AMD RX-421BD Benchmark, Test and specs
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The AMD RX-421BD has 4 cores with 4 threads and is based on the 1. gen of the AMD R series. The processor uses a mainboard with the FP4 socket and was released in Q4/2015.
| Name: | AMD RX-421BD |
|---|---|
| Family: | AMD R (6) |
| CPU group: | AMD RX 1st Gen. (6) |
| Architecture: | Merlin Falcon (Excavator) |
| Segment: | Mobile |
| Generation: | 1 |
| Predecessor: | -- |
| Successor: | -- |
CPU Cores and Base Frequency
The AMD RX-421BD has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD RX-421BD is 2.10 GHz (3.40 GHz). The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
| CPU Cores / Threads: | 4 / 4 |
|---|---|
| Core architecture: | normal |
| Cores: | 4x |
| Hyperthreading / SMT: | No |
|---|---|
| Overclocking: | No |
| Frequency: | 2.10 GHz |
| Turbo Frequency (1 Core): | 3.40 GHz |
| Turbo Frequency (4 Cores): | -- |
Internal Graphics
The AMD RX-421BD has integrated graphics, called iGPU for short. Specifically, the AMD RX-421BD uses the AMD Radeon R7 - 512 (Merlin Falcon), which has 512 texture shaders and 8 execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
| GPU name: | AMD Radeon R7 - 512 (Merlin Falcon) |
|---|---|
| GPU frequency: | 0.80 GHz |
| GPU (Turbo): | No turbo |
| Compute units: | 8 |
| Shader: | 512 |
| Hardware Raytracing: | No |
| Release date: | 2015 |
| Max. displays: | 3 |
|---|---|
| Generation: | 3 |
| Direct X: | 12 |
| Technology: | 28 |
| Max. GPU Memory: | 2 GB |
| Frame Generation: | No |
Hardware codec support
A 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.
| h265 / HEVC (8 bit): | Decode |
|---|---|
| h265 / HEVC (10 bit): | No |
| h264: | Decode / Encode |
| VP8: | No |
| VP9: | No |
| AV1: | No |
|---|---|
| AVC: | No |
| VC-1: | No |
| JPEG: | Decode |
Memory & PCIeThe processor can use up to memory in 2 (Dual Channel) memory channels. The maximum memory bandwidth is 38.4 GB/s. The memory type as well as the amount of memory can greatly affect the speed of the system. |
|
| Memory type: | Memory bandwidth: |
|---|---|
| DDR4-2400 DDR3-2133 | 38.4 GB/s 34.2 GB/s |
| Max. Memory: | |
| Memory channels: | 2 (Dual Channel) |
| ECC: | Yes |
| PCIe: | 3.0 x 12 |
| PCIe Bandwidth: | 11.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the processor is 35 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. The TDP usually gives a rough idea of the actual power consumption of the CPU. |
|
|---|---|
| TDP (PL1 / PBP): | 35 W |
| TDP (PL2): | -- |
| TDP up: | -- |
| TDP down: | 12 W |
| Tjunction max.: | 90 °C |
Technical details
The AMD RX-421BD is made in 28 nm. The smaller the manufacturing process of a CPU, the more modern and energy-efficient it is. Overall, the processor has 2.00 MB cache. A large cache can greatly speed up the processor's speed in some cases such as games.
| Technology: | 28 nm |
|---|---|
| Chip design: | |
| Socket: | FP4 |
| L2-Cache: | 2.00 MB |
| L3-Cache: | -- |
| AES-NI: | Yes |
| Operating systems: |
| Virtualization: | AMD-V, AMD-Vt |
|---|---|
| Instruction set (ISA): | x86-64 (64 bit) |
| ISA extensions: | SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
| Release date: | Q4/2015 |
| Release price: | -- |
| Part Number: | RE421BAAY43KA |
| Documents: | -- |
4C 4T @ 2.10 GHz (3.40 GHz)
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Benchmark results
The benchmark results for the AMD RX-421BD have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.
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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