On 19/12/2011 18:45, Rowland McDonnell wrote:
> We're looking to buy a new MacBook Pro (to replace the MacBook destroyed
> by water - the firm is paying for the new machine).
>
> It's for my wife at work - mostly for document preparation and accessing
> various Web-based services provided by the firm (she's a uni. lecturer).
>
> (an Air's not quite up to the job, due to needing the flex of the MBP's
> wider set of interfaces)
I had a similar dilemma over the summer: 13" Air vs 13" Pro. There was a
thread regarding this if you care to look it up.
I agree the shortage of USB ports is an issue, but I still went with the
Air.
> What I'm wondering is this: how do the CPU options compare? All I can
> find out about the CPUs on Apple's Website is marketing flim-flam which
> explains nothing of any use.
>
> I'm particular concerned with future-proofing - is there any reason to
> think that the i5 will have its support dropped significantly sooner
> than the i7?
Like Woody, I doubt it. But, I'm a recent convert to Macs so have no
knowledge to base that on other than the fact the iCore family of procs
are so similar to each other that it'd be difficult to differentiate
between them.
> Also, the Wikipedia page on Intel Core family suggests that the Core i5
> CPU in portable computer form has hyperthreading turned off, but Apple's
> Web site says that all MacBook Pros support hyperthreading. Can anyone
> explain this discrepancy? And would it really matter if hyperthreading
> were off?
My late 2011 Air has a Core i5 1.7GHz which Activity Monitor declares as
having four cores. Presumably two physical and two hyperthreaded.
Performance wise I haven't really noticed any issues with the CPU other
than when I'm doing some intensive statistical analyses with R. 'Office'
or web type stuff is very smooth and quick.
> And finally: Apple seems to be offering Mini DisplayPort to<other
> video> adaptors for these machines, but they don't seem to have Mini
> Displayports fitted.
The Thunderbolt socket is the same as miniDP, so any miniDP cable will
work (I've tried several Apple and non-Apple). The advantage of
Thunderbolt is that it can *also* work as an I/O port. See the Apple 27"
Thunderbolt display and you notice that the screen works as a docking
station with additional USB and thunderbolt ports. Note: to drive any
external display above 1920x1200 you must use DP or thunderbolt.
I went for the Air over the Pro for two main reasons: portability and
screen resolution. The Air is very portable as it's very light and the
battery usually lasts 6 hours or more. In testing the Pro vs Air in an
Apple shop I noticed that the native screen resolution is noticeably
better on the air: 1440x900 vs 1280x800.
Another slight worry I had was the maximum ram of 4Gb. However, I
currently have Firefox with 30-odd tabs, Word, Powerpoint, Excel,
Preview with 10-odd pdfs, Mail, Thunderbird, Eclipse plus other sundry
apps all open with no performance problems. So, unless you work with
many VMs or large image/movie manipulation, I doubt more RAM would make
any difference.
|