I'll give you the last point, but the K790 was released in 2005. The 3D processor would be largely irrelevant as it's hardly ever used, and the ARM processor is largely irrelevant given the nature of Java Platform. I believe it's a 137MHz ARM running a Java byte-code interpreter.
It is roughly 20 years newer design than MC68000. 68000 cant do floating point calculations in hardware and even simple integer add/sub operations take several cycles to complete.