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From David Culler again
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Basic driver of performance advances is decreasing feature size ( ?)
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Circuits become either faster or lower in power
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Die size is growing too
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Clock rate improves roughly proportional to improvement in ? (slower as speed decreases)
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Number of transistors improves like ?? (or faster as die size increases)
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Performance increases > 100x per decade; clock rate x, rest of increase is due to transistor count
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Current microprocessor: 1/3 compute, 1/3 cache, 1/3 off-chip connect
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But of course you could change this natural "sweet spot"
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? 1
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CPU
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Cache
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Interconnect
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