Ddr42660 is not far from 3200. Only when the motherboard and CPU support 3200 frequency will it be obvious. However, the default frequency of motherboard and CPU is only 42660 frequency, which can be improved only by setting overclocking.
DDR4 refers to the difference of working frequency. The data transmission speed on the memory module is one of the most important parameters of the memory. The larger the number before MHz, the stronger the memory performance. The main difference between DDR4 2400mhz and DDR4 2666mhz is the frequency. The former has an equivalent frequency of 2400mhz and the latter has an equivalent frequency of 2666mhz. The latter has higher data transmission efficiency.
The higher the main frequency of memory, the stronger the memory performance, but the gap is not particularly obvious in actual use; DDR4 2400 and 2666 are the same truck, but the higher the frequency, the more data can be carried in theory. However, the frequency difference between DDR4 2400 and 2666 is 266MHz, and the data carrying capacity is not very different. （ddr42660He3200ChaJuDaMa）