Intel Core i5-3427U | Intel Core i7-1255UL | |
CPU comparisonIntel Core i5-3427U 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 i5-3427U has 2 cores with 4 threads and clocks with a maximum frequency of 2.80 GHz. Up to 32 GB of memory is supported in 2 memory channels. The Intel Core i5-3427U was released in Q2/2012. 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 i5 (331) | Family | Intel Core i7 (298) |
Intel Core i 3000U (12) | CPU group | Intel Core i 1200P/1200U (21) |
3 | Generation | 12 |
Ivy Bridge U | Architecture | Alder Lake U |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i5-3427U is a 2 core processor with a clock frequency of 1.80 GHz (2.80 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 i5-3427U | Characteristic | Intel Core i7-1255UL |
2 | Cores | 10 |
4 | Threads | 12 |
normal | Core architecture | hybrid (big.LITTLE) |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
1.80 GHz (2.80 GHz) | A-Core | 2.60 GHz (4.70 GHz) 2x Golden Cove |
-- | B-Core | 1.20 GHz (3.50 GHz) 8x Gracemont |
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 HD Graphics 4000 | GPU | Intel Iris Xe Graphics 96 (Alder Lake) |
0.35 GHz | GPU frequency | 0.35 GHz |
1.15 GHz | GPU (Turbo) | 1.25 GHz |
7 | GPU Generation | 13 |
22 nm | Technology | 10 nm |
3 | Max. displays | 4 |
16 | Compute units | 96 |
128 | Shader | 768 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
2 GB | Max. GPU Memory | 32 GB |
11.0 | 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 HD Graphics 4000 | GPU | Intel Iris Xe Graphics 96 (Alder Lake) |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
Decode / Encode | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode |
No | Codec AV1 | Decode |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Core i5-3427U supports a maximum of 32 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 i5-3427U | Characteristic | Intel Core i7-1255UL |
DDR3-1600 | Memory | DDR5-4800, DDR4-3200 |
32 GB | Max. Memory | 64 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
25.6 GB/s | Max. Bandwidth | 76.8 GB/s |
No | ECC | No |
-- | L2 Cache | 6.50 MB |
3.00 MB | L3 Cache | 12.00 MB |
2.0 | PCIe version | 4.0 |
16 | PCIe lanes | 28 |
8.0 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 i5-3427U has a TDP of 17 W, that of the Intel Core i7-1255UL is 15 W. |
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Intel Core i5-3427U | Characteristic | Intel Core i7-1255UL |
17 W | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | 55 W |
-- | TDP up | 28 W |
-- | TDP down | 12 W |
105 °C | Tjunction max. | 100 °C |
Technical detailsThe Intel Core i5-3427U has a 3.00 MB cache, while the Intel Core i7-1255UL cache has a total of 18.50 MB. |
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Intel Core i5-3427U | Characteristic | Intel Core i7-1255UL |
22 nm | Technology | 10 nm |
Monolithic | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX | ISA extensions | SSE4.1, SSE4.2, AVX2 |
BGA 1023 | Socket | BGA 1744 |
VT-x, VT-x EPT | Virtualization | VT-x, VT-x EPT, VT-d |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q2/2012 | Release date | Q3/2022 |
225 $ | Release price | -- |
show more data | show more data | |
Intel Core i5-3427U
Intel HD Graphics 4000 @ 1.15 GHz |
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Intel Core i7-1255UL
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
Intel Core i5-3427U
2C 4T @ 2.80 GHz |
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Intel Core i7-1255UL
10C 12T @ 4.70 GHz |
Intel Core i5-3427U
2C 4T @ 1.80 GHz |
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Intel Core i7-1255UL
10C 12T @ 3.30 GHz |
Intel Core i5-3427U
2C 4T @ 2.80 GHz |
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Intel Core i7-1255UL
10C 12T @ 4.70 GHz |
Intel Core i5-3427U
2C 4T @ 1.80 GHz |
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Intel Core i7-1255UL
10C 12T @ 3.30 GHz |
Intel Core i5-3427U
2C 4T @ 1.80 GHz |
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Intel Core i7-1255UL
10C 12T @ 3.30 GHz |
Devices using this processor |
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Intel Core i5-3427U | Intel Core i7-1255UL |
Unknown | Unknown |