I think the WGS may have started with 100, but the one I have is the "speed bump" 110. There is a "technically" faster point with the Radius; the internal SCSI buss is faster than on any of the Macs of the time. This is another reason why I'm going with the Radius, I'll use the OS drive on the stock internal buss. I know it will be slower, but make troubleshooting easier.

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The SCSI buses on the Radius are identical to the SCSI buses on the Apple because the Radius logic board and ROM is identical to the Apple logic board and ROM with the single exception that the Radius board omits the HD-45 connector and substitutes a 15 pin video connector for the DRAM based video out.

The internal SCSI bus on the 8100 and Radius 81/110 (and Power Computing Power 80, 100, & 120) is based on an NCR 53CF96 and is Fast SCSI-2, which has a theoretical transfer rate of 10 MB/s. The internal/external SCSI bus on those machines comes out of the CURIO chip from AMD but is probably a 53C96 or 53C94 cell and is *unenhanced* SCSI-2, which has a theoretical transfer rate of 5 MB/s.