Specifications 

The Arm Mali-G31 GPU is an ultra-efficient GPU based on the Mali Bifrost architecture. Bringing the benefits of Bifrost to a different tier of device, Mali-G31 builds on the success of the previous ultra efficient products in the Mali-400 Utgard series. With significant energy and area savings compared to the next level of device, plus support for the very latest APIs, Mali-G31 is the GPU of choice for cost constrained devices.

MALI-G319 Block Diagram.

Arm Mali-G31 GPU

Features Value Description
Anti-Aliasing 4x MSAA
8x MSAA
16x MSAA
4x Multi-Sampling Anti-Aliasing (MSAA) with minimal performance drop.
API Support OpenGL® ES 1.1, 2.0, 3.2
Vulkan 1.2
OpenCL™ 1.1, 1.2, 2.0 Full Profile,
RenderScript
Full support for next-generation and legacy 2D/3D graphics applications.
Bus Interface AMBA®4 ACE-LITE and AXI Compatible with a wide range of bus interconnect and peripheral IP.
L2 Cache Configurable
8KB for MP1.
32KB-64KB for MP2.
Memory System Virtual Memory Built-in Memory Management Unit (MMU) to support virtual memory.
Scalability 
1 uni-pixel core or dual-pixel core Optimized for high area and energy efficiency to address mainstream device requirements.
Adaptive Scalable Texture Compression (ASTC) Low dynamic range (LDR) and high dynamic range (HDR). Supports both 2D and 3D images
ASTC offers a number of advantages over existing texture compression schemes by improving image quality, reducing memory bandwidth and thus energy use.
Arm Frame Buffer Compression (AFBC) Version 1.2
4x4 pixel block size
AFBC is a lossless image compression format that provides random access to pixel data to a 4x4 pixel block granularity. It is employed to reduce memory bandwidth both internally within the GPU and externally throughout the SoC.
Transaction Elimination 16x16 pixel block size Transaction Elimination spots the identical pixel blocks between two consecutive render targets and performs a partial update to the frame buffer with the changed pixel blocks only, which reduces memory bandwidth and thus energy.

Performance - Mali-G31

Features Value  Description
Frequency 650 MHz in 28nm HPM
Pixel/Texturing Throughput 1.3 Gpix/s in 28nm HPM

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