HiSilicon Kirin 620 vs Intel Core i7-3920XM
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CPU comparison with benchmarks
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| HiSilicon Kirin 620 | Intel Core i7-3920XM | |
CPU comparisonHiSilicon Kirin 620 or Intel Core i7-3920XM - 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 HiSilicon Kirin 620 has 4 cores with 4 threads and clocks with a maximum frequency of 1.20 GHz. Up to GB of memory is supported in 1 memory channels. The HiSilicon Kirin 620 was released in Q1/2015. The Intel Core i7-3920XM has 4 cores with 8 threads and clocks with a maximum frequency of 3.80 GHz. The CPU supports up to 32 GB of memory in 2 memory channels. The Intel Core i7-3920XM was released in Q2/2012. |
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| HiSilicon Kirin (29) | Family | Intel Core i7 Extreme Edition (24) |
| HiSilicon Kirin 620 (1) | CPU group | Intel Core i 3000M (29) |
| 3 | Generation | 3 |
| Cortex-A53 | Architecture | Ivy Bridge H |
| Mobile | Segment | Mobile |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe HiSilicon Kirin 620 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the HiSilicon Kirin 620 is 1.20 GHz while the Intel Core i7-3920XM has 4 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the Intel Core i7-3920XM is at 2.90 GHz (3.80 GHz). |
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| HiSilicon Kirin 620 | Characteristic | Intel Core i7-3920XM |
| 4 | Cores | 4 |
| 4 | Threads | 8 |
| normal | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | Yes |
| 1.20 GHz | Frequency | 2.90 GHz |
| -- | Turbo Frequency (1 Core) | 3.80 GHz |
| -- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe HiSilicon Kirin 620 or Intel Core i7-3920XM 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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| ARM Mali-450 MP4 | GPU | Intel HD Graphics 4000 |
| 0.53 GHz | GPU frequency | 0.65 GHz |
| 0.53 GHz | GPU (Turbo) | 1.30 GHz |
| Utgard | GPU Generation | 7 |
| 28nm | Technology | 22 nm |
| 1 | Max. displays | 3 |
| 4 | Compute units | 16 |
| 64 | Shader | 128 |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | 2 GB |
| 0 | DirectX Version | 11.0 |
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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| ARM Mali-450 MP4 | GPU | Intel HD Graphics 4000 |
| No | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| No | Codec h264 | Decode / Encode |
| No | Codec VP9 | No |
| No | Codec VP8 | No |
| No | Codec AV1 | No |
| No | Codec AVC | Decode / Encode |
| No | Codec VC-1 | Decode |
| No | Codec JPEG | Decode |
Memory & PCIeThe HiSilicon Kirin 620 can use up to GB of memory in 1 memory channels. The maximum memory bandwidth is --. The Intel Core i7-3920XM supports up to 32 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 25.6 GB/s. |
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| HiSilicon Kirin 620 | Characteristic | Intel Core i7-3920XM |
| LPDDR3 | Memory | DDR3L-1333, DDR3L-1600, DDR3-1333, DDR3-1600 |
| Max. Memory | 32 GB | |
| 1 (Single Channel) | Memory channels | 2 (Dual Channel) |
| -- | Max. Bandwidth | 25.6 GB/s |
| No | ECC | No |
| -- | L2 Cache | -- |
| -- | L3 Cache | 8.00 MB |
| -- | PCIe version | 3.0 |
| -- | PCIe lanes | 16 |
| -- | PCIe Bandwidth | 15.8 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the HiSilicon Kirin 620 is --, while the Intel Core i7-3920XM has a TDP of 55 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| HiSilicon Kirin 620 | Characteristic | Intel Core i7-3920XM |
| -- | TDP (PL1 / PBP) | 55 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | 105 °C |
Technical detailsThe HiSilicon Kirin 620 is manufactured in 28 nm and has 0.00 MB cache. The Intel Core i7-3920XM is manufactured in 22 nm and has a 8.00 MB cache. |
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| HiSilicon Kirin 620 | Characteristic | Intel Core i7-3920XM |
| 28 nm | Technology | 22 nm |
| Chiplet | Chip design | Monolithic |
| Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| -- | ISA extensions | SSE4.1, SSE4.2, AVX |
| -- | Socket | PGA 988 |
| None | Virtualization | VT-x, VT-x EPT |
| No | AES-NI | Yes |
| Android | Operating systems | Windows 10, Linux |
| Q1/2015 | Release date | Q2/2012 |
| -- | Release price | -- |
| show more data | show more data | |
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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.
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HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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Intel Core i7-3920XM
4C 8T @ 3.80 GHz |
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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.
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HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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Intel Core i7-3920XM
4C 8T @ 2.90 GHz |
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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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HiSilicon Kirin 620
ARM Mali-450 MP4 @ 0.53 GHz |
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Intel Core i7-3920XM
Intel HD Graphics 4000 @ 1.30 GHz |
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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.
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HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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Intel Core i7-3920XM
4C 8T @ 3.80 GHz |
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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.
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HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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Intel Core i7-3920XM
4C 8T @ 2.90 GHz |
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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.
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HiSilicon Kirin 620
4C 4T @ 1.20 GHz |
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Intel Core i7-3920XM
4C 8T @ 2.90 GHz |
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Devices using this processor |
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| HiSilicon Kirin 620 | Intel Core i7-3920XM |
| Unknown | Unknown |
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