David <
[email protected]> wrote:
The mother board is PCI_Express 2.0.
The cards are PCI Express 3.0
I assume that they would run but at reduced performance, which leaves the maximum resolution in question.
They should be fine running at the slower Gen2. It won't affect the maximum resolution, but might affect the maximum FPS when gaming.
(although quite possibly not, in real use)
Looks as though I may have to suck up the loss of the screen (perhaps it
can be fixed) or look for a 15" monitor.
I'd look for monitor options, then see what kind of inputs they have. Then
you know whether you need Displayport or HDMI, and what versions are expected. Then see what kind of GPU you can set. What's the budget?
Another wrinkle is that HDMI has various chroma options - 4:2:0, 4:2:2,
4:4:4 - which are about the amount of colour information sent with each
pixel brightness. 4:4:4 is 'full resolution' while the others involve some merging of colour across adjacent pixels - this tends to cause a smeary
effect especially on small coloured text (like terminal windows where you
might have red text on blue background - it ends up unreadable brown).
Going to lower chroma reduces the bandwidth, so for example you might do 4K@60Hz on HDMI 1.4, but at 4:2:2 chroma which causes the colour smudging.
If told to do 4K@30Hz it'll be able to do 4:4:4 and have clearer colours.
For nvidia stuff, most of the GTX?50 series (650, 750, etc) and above can do 4K@30Hz 4:4:4 on HDMI 1.4, and I think Displayport has a bit better support.
I don't remember when they started supporting HDMI 2.0 - that likely gives
you more options.
I get the impression AMD cards supported HDMI 2.0 earlier and even a lower
end card could do 4K with no issues, but I haven't much experience with
them.
TL;DR: look for a card with HDMI 2.0 and see if that supports what you want.
Theo
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