Over the last couple of weeks we have had a few stories suggesting that Verizon's LTE radio issues with some of their newer devices, and even the delay of the Droid Bionic, were caused by compatibility issues with the NVIDIA Tegra 2 chips. NVIDIA has stepped forward to "set the record straight". The renown graphics chip maker emphatically denies that their chip has anything to do with the LTE issues that VZW has been experiencing, and they wanted to make it clear that the rumors should stop. Here is a quote directly from their representatives,
Tegra has no compatibility issues with LTE at all. The Tegra-powered Samsung Galaxy Tab 10.1 4G LTE tablet runs on Verizon’s LTE network and is a perfect example of Tegra working fine w/ 4G LTE. Tegra 2 interfaces with many types of modems via standard interfaces, including LTE. There is nothing inherently unique about LTE as far as Tegra 2 is concerned.
Their logic is undeniable, and it seems they haven't been given a fair deal over all this. The Samsung Galaxy Tab 10.1, which uses the Tegra 2 chip, has had zero issues running on Verizon's 4G LTE network. So, how can the Tegra 2 be the culprit. It doesn't seem likely. Kudos for NVIDIA for stepping up and defending their technology.

Source: Droid-Life