Explain the differences especially between the different tiers.
Example for the first you would say something like.
This build features a quad core processor at 2.05GHz. While a lower clock speed the 4 cores will be beneficial in newer games and multitasking. It's an APU, meaning it's a CPU and GPU on the same chip. Because of this we have picked 8GB of fairly speedy RAM at 2133MHz. Since dedicated video cards have very fast video RAM, you'll want to spend a bit more on faster RAM to speed up the performance of the GPU in this chip. The motherboard is the right socket and decently priced. 1TB of storage is fairly standard and the power supply is adequate while offering room for a modest dedicated GPU.
Then for the second one pointing out the difference.
This features an APU as well (see now they know what APU means, educate them, don't just give them a list) that is faster. Different motherboard was used to account for a different CPU socket. Same speedy RAM to help the APU. 1TB of storage is adequate again and a slightly higher wattage PSU will allow for a better dedicated video card to be added later on.
And continue with the rest.
Basically you want to educate them on the basic idea of what the machine is and how it's different than the other ones. This will allow them to weigh cost versus benefit when they're building.
Also I personally would get a quad core AMD chip (760K probably) rather than the Pentium. Quad cores really are a necessity anymore and the overclockability will be lost on most people that come to a thread like this for help. Remember this is a more guideline and can be tailored based off of what specific users want. Besides even that 760K can clock pretty well, even if it isn't as efficient as the Intel offering, I'd prefer 4 AMD cores as opposed to 2 Intel ones in 2014.
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