CPU comparison with benchmarks
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-VS- |
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CPU lineage |
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 Apple M2 (8-GPU) features 8 processor cores and has the capability to manage 8 threads concurrently. It was released in Q2/2022 and belongs to the 2 generation of the Apple M series series.
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| AMD RX 1st Gen. |
Group |
Apple M2 |
| 1 |
Generation |
2 |
| Mobile |
Segment |
Mobile |
| AMD RX-421BD |
Name |
Apple M2 (8-GPU) |
| AMD R |
Family |
Apple M series |
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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 2.1 GHz and turbo frequency for one core is 3.4 GHz. The Apple M2 (8-GPU) has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the A-Core is 3.5 GHz. The number of CPU cores greatly affects the speed of the processor and is an important performance indicator. Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
|
| 4 |
Threads |
8 |
| 4x |
Cores |
None |
| None |
None |
2.8 GHz |
| 4 |
CPU Cores |
8 |
| normal |
Core architecture |
hybrid (big.LITTLE) |
| None |
None |
4x Avalanche |
| No |
Hyperthreading |
No |
| None |
None |
3.5 GHz |
| No |
Overclocking |
No |
| None |
None |
4x Blizzard |
| 3.4 GHz |
Turbo Frequency (1 core) |
None |
| 2.1 GHz |
Frequency |
None |
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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. The Apple M2 (8-GPU) has integrated graphics, called iGPU for short. Specifically, the Apple M2 (8-GPU) uses the Apple M2 (8 Core), which has 1024 texture shaders and 128 execution units.
|
| 512 |
Shaders |
1024 |
| 2015 |
Release date |
Q2/2022 |
| 28 nm |
Technology |
5 nm |
| 12 |
Direct X |
-- |
| 2.0 GB |
Max. GPU Memory |
24.0 GB |
| -- |
Max. displays |
-- |
| 8 |
Execution units |
128 |
| 0.8 GHz |
GPU frequency |
1.4 GHz |
| 3 |
Generation |
2 |
| -- |
GPU (Turbo) |
-- |
| AMD Radeon R7 - 512 (Merlin Falcon) |
GPU name |
Apple M2 (8 Core) |
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| |
Artificial Intelligence and Machine Learning |
| -- |
AI specifications |
16 Neural cores @ 15.8 TOPS |
| -- |
AI hardware |
Apple Neural Engine |
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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.
|
| No |
VP8 |
Decode |
| No |
VC-1 |
Decode |
| Decode |
JPEG |
Decode / Encode |
| No |
AV1 |
No |
| Decode |
h265 / HEVC (8 bit) |
Decode / Encode |
| No |
AVC |
Decode |
| Decode / Encode |
h264 |
Decode / Encode |
| No |
VP9 |
Decode / Encode |
| No |
h265 / HEVC (10 bit) |
Decode / Encode |
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Memory & PCIe |
The processor supports a maximum memory capacity of 24.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 102.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
|
| pci |
PCIe |
pci |
| Yes |
AES-NI |
Yes |
| DDR3-2133, DDR4-2400 |
Memory type |
LPDDR5-6400 |
| Yes |
ECC |
No |
| 0 bytes |
Max. Memory |
24.0 GB |
| 2 |
Memory channels |
2 |
| -- |
Bandwidth |
102.4 GB/s |
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Thermal Management |
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 22 W watts.
|
| 12 W |
TDP down |
10 W |
| 35 W |
TDP (PL1 / PBP) |
22 W |
| 90 °C |
Tjunction max |
100 °C |
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Technical details |
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 Apple M2 (8-GPU) is manufactured using a 5 nm process.
|
| Q4/2015 |
Release date |
Q2/2022 |
| AMD-V, AMD-Vt |
Virtualization |
Apple Virtualization Framework |
| SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 |
ISA extensions |
Rosetta 2 x86-Emulation |
| 28 nm |
Technology |
5 nm |
| -- |
Chip design |
Chiplet |
| -- |
Release price |
-- |
| Merlin Falcon (Excavator) |
Architecture |
M2 |
| 0 bytes |
L3-Cache |
0 bytes |
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Operating systems |
macOS, iPadOS |
| Technical data sheet |
Documents |
Technical data sheet |
| x86-64 (64 bit) |
Instruction set (ISA) |
ARMv8-A64 (64 bit) |
| RE421BAAY43KA |
Part Number |
-- |
| FP4 |
Socket |
|
| 2.0 MB |
L2-Cache |
20.0 MB |
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