Intel Core Ultra 5 125U vs Intel Atom C3558R
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CPU comparison with benchmarks
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| Intel Core Ultra 5 125U | Intel Atom C3558R | |
CPU comparisonIntel Core Ultra 5 125U or Intel Atom C3558R - 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 Core Ultra 5 125U has 12 cores with 14 threads and clocks with a maximum frequency of 4.30 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core Ultra 5 125U was released in Q4/2023. The Intel Atom C3558R has 4 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The Intel Atom C3558R was released in Q2/2020. |
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| Intel Core Ultra 5 (10) | Family | Intel Atom (108) |
| Intel Core Ultra 100U (7) | CPU group | Intel Atom C3000 (20) |
| 1 | Generation | 5 |
| Meteor Lake U | Architecture | Denverton |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core Ultra 5 125U has 12 CPU cores and can calculate 14 threads in parallel. The clock frequency of the Intel Core Ultra 5 125U is 1.30 GHz (4.30 GHz) while the Intel Atom C3558R has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom C3558R is at 2.40 GHz. |
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| Intel Core Ultra 5 125U | Characteristic | Intel Atom C3558R |
| 12 | Cores | 4 |
| 14 | Threads | 4 |
| hybrid (big.LITTLE) | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 1.30 GHz (4.30 GHz) 2x Redwood Cove |
A-Core | 2.40 GHz |
| 0.80 GHz (3.60 GHz) 8x Crestmont |
B-Core | -- |
| 0.70 GHz (2.10 GHz) 2x Crestmont |
C-Core | -- |
Artificial Intelligence and Machine LearningProcessors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor. |
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| Intel Core Ultra 5 125U | Characteristic | Intel Atom C3558R |
| Intel AI engine | AI hardware | -- |
| Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) | AI specifications | -- |
Internal GraphicsThe Intel Core Ultra 5 125U or Intel Atom C3558R 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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| Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| 1.85 GHz | GPU (Turbo) | -- |
| -- | GPU Generation | -- |
| 5 nm | Technology | |
| 4 | Max. displays | |
| 64 | Compute units | -- |
| 512 | Shader | -- |
| Yes | Hardware Raytracing | No |
| No | Frame Generation | No |
| 32 GB | Max. GPU Memory | -- |
| 12.2 | 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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| Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) | GPU | no iGPU |
| Decode / Encode | Codec h265 / HEVC (8 bit) | No |
| Decode / Encode | Codec h265 / HEVC (10 bit) | No |
| Decode / Encode | Codec h264 | No |
| Decode | Codec VP9 | No |
| Decode | Codec VP8 | No |
| Decode / Encode | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Intel Core Ultra 5 125U can use up to 96 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The Intel Atom C3558R supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 38.4 GB/s. |
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| Intel Core Ultra 5 125U | Characteristic | Intel Atom C3558R |
| LPDDR5X-7500, DDR5-5600 | Memory | DDR4-2400 |
| 96 GB | Max. Memory | 256 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 120.0 GB/s | Max. Bandwidth | 38.4 GB/s |
| No | ECC | Yes |
| 12.00 MB | L2 Cache | 8.00 MB |
| -- | L3 Cache | -- |
| 4.0 | PCIe version | 3.0 |
| 20 | PCIe lanes | 20 |
| 39.4 GB/s | PCIe Bandwidth | 19.7 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core Ultra 5 125U is 15 W, while the Intel Atom C3558R has a TDP of 17 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Core Ultra 5 125U | Characteristic | Intel Atom C3558R |
| 15 W | TDP (PL1 / PBP) | 17 W |
| 57 W | TDP (PL2) | -- |
| 28 W | TDP up | -- |
| 12 W | TDP down | -- |
| 110 °C | Tjunction max. | 100 °C |
Technical detailsThe Intel Core Ultra 5 125U is manufactured in 7 nm and has 12.00 MB cache. The Intel Atom C3558R is manufactured in 14 nm and has a 8.00 MB cache. |
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| Intel Core Ultra 5 125U | Characteristic | Intel Atom C3558R |
| 7 nm | Technology | 14 nm |
| Chiplet | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4.1, SSE4.2 |
| BGA 2049 | Socket | BGA 1310 |
| VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d |
| Yes | AES-NI | Yes |
| Windows 11, Linux | Operating systems | Windows 10, Linux |
| Q4/2023 | Release date | Q2/2020 |
| -- | Release price | 96 $ |
| show more data | show more data | |
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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 Core Ultra 5 125U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.85 GHz |
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Intel Atom C3558R
@ 0.00 GHz |
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Devices using this processor |
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| Intel Core Ultra 5 125U | Intel Atom C3558R |
| Unknown | Unknown |
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