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Memory Wall

What is the memory wall? The growing disparity between processor speed and memory bandwidth that limits system performance in computing.

The memory wall refers to the increasing gap between processor speed and memory bandwidth, where the rate of improvement in processor performance outpaces the rate of improvement in memory performance due to limited I/O and decreasing signal integrity. This disparity limits the overall system performance, as the processor spends more time waiting for data from memory, leading to a bottleneck. The memory wall is a significant challenge in performance-intensive computing, such as artificial intelligence (AI) and high performance computing (HPC) applications.

The AI Memory Wall

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