Intel Core i7-1255U vs HiSilicon Kirin 955
Last updated:
CPU comparison with benchmarks
|
 |
|
| Intel Core i7-1255U | HiSilicon Kirin 955 | |
CPU comparisonIntel Core i7-1255U or HiSilicon Kirin 955 - 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 i7-1255U has 10 cores with 12 threads and clocks with a maximum frequency of 4.70 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Core i7-1255U was released in Q1/2022. The HiSilicon Kirin 955 has 8 cores with 8 threads and clocks with a maximum frequency of 2.50 GHz. The CPU supports up to GB of memory in 2 memory channels. The HiSilicon Kirin 955 was released in Q2/2016. |
||
| Intel Core i7 (298) | Family | HiSilicon Kirin (29) |
| Intel Core i 1200P/1200U (21) | CPU group | HiSilicon Kirin 950 (2) |
| 12 | Generation | 4 |
| Alder Lake U | Architecture | Cortex-A72 / Cortex-A53 |
| Mobile | Segment | Mobile |
| -- | Predecessor | -- |
| Intel Core i7-1355U | Successor | -- |
|
|
||
CPU Cores and Base FrequencyThe Intel Core i7-1255U has 10 CPU cores and can calculate 12 threads in parallel. The clock frequency of the Intel Core i7-1255U is 1.70 GHz (4.70 GHz) while the HiSilicon Kirin 955 has 8 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the HiSilicon Kirin 955 is at 2.50 GHz. |
||
| Intel Core i7-1255U | Characteristic | HiSilicon Kirin 955 |
| 10 | Cores | 8 |
| 12 | Threads | 8 |
| hybrid (big.LITTLE) | Core architecture | hybrid (big.LITTLE) |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 1.70 GHz (4.70 GHz) 2x Golden Cove |
A-Core | 2.50 GHz 4x Cortex-A72 |
| 1.20 GHz (3.50 GHz) 8x Gracemont |
B-Core | 1.80 GHz 4x Cortex-A53 |
Internal GraphicsThe Intel Core i7-1255U or HiSilicon Kirin 955 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. |
||
| Intel Iris Xe Graphics 96 (Alder Lake) | GPU | ARM Mali-T880 MP4 |
| 0.35 GHz | GPU frequency | 0.90 GHz |
| 1.25 GHz | GPU (Turbo) | 0.90 GHz |
| 13 | GPU Generation | Midgard 4 |
| 10 nm | Technology | 16 nm |
| 4 | Max. displays | 2 |
| 96 | Compute units | 4 |
| 768 | Shader | 64 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| 32 GB | Max. GPU Memory | -- |
| 12.1 | DirectX Version | 11 |
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. |
||
| Intel Iris Xe Graphics 96 (Alder Lake) | GPU | ARM Mali-T880 MP4 |
| Decode / Encode | Codec h265 / HEVC (8 bit) | Decode / Encode |
| Decode / Encode | Codec h265 / HEVC (10 bit) | Decode |
| Decode / Encode | Codec h264 | Decode / Encode |
| Decode / Encode | Codec VP9 | No |
| Decode | Codec VP8 | Decode / Encode |
| Decode | Codec AV1 | No |
| Decode / Encode | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Core i7-1255U can use up to 64 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The HiSilicon Kirin 955 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to --. |
||
| Intel Core i7-1255U | Characteristic | HiSilicon Kirin 955 |
| LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200 | Memory | LPDDR4, LPDDR3 |
| 64 GB | Max. Memory | |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 83.2 GB/s | Max. Bandwidth | -- |
| No | ECC | No |
| 6.50 MB | L2 Cache | -- |
| 12.00 MB | L3 Cache | -- |
| 4.0 | PCIe version | -- |
| 28 | PCIe lanes | -- |
| 55.1 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-1255U is 15 W, while the HiSilicon Kirin 955 has a TDP of --. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
||
| Intel Core i7-1255U | Characteristic | HiSilicon Kirin 955 |
| 15 W | TDP (PL1 / PBP) | -- |
| 55 W | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| 100 °C | Tjunction max. | -- |
Technical detailsThe Intel Core i7-1255U is manufactured in 10 nm and has 18.50 MB cache. The HiSilicon Kirin 955 is manufactured in 16 nm and has a 0.00 MB cache. |
||
| Intel Core i7-1255U | Characteristic | HiSilicon Kirin 955 |
| 10 nm | Technology | 16 nm |
| Monolithic | Chip design | Chiplet |
| x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
| SSE4.1, SSE4.2, AVX2 | ISA extensions | -- |
| BGA 1744 | Socket | -- |
| VT-x, VT-x EPT, VT-d | Virtualization | None |
| Yes | AES-NI | No |
| Windows 10, Windows 11, Linux | Operating systems | Android |
| Q1/2022 | Release date | Q2/2016 |
| -- | Release price | -- |
| show more data | show more data | |
|
10C 12T @ 1.70 GHz (4.70 GHz) buy now on Amazon and save!
8C 8T @ 2.50 GHz buy now on Amazon and save!
|
||
Rate these processors
Average performance in benchmarks
⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 1 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
|
Intel Core i7-1255U
10C 12T @ 4.70 GHz |
||
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
|
|
Intel Core i7-1255U
10C 12T @ 2.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
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.
|
|
Intel Core i7-1255U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
||
|
|
HiSilicon Kirin 955
ARM Mali-T880 MP4 @ 0.90 GHz |
||
Cinebench R23 (Single-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
|
|
Intel Core i7-1255U
10C 12T @ 4.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Cinebench R23 (Multi-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
|
|
Intel Core i7-1255U
10C 12T @ 2.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
|
|
Intel Core i7-1255U
10C 12T @ 4.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
|
|
Intel Core i7-1255U
10C 12T @ 2.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
|
|
Intel Core i7-1255U
10C 12T @ 4.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Cinebench R20 (Multi-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
|
|
Intel Core i7-1255U
10C 12T @ 2.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
|
|
Intel Core i7-1255U
10C 12T @ 2.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
|
|
Intel Core i7-1255U
10C 12T @ 4.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
|
|
Intel Core i7-1255U
10C 12T @ 2.70 GHz |
||
|
|
HiSilicon Kirin 955
8C 8T @ 2.50 GHz |
||
Devices using this processor |
|
| Intel Core i7-1255U | HiSilicon Kirin 955 |
| Unknown | Unknown |
Popular comparisons containing this CPUs
back to index
