I think most kids here are missing a huge chunk of their education.
RISC CPU's are way faster at a lot of tasks and have a way better power/performance ratio.
In fact this is comparing apples with apples for some part.
The Apple PPC computers used to outrun any given intel or clone back in the day and yes they did fail but not because the RISC platform failed.
Also even though this CPU is not designed for in your desk toaster it is not impossible to run games on the architecture to make it worse most (if not all) game consoles run on RISC CPU's.
And all major RISC players are running altivec/velocity/VMX or even VIM and there are a load of other instruction sets that are capable of competing with SSE* or MMX (IBM even updated there VMX instruction set to VMX128 for the xbox360).
Here comes the kicker both RISC platforms biggest selling point and the reason they fail for home computing (at least the reason fruit companies decided there is not enough money to make on them).
RISC is short for Reduced Instruction Set Computing, lots of calculations require little or even one instruction on an x86 system while on a RISC system to do the same calculation you need to give multiple instructions giving the same end result.
Breaking down the work in smaller jobs is not a bad thing in most cases the work will be done faster however the extra work programming for such a system is a specially at times you might need to get creative.
If programmed well RISC systems will beat any x86 system though since x86 systems are cheaper (time is money) to develop for and IBM/intel (and clones) are widely spread.
I for one wish Apple sticked to RISC and i hoped by some magic reason the pegasos would get an unbelievable market share back in the day if only because good RISC computing (in example POWER PPC or FreeScale) is in my opinion the last real opposition to x86 and motivator to both AMD and intel to Bake something of this world
PS: cuddo's for the this is not exactly comparing apples to apples remark some where on top it really made me smile
😀.