Lewis <g.k...@gmail.com.dontsendmecopies> wrote:
> In message <
190620140712133788%mich...@michelle.org>
> I wonder if this machine indicates there will not be a refresh of the
> other iMacs any time soon.
An interesting point on that: rumour sites leaked that there was
evidence in the first developer seed of 10.9.4 (and in Yosemite) of new
iMac model identifiers - I remember mention of three new identifiers
which started with "iMac15".
The current generation of iMacs has model identifiers "iMac14,1"
(21.5-inch) and "iMac14,2" (27-inch). The new entry level model is
"iMac14,4". (Where did model 3 go?)
The new model identifiers imply that Apple is at least testing or
preparing for a new generation of iMacs, and the changes will be more
than just a CPU speed bump in the same Haswell family (as that can be
done without changing the model identifier).
It doesn't tell us very much about what feature changes they might have.
A model identifier change could be required by something as minor as
updating the chipset to Intel series 9 (which supports Haswell and
Broadwell). If these iMacs are released this year and continue to use
desktop-class processors, they would still be Haswell (Broadwell desktop
processors aren't likely to be available until next year). If Apple
switched to using laptop-class processors (like the MacBook Pros) they
might be available before the end of the year with Broadwell.
A more reasonable set of changes (all parts of which should already be
available) would be slightly faster Haswell desktop processors, GPU
updates in some models, the Intel 9 series chipset, and Thunderbolt 2.
Then there are wishes like a retina display. Assuming Apple can get the
display panels, that should already be feasible for a 21.5" iMac
(3840x2160, which is a standard 4K resolution). The 27" iMac is more of
a challenge, as 5120x2880 is more pixels than can be pushed through
DisplayPort 1.2. DisplayPort 1.3 can cope but I don't know how far it is
away from being available, plus new GPUs might be needed. (External
interfaces will still be a problem, as Thunderbolt 2 isn't fast enough
to carry DisplayPort 1.3.)
The Yosemite leak mentioned evidence of resolution scaling support for
iMacs, which implies a retina display.
This leads me to the theory that Apple is intending to release or at
least preview iMacs with retina displays, which will probably require
Yosemite, so an announcement at the Yosemite release event would be the
sensible time. Perhaps October?
If the non-retina models are also updated around that time they will
probably be a minor speed bump from the current models along the lines I
suggested above. I expect the new entry-level model would stay as it is.
> I need to buy an iMac in the next few months and I was sort of thinking
> there might be a refresh/speed bump in August, but now I am thinking
> that's not going to happen.
The presence of the new model identifiers in the 10.9.4 developer seed
is a curious point. I took that as a sign the new models might be
relased as soon as August (estimated point 10.9.4 will be ready).
Apple usually does an internal-only build to add support for new models,
which developers never get to see, so the presence of new iMac model
identifiers in the 10.9.4 developer seed may have been a mistake.
It would be odd timing to release a new entry level model now and update
the other models as soon as August, so I'm now thinking the other models
won't get updated until later in the year - September or October is
possible, and would be about a year after the current models were
introduced.
--
David Empson
dem...@actrix.gen.nz