Arm unveils a mobile GPU with hardware ray tracing
Something to look forward to: A mainstay of Arm’s latest roadmap is a trio of new mobile graphics processors offering a range of new features and performance improvements. Among them is ray tracing, a feature so far only available in newer game consoles and computer GPUs.
Arm announced a new flagship mobile GPU this week as part of an upcoming CPU and GPU roadmap. Called Immortalis and featuring at least 10 cores, it will bring hardware ray tracing and a new runtime to high-end Android phones. It will also feature Variable Rate Shading (VRS) to save performance and battery life.
Ray tracing requires significant power which initially kept it out of the mobile space, but mobile hardware seems to be increasing to meet this challenge. Last year’s Mali-G710 already supports software ray tracing, but its successor is moving to hardware ray tracing similar to Nvidia’s RTX graphics cards, AMD’s Radeon RX 6000 series, PlayStation’s 5 and Xbox Series consoles.
Arm isn’t the only company to introduce mobile ray tracing. Imagination Technologies unveiled the IMG-CXT last November. Arm hasn’t detailed the Immortalis specs yet, but the IMG-CXT is said to achieve about a quarter of the ray tracing power of the RTX 2060. The first Immortalis chip, the G715, is expected to launch early 2023.
Arm’s roadmap also includes two new premium entries from Mali. Although they lack ray tracing, they still support VRS and the new runtime. The top-end model, Mali-G715, will come with 7 to 9 cores, while Mali-G615 will reach 6 cores. The improved runtime and other features should make all of Arm’s new GPUs more powerful and efficient. Arm will host a webinar to offer a more in-depth look on August 24th.