Viper1 said:
Those are indeed the clock rates but what most peopel don't understand is that different processors handle different amounts of work per clock cycle. Think of it like what I am going to show you below. The numbers are purely for example and do not perfectly reflect their actual capabilites. Xbox @ 733 Mhz * 2 operations per clock cycle = 1.466 billion operations per second. GC @ 485 Mhz * 4 operations per clokc cycle = 1.940 billion operations per second. As you can see, even though the GC has a lower clock rate, it could still do more work in a given time interval. |
The Xbox was 1 operation per cycle. The GC was 3. Test between the P3 and the PowerPC process showed that a 200mhz powerpc processor got an average of 3 times the performance over a 300mhz Pentium 3. So, it was 3 times faster at a lower clock rate.
Of course the processer in the Xbox isn't even a Pentium 3. Its a Pentium 3 based Celeron(low budget Pentium 3 with less features) so it doesn't get as high performance as the real thing.