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#51642 | Link |
Kid for Today
Join Date: Aug 2004
Posts: 3,477
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Gonna make the jump to 2160p and my 7850 won't hold a candle to it, FWIR here Polaris isn't too happy about NGU so how about a 80 bucks refurb R9 380 with 6 months warranty?
I only care about mVR so benchmarks appear to be irrelevant for mVR purposes? 7850 is da bomb with 13.12 drivers @1080p, I want the same but for 2160p and not for 200 bucks either if any possible ![]() Any advice fellas? ![]() |
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#51643 | Link |
Registered User
Join Date: Aug 2016
Posts: 1,220
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dont think that card is a true 4k card, you'll only get a sub 60hz desktop at 4k, fine if you're not using your HTPC for anything else but I wonder if you'll have other issues with it not being a full 4k card with the increased HDMI bandwidth, you'll need to look into that.
you could pickup an RX 460 for about 60, you'll get NGU sharp low around 30ms rendering, that What I was getting prior. EDIT pretty sure its HDMI 1.4 spec, unless there was a late HDMI 2.0 version? Last edited by mclingo; 5th July 2018 at 21:40. |
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#51645 | Link | |
Registered User
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,098
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Quote:
![]() I suppose you have enough GPU power for very high for chroma but even using low for chroma upscaling you cannot use NGU very high for image upscaling? Also the hardware decoders are not as good, 4K 10 bit HEVC takes a lot of CPU if you have to use software decoding.
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madVR options explained |
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#51646 | Link | |
Registered User
Join Date: Mar 2009
Posts: 3,400
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Oh Asmodian beat me to it. Good man. |
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#51648 | Link |
Registered User
Join Date: Dec 2014
Posts: 1,127
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It’s a card that could make you take up video games. With games, it sometimes outperforms the GTX 1060. It’s not surprising that it has enough power to handle madVR.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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#51649 | Link |
Registered User
Join Date: Jan 2012
Posts: 94
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Perhaps with crappy subsampling and at 23,967Hz. Considering a large portion of this thread is about how practically none of commercially available screens are able to properly display >8bit colors and reduced picture quality because of subsampling I would count this as irrelevant, but that is just my opinion. Oh and I almost forgot the potential for flickering when the camera is panning if the display isn't able to properly display 23,976Hz since higher refresh rate isn't possible at this settings.
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#51652 | Link |
Registered User
Join Date: Oct 2012
Posts: 6,842
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it'd depends on how you look at it 8/10 encoding.
it'S 10 vs 18 or 8 vs 14.4. sample hold displays don't flicker end of story i know what you are talking about "judder" but 60 hz doesn't fix this it's madVR fixing this issue. and mybe it was 24/25 only. and to be fair the HDMI spec is not crystal clear. 4:2:0 is only part of 50/60 HZ and doesn't work with lower refreshrates. and 10 bit or higher may only work at HDMI chips with HDMI 2.0 "support" like nvidia has. not here to promote HDMI 1.4 HDMI 2.0 is clearly better and it would be sad if this isn't the case but this doesn't change that devices try to run in a mode that has the bandwidth of HDMI 1.4. |
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#51654 | Link | |
Registered User
Join Date: Aug 2016
Posts: 1,220
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Quote:
I think i'll drop to high though anyway as the card gets a tad noisy with the weather the way it is right now, it was 30degrees in my lounge last night, I could fry an egg on my HTPC !.. Thanks all for your responses. |
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#51656 | Link |
Registered User
Join Date: Dec 2007
Posts: 620
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Any, advice on MadVR / nvidia settings and versions for JVC X7500? After trying different combos of versions and settings I can't seem to find a combo that:
- Minimises Repeated Frames (eg custom modes or a nvidia version that is close) - NVidia Settings that stick for RGB 12-Bit for both UHD@23.796 / YCbCr422 for UHD@50/60p (or just RGB 8-Bit as I only have the one UHD HDR BD @ 60p) - Windows HDR that does not keep turning ON when the video finishes playing and you are back to the desktop If the above can not be done, should I try HDR to SDR conversion in madVR, or... just use YCbCr422 for all resolutions, or.... ? Currently I'm also "stuck" on madVR V92.4 (that comes bundled with JRiver) as the most recent madVR versions have a bug where Menu Item Text can be drawn off screen.... I've a 1070 on this HTPC. |
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#51657 | Link | |||
Registered User
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,098
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However, this is assuming your projector does not use 4:2:2 internally. Use the http://madshi.net/madVR/ChromaRes.png. It is 1920x1080, view it at 100%, no zoom/resize. Quote:
Quote:
![]() However, I would still much rather send my TV 8 bit RGB over 12 bit 4:2:2, unless it was in a mode that used 4:2:2 processing internally, even for HDR. Using 4:2:2 blurs two out of three image planes to 50% of their resolution horizontally. This damages the two chroma planes a lot. Humans do see color weirdly but this is still worse than well dithered 8 bit. The source is 4:2:0 but madVR has very good chroma upscaling, especially with a 1070. ![]()
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madVR options explained Last edited by Asmodian; 7th July 2018 at 00:42. |
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#51659 | Link |
Registered User
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,098
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![]() Does it use 4:2:2 internally if you send it 12 bit RGB?
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#51660 | Link |
Registered User
Join Date: Dec 2014
Posts: 1,127
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You might want to wait for the next build and try HDR -> SDR. It should be available soon and there is still room to improve.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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