
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| AMD A4-9120C | Characteristic | AMD RX-421ND |
| 6 W | TDP (PL1 / PBP) | 35 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | 12 W |
| 90 °C | Tjunction max. | 90 °C |
Technical detailsThe AMD A4-9120C has a 2.00 MB cache, while the AMD RX-421ND cache has a total of 2.00 MB. |
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| AMD A4-9120C | Characteristic | AMD RX-421ND |
| 28 nm | Technology | 28 nm |
| Unknown | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
| FP4 | Socket | FP4 |
| AMD-V | Virtualization | AMD-V, AMD-Vt |
| Yes | AES-NI | Yes |
| Operating systems | ||
| Q1/2019 | Release date | Q4/2015 |
| -- | Release price | -- |
| show more data | show more data | |
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Rate these processors
iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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AMD A4-9120C
AMD Radeon R4 (Stoney Ridge) @ 0.60 GHz |
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AMD RX-421ND
@ 0.00 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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AMD A4-9120C
2C 2T @ 2.00 GHz |
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AMD RX-421ND
4C 4T @ 2.10 GHz |
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Devices using this processor |
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| AMD A4-9120C | AMD RX-421ND |
| Unknown | Unknown |
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