Apple spends time on different kinda of specifications.
Instead of listing how much it can compute, they talk about how big it is (x inches by y inches by z inches), relative speed improvements (which aren't useful since the consumer may have no idea how slow or fast the prior one is), lots of specs around the price (price is a specification), what kind of I/O it has (thunderbolt), the processor (just not the Ghz), the graphics part (just not which model, but strangely they list the CPU speed over there -- and of course it's the rated speed for the more expensive model) then some generic statements about which Apple software you can run on it.
But because some people still want to have an idea of what it can compute they still offer
Instead of listing how much it can compute, they talk about how big it is (x inches by y inches by z inches), relative speed improvements (which aren't useful since the consumer may have no idea how slow or fast the prior one is), lots of specs around the price (price is a specification), what kind of I/O it has (thunderbolt), the processor (just not the Ghz), the graphics part (just not which model, but strangely they list the CPU speed over there -- and of course it's the rated speed for the more expensive model) then some generic statements about which Apple software you can run on it.
But because some people still want to have an idea of what it can compute they still offer
http://www.apple.com/macmini/specs.html
I'm not particularly interested in either device, but it's clear that Google's sales page is almost a copy of Apples page.