updated 09:53 pm EST, Tue January 7, 2014
Predecessor used in new iPhone, iPad offerings
Imagination Technologies has unveiled the next generation of its PowerVR Rogue graphics processing (GPU). The new Series6XT Rogue architecture builds on the Series6 architecture, which consumes the lowest memory bandwidth in the industry while delivering the best performance per square millimeter and per mW, according to the company. The Series 6 is the GPU used in Apple's A7 processor, found in Apple's new iPhone 5s, Retina iPad Mini, and the iPad Air.
The Series6XT architecture features scalability, supporting implementations up to eight compute clusters that scale linearly in GFLOPS and texturing rates. Yesterday, Imagination unveiled the first three cores in the Series6XT generation with two, four and six compute clusters.
According to the company, the Series6XT cores achieve up to a 50 percent performance increase on the latest industry standard benchmarks compared to equivalent configurations of previous-generation cores. Speed gains are realized by a streamlined instruction set, better resource allocation, GPU compute data path optimizations, and PowerGearing advanced power management.
Imagination provides developers with free access to the PowerVR Graphics SDK, a cross-platform toolkit designed to support all aspects of 3D graphics application development. Developers can join the PowerVR Insider community, and download the SDK for free.
Initial PowerVR Series6XT IP cores have been delivered to lead partners, and are available for general licensing now. The GX6250, GX6450 and GX6650, have two, four and six compute clusters respectively. An area-optimized two cluster implementation, the GX6240, is also available. Apple has a 10 percent stake in the company, and is likely to have samples on hand now for evaluation in future iOS devices.