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Per ARM Mali optimisation guide, mobile GPUs typically use TILED rendering, which reduces which resource cost?
ATriangle setup time on the rasterizer
BExternal memory bandwidth (to / from VRAM)
CTexture cache hit rate by 50% guaranteed
DCPU instruction count per frame always
Answer & Solution
Correct answer: B. External memory bandwidth (to / from VRAM)
ARM Mali + Imagination PowerVR + Apple GPU docs: tile-based deferred rendering caches one tile in on-chip SRAM, draws to it, then writes once. Memory bandwidth is precious on mobile.
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