The Arm Mali-G51 high area efficiency GPU was the first GPU to take the Mali Bifrost graphics architecture to mainstream devices. Focused on efficiency, the Mali-G51 provides improved energy efficiency, and improves area efficiency and performance density over the previous generation Mali GPUs. Mali-G51 is one of the smallest Vulkan enabled GPUs and brings complex content such as virtual spaces and 360 video to the mainstream market. 

Mali-G51 Block Diagram.

Arm Mali-G51 GPU

Features Value Description
Anti-Aliasing 4x MSAA
16x MSAA
4x Multi-Sampling Anti-Aliasing (MSAA) with minimal performance drop.
API Support OpenGL® ES 1.1, 2.0, 3.1, 3.2
Vulkan 1.0*
OpenCL™ 1.1, 1.2, 2.0 Full Profile,
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 32kB-512kB
32KB-64KB for MP1.
64KB-128KB for MP2.
128KB-256KB for MP3 & MP4.
256KB-512KB for MP6 configurations.
Memory System Virtual Memory Built-in Memory Management Unit (MMU) to support virtual memory.
Multi-Core Scaling 1 uni-pixel core to 3 dual-pixel cores 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.
Smart Composition 16x16 pixel block size Smart Composition extends the concept of Transaction Elimination to every stage of UI composition. Identical pixel blocks of input surfaces are not read, not processed for composition and not written to final frame buffer.

Performance - Mali G51 (MP6)

Feature Value Description
Frequency 650 MHz
Throughput 279 Mtri/s, 3.9 Gpix/s
with no triangles culled 
Technology in 28nm HPM