[Qgis-user] QGis and Mac hardware

[Nyall Dawson]

On 8 Nov 2016 6:10 AM, "Andreas Neumann" <a.neumann at carto.net> wrote:
>
> Hi,
>
> I would also recommend going with the 15 inch display. The 13 inch
display is on the lower side and probably not a lot of fun. QGIS has
several dialogs and also the styling side panel introduced in 2.16 needs a
bit of a minimum size. If your display is only 13 inch you end up scrolling
a lot in the dialogs and panels.
>
> (Q)GIS needs a bit of a screen size to use it efficiently. Of course, if
you are not on the road you can also connect an external display, which I
also recommend.
>
> I would also upgrade RAM a bit. As others said, the GPU acceleration is
not yet supported.

Not yet - but given that we've moved to qt5 and now have access to qt3d,
it's probably not long before we start to see 3d features in QGIS.

So I'd also suggest going with the future proof option.

Nyall

>
> Andreas
>
>
> Am 07.11.2016 um 19:18 schrieb Nicolas Cadieux:
>>
>> Hi,
>>
>> Currently GPU acceleration is not used.  Maybe some plugins can use it
but I have not seen anything yet.  I have put in a request to use GPU for
the qgis 3.0 raster calculator as it needs to be upgraded for huge
rasters.  Currently , the qgis raster calculator can not handle big
rasters.  The new version needs to break up the raster into smaller chucks
and if you have done that, you might as well use the multi CPU ou GPU to do
the rest.  I an hopping this will be fixed for 3.0.  Rendering is
multithreaded and will be faster the more cores you have.  Personally, I
would go for the quad core without even thinking for this and other
softwares.  I would think of getting an ssd also.  I have not used qgis on
a MAC (PC and ubuntu only) but I expect this comment  to be valid for Macs
also.
>>
>> Nicolas
>>
>> Le 7 nov. 2016 à 11:12, Matthias Kuhn-2 [via OSGeo.org] <[hidden email]>
a écrit :
>>
>>> Hi
>>>
>>> On 11/07/2016 05:02 PM, Square Cube wrote:
>>> >
>>> >
>>> >> I am looking to update some hardware and am trying to evaluate what
>>> >> performance difference in QGis might be gained from the options
>>> >> currently on offer from Apple.  I have two specific questions:
>>> >>
>>> >> - Does QGis have GPU acceleration features that leave the graphics
>>> >> card to perform certain calculations, instead of the CPU?
>>>
>>> No
>>>
>>> >>
>>> >> - Does QGis take advantage of multiple cores and / or multithreaded
>>> >> rendering?
>>>
>>> Yes, and it is expected that it will make even more use of multiple
>>> cores in the upcoming QGIS 3.0 version.
>>>
>>> Matthias
>>>
>>> >>
>>> >> I am trying to understand if it would be worth my while investing in
a
>>> >> 15" MacBookPro (with quad core CPU and discreet graphics card) over
a
>>> >> 13" MacBook Pro (with dual core CPU and integrated graphics).
>>> >>
>>> >> Very grateful for any advice.
>>> >
>>> >
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