Last month PCMag conducted a series of tests that showed how well the Intel-based iPhone XS performed compared to last year’s iPhone X along with several Qualcomm-modem-equipped competitors, and now the publication has published a new set of results demonstrating how the LTE performance of the iPhone XS significantly outpaces that of the iPhone XR. PCMag once again worked with Cellular Insights and Rohde & Schwarz to conduct the tests, which…