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GPU Compute Model
GPU Compute Model
3 questions
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Modern GPUs have a tiered memory hierarchy. Which ordering from fastest to slowest is correct?
Hide and think first
A.
GPU memory is faster than CPU RAM, making host-device transfers irrelevant
B.
HBM → L2 → L1 → Registers, from fastest to slowest
C.
Registers → L1/shared memory (SRAM) → L2 cache → HBM (global memory) → host RAM (via PCIe)
D.
All GPU memory has uniform access time, unlike CPU memory hierarchies
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