The IMG B-series graphics controllers will be available as the lightweight BXE series, the automotive BXS series, the mid-range BXM series and the BXT series for data centers.
Imagination’s PowerVR was once competing in the PC graphics card market with its Kyro series graphics cards, among others. However, the company soon specialized exclusively in graphics controllers used in mobile circuits.
In recent years, rumors and hints of Imagination’s possible return to more powerful graphics cards, perhaps even the PC market, have circulated on the Internet. Now the company has released a new generation of graphics cards and they really came in a whole new power class, but not in the PC market. Imagination’s new PowerVR IMG B series includes four different families of graphics controllers: BXT for data centers, BXM for mid-range mobile games and TVs, BXE for user interfaces and more basic games, and BXS for the automotive world with support for ISO 26262.
All B-Series graphics drivers are based on the ability to scale performance with multiple “cores”. What makes this special is that in the BXT and BXM series, each core can act not only in collaboration, but also as completely separate graphics controllers that can also be physically located on different chips. In the BXE series, any additional cores will not be able to operate independently. In the BXT example of Imagination, one chiplet had two cores in the MC2 configuration and the other chip had two cores in the MC1 configurations. The new B-Series graphics controllers are said to be 30% more energy efficient compared to the A-Series when both are run at the optimal power budget set by the company.
The top model of the most powerful BXT series, the BXT-32-1024 MC4 is equipped with four SPUs (Shader Processing Units, “GPU core”), each with four USCs (Unified Shading Cluster). It is capable at its best of 6 TFLOPS FP32 performance and 24 TOPS artificial intelligence computing. However, with regard to artificial intelligence figures, it was not specified which precision of integer calculations (INT).
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- Dec 14, 2020 Google Android continues to have the lion share of the mobile market, powering around 75% of all smartphones and tablets, making it the most used operating system in the world. Imagination’s PowerVR architecture-based IP and the Android OS are bedfellows, with a host of devices based on Android coming to market all the time.
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All new B-Series graphics drivers also support Imagination’s new IMGIC image compression method. It replaces the PVRIC used by previous models and is said to be not only more versatile and efficient, but also based on a much simpler algorithm. According to the company’s slides, it is able to compress image data to 75% of the original losslessly, to 50% visually losslessly and as much as 25% when necessary, but it has a visible effect on quality. With IMGIC, for example, BXM series graphics controllers require 35% less bandwidth than similar A-series models.
According to Imagination, several parties have already licensed the new architecture. One of these is Innosilicon, which will release PCI Express bus graphics for video servers. They go on sale both in China and worldwide. According to AnandTech, Innosilicon was previously known primarily as an IP designer who designed NVIDIA’s GDDR6 memory drivers, among other things. We warmly recommend to those interested A more in-depth article by AnandTech on the subject.
Source: Imagination
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Drivers Imagination Reviews
Imagination is now hiring for skilled driver developers to be 'a founder of our new Linux open source graphics driver project.' Imagination is currently hiring for Linux open-source graphics drivers. This just isn't an open kernel driver but is said to be both for open-source kernel and Mesa drivers. '
We need you to join the Linux driver development team and put your software development skills to the test. You will focus on developing a new Linux open source graphics driver stack, including Mesa and kernel-mode drivers. You will be a member of a small team, working alongside other software teams implementing the existing driver stack for PowerVR graphics hardware.' This open-source driver would be for both current and next-gen graphics hardware.
Drivers Imagination Program
I'm cautiously optimistic, but let's not forget five years ago Imagination was also hiring for open-source graphics driver developers and not much came out of that effort. Hell for nearly a decade has been talk at different times of varying open-source PowerVR drivers.
At least compared to years ago, these days there are multiple embedded graphics processors supported by open-source kernel DRM drivers and within Mesa a growing number of drivers like Freedreno/Turnip, Broadcom V3D, Panfrost, and others. With support for licensing PowerVR graphics for even SiFive RISC-V SoCs now, having an open-source driver does make this possibility more appealing. Let's hope in 2020 it becomes a reality with a Linux kernel and Mesa driver stack for Imagination PowerVR graphics.