CPU comparison with benchmarks |
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CPU lineage |
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AMD RX-421BD or AMD RX-421BD – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The AMD RX-421BD features 4 processor cores and has the capability to manage 4 threads concurrently. It was released in Q4/2015 and belongs to the 1 generation of the AMD R series. To use the AMD RX-421BD, you'll need a motherboard with a FP4 socket. The AMD Ryzen 7 PRO 5845 features 8 processor cores and has the capability to manage 16 threads concurrently. It was released in Q3/2022 and belongs to the 4 generation of the AMD Ryzen 5 series. To use the AMD Ryzen 7 PRO 5845, you'll need a motherboard with a AM4 (PGA 1331) socket. |
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1 | Generation | 4 |
AMD RX-421BD | Name | AMD Ryzen 7 PRO 5845 |
AMD R | Family | AMD Ryzen 5 |
Mobile | Segment | Mobile |
AMD RX 1st Gen. | Group | AMD Ryzen 5000U |
CPU Cores and Base Frequency |
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The AMD RX-421BD has 4 CPU cores and can calculate 4 threads in parallel.
The clock frequency of the AMD RX-421BD is 2.1 GHz and turbo frequency for one core is 3.4 GHz. The AMD Ryzen 7 PRO 5845 has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 PRO 5845 is 3.4 GHz and turbo frequency for one core is 4.6 GHz. The number of CPU cores greatly affects the speed of the processor and is an important performance indicator. |
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4 | Threads | 16 |
No | Hyperthreading | Yes |
2.1 GHz | Frequency | 3.4 GHz |
4 | CPU Cores | 8 |
normal | Core architecture | normal |
3.4 GHz | Turbo Frequency (1 core) | 4.6 GHz |
4x | Cores | 8x |
No | Overclocking | Yes |
Internal Graphics |
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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. The AMD Ryzen 7 PRO 5845 does not have integrated graphics. |
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AMD Radeon R7 - 512 (Merlin Falcon) | GPU name | |
512 | Shaders | -- |
28 nm | Technology | -- |
0.8 GHz | GPU frequency | -- |
8 | Execution units | -- |
-- | GPU (Turbo) | -- |
12 | Direct X | -- |
3 | Generation | -- |
2.0 GB | Max. GPU Memory | 0 bytes |
2015 | Release date | -- |
-- | Max. displays | -- |
Artificial Intelligence and Machine Learning |
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-- | AI hardware | -- |
-- | AI specifications | -- |
Hardware codec support |
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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.
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Decode | JPEG | -- |
No | AV1 | -- |
No | VC-1 | -- |
No | h265 / HEVC (10 bit) | -- |
Decode | h265 / HEVC (8 bit) | -- |
Decode / Encode | h264 | -- |
No | VP8 | -- |
No | AVC | -- |
No | VP9 | -- |
Memory & PCIe |
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The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 51.2 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
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Yes | AES-NI | Yes |
Yes | ECC | No |
pci | PCIe | pci |
DDR3-2133, DDR4-2400 | Memory type | LPDDR4-3200 |
2 | Memory channels | 2 |
0 bytes | Max. Memory | 64.0 GB |
-- | Bandwidth | 51.2 GB/s |
Thermal Management |
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The processor has a thermal design power (TDP) of 35 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself. The processor has a thermal design power (TDP) of 65 W watts. |
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90 °C | Tjunction max | 95 °C |
12 W | TDP down | None |
35 W | TDP (PL1 / PBP) | 65 W |
Technical details |
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The AMD RX-421BD is manufactured using a 28 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming. The AMD Ryzen 7 PRO 5845 is manufactured using a 7 nm process. In total, this processor boasts a generous 32.0 MB cache. |
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-- | Release price | -- |
28 nm | Technology | 7 nm |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
Technical data sheet | Documents | Technical data sheet |
2.0 MB | L2-Cache | 4.0 MB |
0 bytes | L3-Cache | 32.0 MB |
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 | ISA extensions | SSE4a, SSE4.1, SSE4.2, FMA3, AVX2 |
AMD-V, AMD-Vt | Virtualization | AMD-V, SVM |
RE421BAAY43KA | Part Number | 100-000000832 |
-- | Chip design | Chiplet |
FP4 | Socket | AM4 (PGA 1331) |
Merlin Falcon (Excavator) | Architecture | Cezanne (Zen 3) |
Q4/2015 | Release date | Q3/2022 |
Operating systems | Windows 10, Linux, Windows 11 | |