Intel Core Ultra 7 155UL vs Intel Core i7-1255UL
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CPU comparison with benchmarks
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| Intel Core Ultra 7 155UL | Intel Core i7-1255UL | |
CPU comparisonIntel Core Ultra 7 155UL or Intel Core i7-1255UL - 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 7 155UL has 12 cores with 14 threads and clocks with a maximum frequency of 4.80 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core Ultra 7 155UL was released in Q2/2024. The Intel Core i7-1255UL has 10 cores with 12 threads and clocks with a maximum frequency of 4.70 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i7-1255UL was released in Q3/2022. |
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| Intel Core Ultra 7 (10) | Family | Intel Core i7 (298) |
| Intel Core Ultra 100UL (5) | CPU group | Intel Core i 1200P/1200U (21) |
| 1 | Generation | 12 |
| Meteor Lake PS | Architecture | Alder Lake U |
| Desktop / Server | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core Ultra 7 155UL is a 12 core processor with a clock frequency of 1.70 GHz (4.80 GHz). The Intel Core i7-1255UL has 10 CPU cores with a clock frequency of 2.60 GHz (4.70 GHz). |
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| Intel Core Ultra 7 155UL | Characteristic | Intel Core i7-1255UL |
| 12 | Cores | 10 |
| 14 | Threads | 12 |
| hybrid (big.LITTLE) | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | Yes |
| No | Overclocking ? | No |
| 1.70 GHz (4.80 GHz) 2x Redwood Cove |
A-Core | 2.60 GHz (4.70 GHz) 2x Golden Cove |
| 1.20 GHz (3.80 GHz) 8x Crestmont |
B-Core | 1.20 GHz (3.50 GHz) 8x Gracemont |
| 0.70 GHz (2.10 GHz) 2x Crestmont |
C-Core | -- |
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 Core Ultra 7 155UL | Characteristic | Intel Core i7-1255UL |
| Intel® AI Boost | AI hardware | -- |
| Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT) | AI specifications | -- |
| -- | 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 Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) | GPU | Intel Iris Xe Graphics 96 (Alder Lake) |
| 0.60 GHz | GPU frequency | 0.35 GHz |
| 1.95 GHz | GPU (Turbo) | 1.25 GHz |
| -- | GPU Generation | 13 |
| 5 nm | Technology | 10 nm |
| 4 | Max. displays | 4 |
| 64 | Compute units | 96 |
| 512 | Shader | 768 |
| Yes | Hardware Raytracing | No |
| No | Frame Generation | No |
| 32 GB | Max. GPU Memory | 32 GB |
| 12.2 | DirectX Version | 12.1 |
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 | Intel Iris Xe Graphics 96 (Alder 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 | Codec VP9 | Decode / Encode |
| Decode | Codec VP8 | Decode |
| Decode / Encode | Codec AV1 | Decode |
| Decode / Encode | Codec AVC | Decode / Encode |
| Decode | Codec VC-1 | Decode |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Core Ultra 7 155UL supports a maximum of 96 GB of memory in 2 memory channels. The Intel Core i7-1255UL can connect up to 64 GB of memory in 2 memory channels. |
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| Intel Core Ultra 7 155UL | Characteristic | Intel Core i7-1255UL |
| DDR5-5600 | Memory | DDR5-4800, DDR4-3200 |
| 96 GB | Max. Memory | 64 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 89.6 GB/s | Max. Bandwidth | 76.8 GB/s |
| No | ECC | No |
| 12.00 MB | L2 Cache | 6.50 MB |
| -- | L3 Cache | 12.00 MB |
| 4.0 | PCIe version | 4.0 |
| 20 | PCIe lanes | 28 |
| 39.4 GB/s | PCIe Bandwidth | 55.1 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core Ultra 7 155UL has a TDP of 15 W, that of the Intel Core i7-1255UL is 15 W. |
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| Intel Core Ultra 7 155UL | Characteristic | Intel Core i7-1255UL |
| 15 W | TDP (PL1 / PBP) | 15 W |
| 57 W | TDP (PL2) | 55 W |
| 28 W | TDP up | 28 W |
| 12 W | TDP down | 12 W |
| 105 °C | Tjunction max. | 100 °C |
Technical detailsThe Intel Core Ultra 7 155UL has a 12.00 MB cache, while the Intel Core i7-1255UL cache has a total of 18.50 MB. |
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| Intel Core Ultra 7 155UL | Characteristic | Intel Core i7-1255UL |
| 7 nm | Technology | 10 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, AVX2 |
| LGA 1851 | Socket | BGA 1744 |
| 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, Windows 11, Linux |
| Q2/2024 | Release date | Q3/2022 |
| -- | Release price | -- |
| 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 7 155UL
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.95 GHz |
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Intel Core i7-1255UL
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
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Devices using this processor |
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| Intel Core Ultra 7 155UL | Intel Core i7-1255UL |
| Unknown | Unknown |
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