I asked what people guessed about this very thing:
http://68kmla.org/forums/viewtopic.php?f=13&t=16764
The two test systems were:
System one: 1.8 GHz 7447a in a MDD tower with 2 gigs of DDR memory
System two: 1.733 GHz 7448 in a digital audio tower with 1.5 gigs of 133 MHz SDR memory
Small CPU benchmarks showed that the faster clock rate was obviously faster so long as everything fit into the cache, but larger benchmarks and tasks showed that the larger L2 cache in the 7448 more than made up for both the slower clock speed and the slower memory bus. In many instances, the 7448 system was more than 10% faster than the 7447a system doing stuff in BSD.
http://68kmla.org/forums/viewtopic.php?f=13&t=16764
The two test systems were:
System one: 1.8 GHz 7447a in a MDD tower with 2 gigs of DDR memory
System two: 1.733 GHz 7448 in a digital audio tower with 1.5 gigs of 133 MHz SDR memory
Small CPU benchmarks showed that the faster clock rate was obviously faster so long as everything fit into the cache, but larger benchmarks and tasks showed that the larger L2 cache in the 7448 more than made up for both the slower clock speed and the slower memory bus. In many instances, the 7448 system was more than 10% faster than the 7447a system doing stuff in BSD.