graphics cards for opengl?
Hi,
Any opinions on what "reasonable cost" graphics cards would be good for
openSCAD & FreeCAD use? Difference between
gaming cards & workstation grade cards?
Thanks,
Bill M.
Oh good. I was about to ask the same.
Particularly which manufacturer/type has experienced bad driver issues. (and
hence to be avoided)
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As someone who at one point upgraded my gaming PC roughly every year, I have
used both ATI/AMD and nVIDIA cards extensively and I usually push them to
their limits - sometimes beyond their limits, to my regret (and expense!).
/My purely subjective opinion/ is that nVIDIA is marginally more reliable
from a driver point of view than ATI (there was a glimmer of hope when AMD
took over but that hasn't really materialised) but I'm not convinced that
you'd ever see this if you're just using OpenSCAD.
I am currently looking at building a new games PC right now and the
bang-per-buck of the current flagship AMD cards is difficult to ignore, but
the issues I hear that are plaguing some owners are the same that have
always plagued me with ATI/AMD cards, which puts me off a little bit. Whilst
a pair of flagship nVIDIA cards is a stupidly expensive option, the
potential for reduced downtime almost justifies the cost. Almost.
In any case, my recommendation is to always use the official manufacturer's
drivers rather than any 'branded' versions that come with the cards
themselves, as they tend to be more stable and contain less bloatware.
They're also usually more recent as it takes time for the OEMs to re-badge
and apply branding.
Some card manufacturers offer lifetime/extended warranties, which may sway
your decision.
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Some interesting reading here:
http://www.tomshardware.com/reviews/best-workstation-graphics-card,3493-32.html
It's not strictly about workstation cards, some bit of comparing with
gaming cards as well.
-bill
On 12/09/2014 05:04 PM, MichaelAtOz wrote:
Oh good. I was about to ask the same.
Particularly which manufacturer/type has experienced bad driver issues. (and
hence to be avoided)
Unless specifically shown otherwise above, my contribution is in the Public Domain; To the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. This work is published globally via the internet. :) Inclusion of works of previous authors is not included in the above.
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In what way do you feel limited by your current hardware, and what do you
currently have?
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Ah, well, I don't have a gpu card at all right now. Just the Intel
graphics that came with the chipset, a core 2 duo E8500 if memory
serves. This system is not really deserving of spending much on
upgrades, so I'm looking to see what I should be looking for in the near
future.
On 12/10/2014 04:15 PM, Bananapeel wrote:
In what way do you feel limited by your current hardware, and what do you
currently have?
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Bananapeel wrote
In what way do you feel limited by your current hardware, and what do you
currently have?
And I have a 2.53Ghz dual core CPU and NVIDIA ION graphics.
The F5 preview is slow for complex models, getting to unusable on highly
complex ones. (I have yet to test 2014.12.09 changes)
I have a newer system I'm looking to migrate to, 16GB, faster Quad core,
currently with Intel integrated graphics, and an empty slot for a graphics
card.
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Unless OpenSCAD implements CUDA, OpenCL, or another GPU-accelerated
compute tech, you won't see any difference between ATI and nVidia as
far as OpenSCAD rendering or display performance is concerned.
nVidia's linux drivers are, apparently, far better under linux. ATI's
drivers have always been pretty shitty even under Windows, speaking as
someone who has bought exclusively ATI cards for his gaming computer
for the last decade.
I'd see if you're happy with the performance of the embedded intel
graphics, but get a motherboard with a PCIex16 slot so you have the
option of putting in a separate video card later if you want.
On 11 December 2014 at 11:25, MichaelAtOz oz.at.michael@gmail.com wrote:
Bananapeel wrote
In what way do you feel limited by your current hardware, and what do you
currently have?
And I have a 2.53Ghz dual core CPU and NVIDIA ION graphics.
The F5 preview is slow for complex models, getting to unusable on highly
complex ones. (I have yet to test 2014.12.09 changes)
I have a newer system I'm looking to migrate to, 16GB, faster Quad core,
currently with Intel integrated graphics, and an empty slot for a graphics
card.
Unless specifically shown otherwise above, my contribution is in the Public Domain; To the extent possible under law, I have waived all copyright and related or neighbouring rights to this work. This work is published globally via the internet. :) Inclusion of works of previous authors is not included in the above.
The TPP is no simple “trade agreement.” Fight it! http://www.ourfairdeal.org/
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On Thu, Dec 11, 2014 at 03:25:18PM +1000, tjhowse wrote:
Unless OpenSCAD implements CUDA, OpenCL, or another GPU-accelerated
compute tech, you won't see any difference between ATI and nVidia as
far as OpenSCAD rendering or display performance is concerned.
[....]
I noticed that CGAL and OpenCSG both have a dependency on libGL, so they do use
OpenGL for something or other.
OpenSCAD itself appears to use QtOpenGL, presumably for rendering the viewport.
--
Kind regards,
Loong Jin
For running both OpenSCAD and FreeCAD you shouldn't really need to get a
high-end videocard.
On my stationary I've got a quad-processor, 16GB ram and a ATI HD 6570
videocard. I could probably run Battlefield without problems, but a fairly
simple model in OpenSCAD is pretty choppy when rotating.
Even on my laptop I can run complex simulations in Chrome and WebGL (f.ex
http://aleksandarrodic.com/p/jellyfish/) that are just silky smooth, while
rotating a cube in OpenSCAD is a choppy experience. Yes, sure, it's probably
a different technology, but the point is that the weakest link here isn't
the graphics card or the drivers, but OpenSCAD itself. Hopefully this will
become better if OpenSCAD switches over to newer OpenGL technology. I think
I saw it mentioned somewhere that someone was working on that?
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