Census was found to be significantly faster than Hightouch when syncing data to popular marketing tools such as Hubspot, Intercom, Braze, and Iterable, with speeds ranging from 44x to 88.6 times faster in some cases, highlighting the importance of speed for marketing use cases where timely personalization and automation are critical. The benchmarking results show that Census excels in supporting core objects and custom objects for these tools, while Hightouch performs similarly but has limitations due to API rate limits, making it less suitable for high-volume data syncing.