I don't know much about,
or use laptops or the new all-in-one computers that have recently come to market.
I've always built my own desktop computers.
I wouldn't build a computer,
or buy one with an AMD processors,
but that's me.
I could build a really nice desktop computer with $999 AUD or USD.
In fact the computer I just built,
according to pcpartpicker.com.
Would have cost me $924.27 US.
Bottom line is...
Processors Speed and Number of Physical Cores.
Any processor which runs under 3GHz (gigahertz) will not be very fast,
given today's processor standards.
In general, the higher the GHz number for a processor,
the faster the processor can run and process data.
Today,
some processors are reaching 3.8 GHz,
or higher speeds out of the box.
There are a number of CPU's (Central Processing Unit),
which a consumer has to choose form.
Single-core CPU's can be hard to find today.
Two cores is okay,
but four-core CPU's can now be considered the "norm".
I use a CPU that has four physical cores.
You'd be hard pressed,
to find a duel-core cpu,
that can out preform most quad-core cpu's.
Without having to implement "Overclocking".
Another thing to think about,
is if the processor has "Integrated Graphic" or not.
RAM (random access memory).
8GB (gigabytes) is ideal for most users.
More is always better.
I have 16GB installed.
However,
my computer has the potential of supporting up to 64GB of memory.
Being able to add more ram in the future,
may also be something to consider.
A must have these days,
would be a 64bit operating system.
You'll be able to utilize more then 4GB of RAM with a 64bit OS.
32bit operating systems,
are limited to only 4GB of memory,
which is quickly becoming a thing of the past.
IMHO... I don't like laptops,
or the newer AIO's and wouldn't buy one.