ARM has unveiled its fifth-gen mobile GPU solutions. The flagship Immortalis-G720 leads the line, followed by the Mali-G720 and Mali-G620 GPUs. The company has also changed the naming convention for its GPU architecture, simply calling it 5th Gen this time around. No more names like Valhall (4th Gen) or Bifrost (3rd Gen).
The ARM Immortalis-G720 brings massive performance and efficiency gains
The Immortalis-G720 is ARM’s best mobile GPU yet. Designed for the next generation of flagship smartphones, it brings improved performance and reduced memory bandwidth usage, delivering better framerates. The company claims an average 15 percent increase in sustained and peak performance over last year’s Immortalis-G715. It also claims a 40 percent reduction in memory bandwidth usage. This helps reduce the CPU load, leading to lower power consumption and higher-quality graphics. Effectively, you get more immersive visual experiences.
Many of these gains are brought in by ARM’s new geometry flow known as Deferred Vertex Shading (DVS) on the 5th Gen GPU. It’s the next step for Variable Rate Shading (VRS) and ray-tracing technologies, something ARM already excels in. It helps reduce memory bandwidth usage during VRS and ray tracing while ensuring that there’s no drop in framerate. The company has built this technology into the GPU, so developers can take advantage of it from the get-go. They don’t need to do anything on their end to use DVS.
In simpler terms, the Immortalis-G720 allows for more effective inclusion of PC-level effects such as “real-time dynamic lighting, blooming, depth of field, and screen space ambient occlusion” in mobile games. Other key specs include support for 10-16 cores, 2X architectural throughput for 64bpp texturing, high dynamic range (HDR) rendering, improved Vulkan dynamic buffers, and support for a 2x MSAA (Multisample Anti-Aliasing) module. As pointed out by XDA, earlier ARM GPUs would automatically jump to 4x MSAA when a developer requested 2x MSAA from the GPU.
Mali-G720 and Mali-G620 also bring similar gains
Thanks to the 5th Gen architecture, ARM’s Mali-G720 and Mali-G620 GPU also bring substantial performance and efficiency gains over the previous-gen solutions. Both of them support DVS and come with other new premium graphics features from the company. Of course, they aren’t as powerful as the Immortalis-G720 but they are intended for the more affordable segment as well. The Mali-G720 supports six to nine cores, whereas the Mali-G620 is limited to up to five cores.
It’s worth noting that OEMs are required to include a ray-tracing unit (RTU) only when they pair their chipsets with an Immortalis GPU. An RTU isn’t mandatory for the Mali-G720 GPU, even though the latter supports ray tracing as well. Nonetheless, the new mobile GPUs are all set to further bolster ARM’s stature as a formidable contender in this industry. “With the introduction of the 5th Gen architecture, we now have the foundation for the next generation of visual computing that will enable new game-changing graphical capabilities on mobile devices,” the company said.