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Review: Rock Quaddra 64 3.7 Laptop

by Tarinder Sandhu on 21 December 2004, 00:00

Tags: rock, Stone Group

Quick Link: HEXUS.net/qa5t

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Memory benchmarks

Looking at memory bandwidth and latency first.



The Achilles Heel of running processors that can only handle single-channel memory is, inevitably, a lack of comparative bandwidth. However, the use of DDR400 SODIMMs and a 200MHz driven CPU clock means that a potential 3.2GB/s is on tap. According to ScienceMark 2.0, around 3GB/s is realised. As a comparison, the Ixius 3.6 uses a cut-down Intel i915P Grantsdale motherboard and dual-channel memory. That's why it look better here. Voodoo's use of DDR333 SODIMMs negatively impacts it bandwidth performance, as expected.



Latency is where Athlon 64s always strike back. 47ns is literally half the delay that the Ixius 3.6 has to put up with



2.4GHz of Athlon 64 3700+ power makes a 3.6GHz Pentium 4 Prescott-powered laptop look slow. The words desktop replacement have never rung truer.



Rock's choice to use the fastest S754 CPU available is vindicated by the results thus far.