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GPUs enable HD vision for computational photography apps

12 Jan 2016

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Imagination Technologies has unveiled a couple of PowerVR Rogue GPU IP cores geared to enable customers to create advanced high definition graphics with a superior experience for vision and computational photography-based applications in their next-generation devices. The PowerVR series7XT Plus GPUs extend the company's flagship series7XT lineup by adding support for OpenCL 2.0 as well as improving power/performance/area for vision applications, detailed Imagination.

With PowerVR series7XT Plus GPUs, customers can achieve the ultimate graphics experience with hardware virtualisation, multi-domain security, hardware tessellation, continued support for the latest APIs including OpenGL ES 3.2 and Vulkan and more, and now provide an even better experience for next-generation vision and compute applications, noted the company.

Initial series7XT Plus GPUs include the GT7200 Plus GPU with 64 ALU cores, and the GT7400 Plus GPU with 128 ALU cores. The GPUs are aimed to offer improved in-system efficiency, improved power efficiency and reduced bandwidth for vision and computational photography in consumer devices, mid-range and mainstream smartphones, tablets and automotive systems such as advanced driver assistance systems (ADAS), infotainment, computer vision and advanced processing for instrument clusters.

The GPUs include additional feature set enhancements with a focus on next-generation compute: up to 4x higher performance for OpenVX/vision algorithms compared to the previous generation through improved integer (INT) performance (2x INT16; 4x INT8); bandwidth and latency improvements through shared virtual memory (SVM) in OpenCL 2.0; and dynamic parallelism for more efficient execution and control through support for device enqueue in OpenCL 2.0.

As part of its continued focus on ensuring the best real-world performance in customers' silicon products, Imagination has tuned the latest series7XT Plus GPUs to achieve further improvements in in-system performance and efficiency, with an eye on latency, fabric, memory controller and memory characteristics. The improvements are based on system performance modelling with extensive emulator based analysis and GPU IP tuning, as well as market and customer input.

Improvements include: support for the latest bus interface features including requestor priority support; doubled memory burst sizes, matching the latest system fabrics, memory controllers and memory components; and tuned size plus improved cache efficiency which leads to roughly 10 per cent reduced bandwidth.

In addition, Imagination has made significant micro architectural improvements to improve power efficiency.

The PowerVR series7XT Plus GPUs are available for licensing.

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