While previous Chromebooks have been powered by various flavours
of Intel chips (from a 1.66 GHz single-core Intel Atom N455 in
the original to a 1.3GHz dual-core Intel Celeron 867 in the
model this latest Chromebook supersedes), this one has an ARM
processor – specifically, the 1.7GHz dual-core Samsung Exynos 5
Dual.  That it has an ARM processor at all is notable in itself,
but it's especially interesting that this is a Cortex-A15 core,
40% faster than the Cortex-A9 core (all other things being
equal); the A9 is a chip that takes various forms, notably the
Tegra 3 series and A5 and A5X systems-on-a-chip that power the
Apple iPad 3 and Apple iPhone 4S.  What all this translates to
in real life is that the new Chromebook really does feel nippy –
something we'll cover more in the next section – and is totally
silent when you're using it.  Samsung Chromebook XE303C12 Wi-Fi
review The Chromebook is slim and light. Not 'Ultrabook' or
'MacBook Air' slim and light, but notable  Of course, part of
the reason for the