PortalPlayer, Inc. In February 2008, Nvidia acquired Ageia, developer of the PhysX physics engine and physics processing unit. Nvidia announced that it planned to integrate the PhysX technology into its future GPU products. In July 2008, Nvidia took a write-down of approximately $200 million on its first-quarter revenue, after reporting that certain mobile chipsets and GPUs produced by the company had "abnormal failure rates" due to manufacturing defects. Nvidia, however, did not reveal the affected products. In September 2008, Nvidia became the subject of a class action lawsuit over the defects, claiming that the faulty GPUs had been incorporated into certain laptop models manufactured by Apple Inc., Dell, and HP. In September 2010, Nvidia reached a settlement, in which it would reimburse owners of the affected laptops for repairs or, in some cases, replacement. On January 10, 2011, Nvidia signed a six-year, $1.5 billion cross-licensing agreement with Intel, ending all litigation between the two companies. In November 2011, after initially unveiling it at Mobile World Congress, Nvidia released its Tegra 3 ARM system-on-a-chip for mobile devices. Nvidia claimed that the chip featured the first-ever quad-core mobile CPU. In May 2011, it was announced that NVIDIA had agreed to acquire Icera, a baseband chip making company in the UK, for $367 million. In January 2013, NVIDIA unveiled the Tegra 4, as well as the Nvidia Shield, an Android-based handheld game console powered by the new system-on-chip. On July 29, 2013, Nvidia announced that they acquired PGI from STMicroelectronics. In 2014, Nvidia ported Valve games Portal and Half Life 2 to its Nvidia Shield tablet as Lightspeed Studio. Since 2014, Nvidia has diversified its business focusing on three markets: gaming, automotive electronics, and mobile devices. On May 6, 2016, Nvidia unveiled the first GPUs of the GeForce 10 series, the GTX 1080 and 1070, based on the company's new Pascal microarchitecture. Nvidia claimed that both models outperformed its Maxwell-based Titan X model; the models incorporate GDDR5X and GDDR5 memory respectively, and use a 16 nm manufacturing process. The architecture also supports a new hardware feature known as simultaneous multi-projection (SMP), which is designed to improve the quality of multi-monitor and virtual reality rendering. Laptops that include these GPUs and are sufficiently thin – as of late 2017, under – have been designated as meeting NVIDIA's "Max-Q" design standard. In July 2016, Nvidia agreed to a settlement for a false advertising lawsuit regarding