The Carrera is an interesting card, but it suffers greatly in comparison to the "slower" Radius Rocket 33 running in Accelerator Mode.
The Rocket's RAM and Memory Controller are right there on the Accelerator - the Carrera needs to talk to System RAM across the PDS.
The SCSI II DaughterCard of the Rocket is on the same I/O bus as the Processor, Memory Controller and RAM, while the Carerra would need to do disk access across either the host's SCSI Chipset or a NuBus SCSI II Card, BOTH bottlenecked at the PDS level.
Removing bottlenecks has a great deal to do with overall system performance in the real world, MUCH more so than spurious claims re: speed increases due to raw processor clock rates! }
As for the IIci, that's not a fair matchup with the SE/30, whereas the underdog IIsi makes for a nice, cute lil' challeger of similar pedigree! [
] ]'>
The Rocket's RAM and Memory Controller are right there on the Accelerator - the Carrera needs to talk to System RAM across the PDS.
The SCSI II DaughterCard of the Rocket is on the same I/O bus as the Processor, Memory Controller and RAM, while the Carerra would need to do disk access across either the host's SCSI Chipset or a NuBus SCSI II Card, BOTH bottlenecked at the PDS level.
Removing bottlenecks has a great deal to do with overall system performance in the real world, MUCH more so than spurious claims re: speed increases due to raw processor clock rates! }
As for the IIci, that's not a fair matchup with the SE/30, whereas the underdog IIsi makes for a nice, cute lil' challeger of similar pedigree! [
] ]'>