The China-French Ocean satellite carries the world's first radar dedicated to the detection of two-dimensional wave spectra, the SWIM (Surface waves investigation and monitoring) spectrometer. The radar can scan the ocean surface by rotating six different beams to obtain two-dimensional wave spectrum information and set the resolution of the two-dimensional spectrum along the orbit by controlling the rotation speed of the antenna. China and France will release level 2 spectrometer products with the same software processing, but due to the different locations of receiving stations between China and France and the input of meteorological auxiliary data sources during ground data processing are not completely consistent, there will be certain differences in the level 2 products released by both sides, which brings certain uncertainties to the application of spectrometer products. To clarify the differences between spectrometer products of the same version obtained from different data download sources, in this paper the latest version of secondary data released by relevant Chinese and French units in March 2024 is selected. The time-matching windows of 5s, 3s, 1s, and 0.1s are adopted to obtain the consistent comparison results of the three main wave parameters of the two-dimensional wave spectrum under different matching times. The results show that the significant wave height is relatively stable, and the accuracy remains almost constant under the spatial difference of the maximum half box. With the increase of matching time, the difference between peak wavelength and wave direction becomes larger and larger. When the matching time is 5s, their difference is about 21.5m and 46.5° respectively, while the matching time is 0.1s, the difference is very small, that is, the product difference caused by the difference of meteorological auxiliary data sources input from different ground processing systems in China and France can be ignored.