Intel Atom C3508 vs AMD RX-421BD
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CPU comparison with benchmarks
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| Intel Atom C3508 | AMD RX-421BD | |
CPU comparisonIntel Atom C3508 or AMD RX-421BD - 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 Intel Atom C3508 has 4 cores with 4 threads and clocks with a maximum frequency of 1.60 GHz. Up to 256 GB of memory is supported in 2 memory channels. The Intel Atom C3508 was released in Q3/2017. The AMD RX-421BD 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-421BD was released in Q4/2015. |
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| Intel Atom (108) | Family | AMD R (6) |
| Intel Atom C3000 (20) | CPU group | AMD RX 1st Gen. (6) |
| 5 | Generation | 1 |
| Denverton | Architecture | Merlin Falcon (Excavator) |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Atom C3508 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Atom C3508 is 1.60 GHz while the AMD RX-421BD has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD RX-421BD is at 2.10 GHz (3.40 GHz). |
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| Intel Atom C3508 | Characteristic | AMD RX-421BD |
| 4 | Cores | 4 |
| 4 | Threads | 4 |
| normal | Core architecture | normal |
| No | Hyperthreading | No |
| No | Overclocking ? | No |
| 1.60 GHz | Frequency | 2.10 GHz |
| -- | Turbo Frequency (1 Core) | 3.40 GHz |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe Intel Atom C3508 or AMD RX-421BD has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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| no iGPU | GPU | AMD Radeon R7 - 512 (Merlin Falcon) |
| GPU frequency | 0.80 GHz | |
| -- | GPU (Turbo) | -- |
| -- | GPU Generation | 3 |
| Technology | 28 | |
| Max. displays | 3 | |
| -- | Compute units | 8 |
| -- | Shader | 512 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 2 GB |
| -- | DirectX Version | 12 |
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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| no iGPU | GPU | AMD Radeon R7 - 512 (Merlin Falcon) |
| No | Codec h265 / HEVC (8 bit) | Decode |
| No | Codec h265 / HEVC (10 bit) | No |
| No | Codec h264 | Decode / Encode |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| No | Codec AVC | No |
| No | Codec VC-1 | No |
| No | Codec JPEG | Decode |
Memory & PCIeThe Intel Atom C3508 can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 29.9 GB/s. The AMD RX-421BD supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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| Intel Atom C3508 | Characteristic | AMD RX-421BD |
| DDR4-1866 | Memory | DDR4-2400, DDR3-2133 |
| 256 GB | Max. Memory | |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 29.9 GB/s | Max. Bandwidth | 38.4 GB/s |
| Yes | ECC | Yes |
| 8.00 MB | L2 Cache | 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 thermal design power (TDP for short) of the Intel Atom C3508 is 11.5 W, while the AMD RX-421BD has a TDP of 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Atom C3508 | Characteristic | AMD RX-421BD |
| 11.5 W | TDP (PL1 / PBP) | 35 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | 12 W |
| 100 °C | Tjunction max. | 90 °C |
Technical detailsThe Intel Atom C3508 is manufactured in 14 nm and has 8.00 MB cache. The AMD RX-421BD is manufactured in 28 nm and has a 2.00 MB cache. |
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| Intel Atom C3508 | Characteristic | AMD RX-421BD |
| 14 nm | Technology | 28 nm |
| Monolithic | Chip design | Unknown |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
| BGA 1310 | Socket | FP4 |
| VT-x, VT-x EPT, VT-d | Virtualization | AMD-V, AMD-Vt |
| Yes | AES-NI | Yes |
| Windows 10, Linux | Operating systems | |
| Q3/2017 | Release date | Q4/2015 |
| 86 $ | Release price | -- |
| show more data | show more data | |
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Rate these processors
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Atom C3508
4C 4T @ 1.60 GHz |
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AMD RX-421BD
4C 4T @ 3.40 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Atom C3508
4C 4T @ 1.60 GHz |
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AMD RX-421BD
4C 4T @ 2.10 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Intel Atom C3508
4C 4T @ 1.60 GHz |
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AMD RX-421BD
4C 4T @ 3.40 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Intel Atom C3508
4C 4T @ 1.60 GHz |
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AMD RX-421BD
4C 4T @ 2.10 GHz |
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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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Intel Atom C3508
@ 0.00 GHz |
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AMD RX-421BD
AMD Radeon R7 - 512 (Merlin Falcon) @ 0.80 GHz |
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Devices using this processor |
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| Intel Atom C3508 | AMD RX-421BD |
| Unknown | Unknown |
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