Date: Mon, 28 Jun 2021 10:04:55 -0700 From: Chris <bsd-lists@bsdforge.com> To: Greg V <greg@unrelenting.technology> Cc: Robert Huff <roberthuff@rcn.com>, x11@freebsd.org, questions@freebsd.org Subject: Re: Old NVIDIA card, new FreeBSD = failure? Message-ID: <7a6c8bac11a91dff3b3fc4a1c6782f82@bsdforge.com> In-Reply-To: <C46C9420-7745-434D-B408-288B0BCFEBBA@unrelenting.technology> References: <uZ6VybGvR6ddjj1CVAd0CMNpgvfbc65oLMD5y8r7OPur5j7flNkWuLoxJAueOHkyAJoOW68fE1zpTrvk18VPxSU3drao03Lv0n8UM6ge3y0=@protonmail.com> <36919.1624649280@segfault.tristatelogic.com> <24790.13300.679983.900189@jerusalem.litteratus.org> <778F35B8-10F3-4D4D-8200-A235FD9A0762@unrelenting.technology> <24791.42526.208238.436624@jerusalem.litteratus.org> <C46C9420-7745-434D-B408-288B0BCFEBBA@unrelenting.technology>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --=_4aa19194b6a7f4040545d281b291d390 Content-Type: multipart/mixed; boundary="=_c1d6523cb049890b2713a83e906daa56" --=_c1d6523cb049890b2713a83e906daa56 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed On 2021-06-27 04:26, Greg V wrote: > On June 26, 2021 10:11:42 PM UTC, Robert Huff <roberthuff@rcn.com> wrote: >> >> Greg V <greg@unrelenting.technology>: >> >>> Robert Huff <roberthuff@rcn.com>: >>> >>> > (For anyone in my position: I _think_ the RX 460 and above >>> >support GCN 2.1, which is what I _think_ is the bottom-end >>> >specification. Cards matching this number seem to start at about >>> >US $50.) >>> >>> GCN is the name of the GPU architecture, not something a GPU >>> "supports".. >> >> Got that; the "support" is from the software. >> I have two conflicting desires: >> a) I want to run modern applications ... >> on the latest stable version of X ... >> using an actively maintained and >> improved version of amdgpu/drm ... >> working with reasonably high-performance hardware. > > Yes, all you need is a GCN GPU. Avoid the really old pre-GCN (TeraScale and > older) > architectures and you'll be fine. > >> b) I have a very limited budget, and would ideally like to be >> able to use this on older systems - say ones with a PCIe 2.0 >> expansion slot. > > No conflict here: PCI Express generations are all backward and forward > compatible. > You can run the newest gen4 cards in gen2 slots just fine (obviously at gen2 > bandwidth). > > Similarly it's all compatible between different lane counts, e.g. you can > shove an > x16 card into an x4 slot (if it's not an open ended slot.. it can be made > open-ended with a rotary tool :D) You can also paint contacts on the card to enable/disable "features" as required for a given scenario. :D. 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