The main differences between 7nm and 10nm:
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1, grid length is not the same. The gate width of a CMOS field-effect transistor formed on the CPU is also known as the gate length. The 7nm process allows the CPU and GPU to integrate more transistors, so that the processor has more functions and higher performance.
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2. Different power consumption. With 7nm technology and 10nm technology, 7nm will be smaller with the same number of transistors plugged in. The large volume of 10nm will cause the capacitance of the original to be larger because of the process problem, and the voltage required is higher than that of 7nm, resulting in higher overall power consumption.
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Performance:
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The chip is composed of transistors, the smaller the process, the more transistors in the same area of the chip, the stronger the natural performance. The performance of 7nm is naturally stronger than 10nm.
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Take Huawei Kirin 980 as the Kirin 970 for example, where Kirin 980 is a chip with 7nm process and Kirin 970 is a chip with 10nm process.
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First look at the number of transistors, Kirin 980 is 6.9 billion transistors, Kirin 970 is 5.5 billion transistors, an increase of about 25.5%. In terms of performance, it is far from as simple as 25.5%, because it not only involves the number of transistors, but also involves the upgrade of IP cores such as CPU, GPU, and NPU.
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In terms of specific values, like the CPU run score, Kirin 980 is about 50% higher, while in the GPU part, it is twice higher, and the NPU run score is more than twice higher.