iPhone X suffers in 2018 from the same problems that we saw in the iPhone 7, unfortunately, the phones having different performances depending on the model that we buy from the company Apple Lossless Audio CODEC (ALAC),. In the middle of these problems, separate from the different storage spaces used by Apple, are the Qualcomm or Intel modems, which those from Cupertino use for the released iPhone X models.
iPhone X sold with Qualcomm Snapdragon X16 modems have better 4G LTE speeds than those sold with Intel XMM7480 modems, as happened last year. At that time, Apple used other models of modems from these two manufacturers, but the differences in 4G LTE speeds existed without discrimination, so we are only talking about a re-editing of the situation that occurred last year.
iPhone X was tested in both models with Qualcomm and Intel modems by a specialized company from the USA, using band 4 of 4G LTE because it is the most used in the USA, Canada and South America. Based on the tests, the iPhone X models with the Intel modem started to have worse 4G LTE speeds than the Qualcomm ones when the signal strength dropped slightly, things getting worse with the signal.
iPhone X has different performances depending on the model purchased
iPhone X with Intel modem starts to have substantially lower 4G LTE speeds than models with Qualcomm modem even when the signal drops very little, and this is a big problem. You can see in the images below how a small decrease in signal strength generates a decrease of several tens of Mbits in the internet browsing speed for iPhone X, but only for models with Intel modem.
iPhone X with Qualcomm modem has constant speed even in the case of a slight decrease in signal strength, and this is valid up to a certain point, after which it doesn't really matter anymore. When it comes to very weak signal, both iPhone X models have equally bad speeds, but that was to be expected, the biggest problem appearing when the signal drops very little and the Intel modem shows its weaknesses.
The iPhone X sold in Europe only comes with an Intel modem, which is used in all GSM models, while the CDMA models in many countries have an integrated Qualcomm modem. Unfortunately, things will not change next year either because Apple is at war with Qualcomm, and apart from internet speed, the quality of calls made on the iPhone X is also affected, but not only that, but for this we currently have no studies , although we will surely have.
If in the case of storage space, where those with 64 GB are much slower than those with 256 GB, there is a logic based on price, with modems there is no logic, because they are used in both 64 GB and 256 GB models .
