Current Video Card winning horse?

[Micha Feigin]

I don't have experience with ATI but they should work. I don't know how 
the drivers are.

NVIDIA works great for me, but I use the propriety drivers, not nouveau 
as I need the GPU for CUDA/OpenCL. CUDA is nvidia only, OpenCL at least 
under windows works on ATI, NVIDIA and ivy bridge Intel GPUs and all 
CPUs, but you need appropriate drivers. Under Linux I know that OpenCL 
works on NVIDIA and AMD with propriety drivers, CUDA works under NVIDIA 
with the same limitation. AMD used to have some limitations with their 
OpenCL implementation in terms of memory transfer rates and kernel 
launch delays, I believe that these have improved. I don't know if Intel 
has a driver for Linux.

To sum things up, you are probably OK with both options, but you will 
need to use propriety drivers for OpenCL/CUDA at this point, and I 
believe that if you go propriety, NVIDIA has a better driver.

All modern cards have at least two ports, the cheaper ones may have one 
DVI and one VGA, the higher end ones can go up to three or four displays 
with multiple DVI and HDMI or display port.

If the CUDA code is older, you may be better getting the older 5xx 
series NVIDIAs, as NVIDIA did some hardware changes that makes writing 
code for kepler a bit harder. They also increased compute power but not 
memory speed, so not all codes benefit from the increase. If you do want 
to run CUDA/OpenCL with a worthwhile speed, I would go for the gtx 570 
(Fermi) or the gtx 670 (Kepler). If you skip CUDA you can go for middle 
end cards.

On 10/09/2012 06:44 AM, Ira Abramov wrote:
> Ahoy maties!
>
> The time has come for me to upgrade some of my antique hardware, and I
> have ordered myself a nice mega-monitor with the ass-whooping resolution
> of 2550X1440. This means the old VGA on board won't do and I need to
> look at higher-end stuff (DVI-D at minimum). I googled this issue quite
> a bit, limiting google for results only from the last month and still
> I'm not sure who do we not-hate this month (I suppose I'm looking at ATI
> and nVidia)
>
> Requirements:
> - have it play nice with Xorg (Debian/Ubuntu).
> - preferably FOSS drivers, but only if rock solid.
> - preferably a GPU that supports CUDA/OpenCL (though the only client I
>    have for it ATM is BOINC https://boinc.berkeley.edu/wiki/GPU_computing )
> - preferably dual-port, so I can send a signal to a secondary
>    screen/projector.
> - No special gamer mad features needed. The most 3D I'll do with it is
>    probably Desktop Cube :)
>
> Thanks in advance!
>