[vfio-users] help with choice of GPU for passthrough

[thibaut noah]

Even though nvidia cards are working, if i'm correct sli support is broken
when crossfire is not, correct me if i'm wrong.
You could purchase the cards (titan or whathever) and use the one week
delay you have to return them to test them, assuming your setup is set
already
On Tue, 26 Jan 2016 at 03:41, Okky Hendriansyah <okky.htf at gmail.com> wrote:

> > On Jan 26, 2016, at 04:57, Bronek Kozicki <brok at spamcop.net> wrote:
> >
> > I'm upgrading my home machine, it is running two Windows 7 VMs and they
> need identical hardware configuration. The host is 2x Xeon E5-2667V2 +
> 128GB RAM - obviously oversized for only two Windows ;-P . I'm considering
> choice between Radeon Fury Nano and more expensive nVidia. I know that
> Radeons have problem with PCIe reset (in kernel 4.1.15 + qemu 2.4.1), is
> this likely to have been solved in a newer version I am not using yet/not
> written yet?
> >
> > If not, then I will consider switching to nVidia but the problem here is
> the price, obviously. For the price only "little" higher than Nano I can
> buy Quadro M4000 but Id rather have more performance. I wonder whether
> nVidia played silly games disabling its drivers under vfio with Titan X -
> that would be a very nice option. I do not want to spend more than $1300
> per card.
> >
> > Any advice?
> >
> >
> > B.
> >
> >
> > PS Feel free to cite me to AMD support, they may possibly lose my brand
> loyalty due to broken PCIe reset - I'm just too tired of not being able to
> reliably reset my VMs. Even if I need to pay more for worse performance.
> >
> > _______________________________________________
> > vfio-users mailing list
> > vfio-users at redhat.com
> > https://www.redhat.com/mailman/listinfo/vfio-users
>
> Hi Bronek,
>
> I haven't lucky enough to try passing through a Titan X to my guest VMs,
> but I had borrowed my friend's GTX 980 Ti and it worked flawlessly. Since
> GTX 980 Ti is a slimmed down version of Titan X, it should probably work as
> well.
>
> My experience with AMD was only at R9 270X as my first GPU upgrade ever
> since my GeForce 4 MX back in my college year, :p and I picked AMD because
> at that time VGA passthrough seemed common on Xen only and Xen was not
> supporting NVIDIA card without hard modding it. As Alex had mentioned also,
> currently NVIDIA has less trouble than AMD.
>
> Beside GTX 980 Ti, NVIDIA cards that I have successfully passed through so
> far are GTX 770, GTX 780, and GTX 980.
>
> Best regards,
> Okky Hendriansyah
>
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>
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