The Core i5 configuration is hundreds of dollars cheaper than the Core i7 option and yet it performs faster in multi-threaded workloads. We highly recommend skipping over the i7 upgrade in favor of other options such as Sure View, WAN, or the brighter Outdoor Mode backlight.
https://www.notebookcheck.net/When-cheaper-is-faster-Core-i5-HP-EliteBook-x360-1030-G3-convertible-outperforms-the-Core-i7-SKU-by-10-percent.397181.0.html