Intel Atom x6425E | Intel Core Ultra 7 155H | |
CPU comparisonIntel Atom x6425E or Intel Core Ultra 7 155H - 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 x6425E has 4 cores with 4 threads and clocks with a maximum frequency of 3.00 GHz. Up to 32 GB of memory is supported in 4 memory channels. The Intel Atom x6425E was released in Q1/2021. The Intel Core Ultra 7 155H has 16 cores with 22 threads and clocks with a maximum frequency of 4.80 GHz. The CPU supports up to 96 GB of memory in 2 memory channels. The Intel Core Ultra 7 155H was released in Q4/2023. |
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Intel Atom (108) | Family | Intel Core Ultra 7 (10) |
Intel Atom x6000 (10) | CPU group | Intel Core Ultra 100H (5) |
6 | Generation | 1 |
Elkhart Lake | Architecture | Meteor Lake H |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
Intel Atom x7425E | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Atom x6425E is a 4 core processor with a clock frequency of 2.00 GHz (3.00 GHz). The Intel Core Ultra 7 155H has 16 CPU cores with a clock frequency of 1.40 GHz (4.80 GHz). |
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Intel Atom x6425E | Characteristic | Intel Core Ultra 7 155H |
4 | Cores | 16 |
4 | Threads | 22 |
normal | Core architecture | hybrid (big.LITTLE) |
No | Hyperthreading | Yes |
No | Overclocking ? | No |
2.00 GHz (3.00 GHz) | A-Core | 1.40 GHz (4.80 GHz) 6x Redwood Cove |
-- | B-Core | 0.90 GHz (3.80 GHz) 8x Crestmont |
-- | C-Core | 0.70 GHz (2.50 GHz) 2x Crestmont |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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Intel Atom x6425E | Characteristic | Intel Core Ultra 7 155H |
-- | AI hardware | Intel® AI Boost |
-- | AI specifications | Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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Intel UHD Graphics 10th Gen (32 EU) | GPU | Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) |
0.50 GHz | GPU frequency | 0.60 GHz |
0.75 GHz | GPU (Turbo) | 2.25 GHz |
11 | GPU Generation | -- |
14 nm | Technology | 5 nm |
3 | Max. displays | 4 |
32 | Compute units | 128 |
256 | Shader | 1024 |
No | Hardware Raytracing | Yes |
No | Frame Generation | No |
64 GB | Max. GPU Memory | 32 GB |
12 | DirectX Version | 12.2 |
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 UHD Graphics 10th Gen (32 EU) | GPU | Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) |
Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
Decode / Encode | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
Decode / Encode | Codec VP9 | Decode |
Decode / Encode | Codec VP8 | Decode |
Decode | Codec AV1 | Decode / Encode |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Atom x6425E supports a maximum of 32 GB of memory in 4 memory channels. The Intel Core Ultra 7 155H can connect up to 96 GB of memory in 2 memory channels. |
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Intel Atom x6425E | Characteristic | Intel Core Ultra 7 155H |
LPDDR4X-3733, DDR4-3200 | Memory | LPDDR5X-7500, DDR5-5600 |
32 GB | Max. Memory | 96 GB |
4 (Quad Channel) | Memory channels | 2 (Dual Channel) |
119.2 GB/s | Max. Bandwidth | 120.0 GB/s |
Yes | ECC | No |
1.50 MB | L2 Cache | 18.00 MB |
-- | L3 Cache | 24.00 MB |
3.0 | PCIe version | 5.0 |
8 | PCIe lanes | 20 |
7.9 GB/s | PCIe Bandwidth | 78.8 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Atom x6425E has a TDP of 12 W, that of the Intel Core Ultra 7 155H is 28 W. |
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Intel Atom x6425E | Characteristic | Intel Core Ultra 7 155H |
12 W | TDP (PL1 / PBP) | 28 W |
-- | TDP (PL2) | 115 W |
-- | TDP up | 65 W |
-- | TDP down | 20 W |
105 °C | Tjunction max. | 110 °C |
Technical detailsThe Intel Atom x6425E has a 1.50 MB cache, while the Intel Core Ultra 7 155H cache has a total of 42.00 MB. |
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Intel Atom x6425E | Characteristic | Intel Core Ultra 7 155H |
10 nm | Technology | 7 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2 | ISA extensions | SSE4.1, SSE4.2, AVX2 |
BGA 1493 | Socket | BGA 2049 |
VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d |
Yes | AES-NI | Yes |
Operating systems | Windows 11, Linux | |
Q1/2021 | Release date | Q4/2023 |
56 $ | Release price | -- |
show more data | show more data | |
Intel Atom x6425E
4C 4T @ 3.00 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz |
Intel Atom x6425E
4C 4T @ 2.70 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz |
Intel Atom x6425E
4C 4T @ 3.00 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz |
Intel Atom x6425E
4C 4T @ 2.70 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz |
Intel Atom x6425E
Intel UHD Graphics 10th Gen (32 EU) @ 0.75 GHz |
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Intel Core Ultra 7 155H
Intel Iris Xe 8 Core Graphics 128 EUs (Meteor Lake) @ 2.25 GHz |
Intel Atom x6425E
4C 4T @ 2.70 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz |
Intel Atom x6425E
4C 4T @ 3.00 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz |
Intel Atom x6425E
4C 4T @ 2.70 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz |
Intel Atom x6425E
4C 4T @ 3.00 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz |
Intel Atom x6425E
4C 4T @ 2.70 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.20 GHz |
Intel Atom x6425E
2.00 GHz |
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Intel Core Ultra 7 155H
16,825 CB R23 MC @ 75 W |
Devices using this processor |
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Intel Atom x6425E | Intel Core Ultra 7 155H |
Unknown | ASUS Zenbook Duo (2024) UX8406 |