Equation 12 · Comparing the Main Approaches to AI Memory Systems and the Bandwidth Wall
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Symbol W
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The fourth approach does not try to widen W or shorten the trip at all. It asks whether the trip is necessary in the first place, and answers by putting a small amount of compute inside or immediately beside the memory array, so that some operations complete without ever crossing the bus that the other three approaches are all trying to make wider, faster or longer-reaching.
Sources cited in the article section
- [9] Aquabolt-XL: Samsung HBM2-PIM with In-Memory Processing for ML Accelerators and Beyond ↗
- [10] Benchmarking a New Paradigm: An Experimental Analysis of a Real Processing-in-Memory Architecture ↗
These citations give research context. Read each source to check which claims it supports.
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