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Old 22nd January 2019, 19:51   #54401  |  Link
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Originally Posted by Sunset1982 View Post
Hey guys, I will do a rebuild of my two pc's. one for gaming and one for htpc use wirh an lg c8 oled tv. therefore I got a rx vega 56 and a gtx 1070. what card would you guys prefer for htpc use? are there any know driver problems with the latest nvidia drivers in terms of 23,976 and custom resolution, hdr switching or any other known issues?
This would actually be a great opportunity for you to test AMD 10-bit output with your OLED. 12-bit output with Nvidia shows some nasty banding, which is why 8-bit output is recommended for both LG 7 and 8 series. I'd be very interested to see if 10-bit shows that same banding.
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Old 23rd January 2019, 02:53   #54402  |  Link
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This would actually be a great opportunity for you to test AMD 10-bit output with your OLED. 12-bit output with Nvidia shows some nasty banding, which is why 8-bit output is recommended for both LG 7 and 8 series. I'd be very interested to see if 10-bit shows that same banding.
Is the banding only with LG and Nvidia, or 12bit in general..

AMD using dxva2 native has massive banding for me, copy back fixes the banding. (RX 580)
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Old 23rd January 2019, 02:53   #54403  |  Link
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Nvidia drivers will vary per release. Some do have issues with custom resolutions and HDR switching, but others don't. 12-bit custom resolutions simply do not work with madVR, but may work with the Custom Resolution Utility (CRU).

I don't know of anyone who uses the RX Vega 56 with madVR. You should try both and report back on the performance of the Vega 56.
WHICH Nvidia Driver is the Recommended, that Madshi is developing on ??
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Old 23rd January 2019, 02:54   #54404  |  Link
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the usual chroma test image should do.

or you just press control+shift+altf12 until it shows Cr or Cb after that you can press control+shift+alt+t to toggle deinterlancing the image should get very soft and should move a around a bit.

for the fairest comparison make sure both use the same chroma scaler.
SO, if the CPU of the pc can't handle h265 decode, we should use dxva Copyback and dx11 ?
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Old 23rd January 2019, 03:42   #54405  |  Link
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yes is was repeated over and over again to not use DXVA native if you don't have too.
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Old 23rd January 2019, 04:23   #54406  |  Link
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Originally Posted by tp4tissue View Post
Is the banding only with LG and Nvidia, or 12bit in general..

AMD using dxva2 native has massive banding for me, copy back fixes the banding. (RX 580)
I've never had the chance to test with an AMD GPU, but I'm assuming the issue is with the display and 12-bit input in general.
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Old 23rd January 2019, 04:35   #54407  |  Link
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Considering a used 1070 or 1080 right now.

Is the additional power much greater than a 1060, (FOR MADVR, I don't play games.)

I already own a 1060 for the kitchen pc.

1060 priced ~$160 used
1070 ~$250
1080 ~$400


What extra performance setting (MADVR) can be reached by the 1070/ 1080..
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Old 23rd January 2019, 04:49   #54408  |  Link
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Up to about 100W depending on how you push it. I use a 460W with no issues on an overlocked 1080 with Ryzen 1700/16GB.
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Old 23rd January 2019, 04:56   #54409  |  Link
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Up to about 100W depending on how you push it. I use a 460W with no issues on an overlocked 1080 with Ryzen 1700/16GB.
Hahaha.. No I mean't MADVR performance.. Cranking up settings ..

What can a 1070/1080 crank up that a 1060 could not.
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Old 23rd January 2019, 05:03   #54410  |  Link
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HDR and luma/chroma NGU, you get a quieter card for content that doesn't need a lot of work.
I use a Full HD screen so it's all NGU up and SSIM2D down for me. I barely bother with additional sharpening.
Basically just ratcheting up the settings a notch over what you already got.. My 1080 was a nice upgrade over my 1060 6GB.. and I only use it for madVR at this stage.
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Old 23rd January 2019, 06:19   #54411  |  Link
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I use a Full HD screen so it's all NGU up and SSIM2D down for me. I barely bother with additional sharpening.
I'm using gtx 1060 on FHD also. What chroma are you using? And what actually does activate SuperRes filter on chroma upscaling ? I select it on Jinc and it doesn't cost much on performance, maybe 2ms.
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Old 23rd January 2019, 09:11   #54412  |  Link
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I went with NGU AA medium/High depending on what profile activated.

Super Res is is an image enhancement algorithm which does the following.

Calculate an initial guess (using a different upscaler)
Downscale and calculate differences with original image.
Scale those differences to the final size
Improve guess by:
Softening the image
Subtracting differences with the original image
Sharpening (optional)
Removing aliasing (optional)
Removing ringing (optional)
Repeat steps 2-4 several times.

Judge for yourself if you like the results, I've never felt I've required it, especially for chroma.
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Old 23rd January 2019, 09:19   #54413  |  Link
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I'm pretty sure that most if not all users thought Super Res was detrimental when used with NGU. Correct me if I'm wrong please...

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Old 23rd January 2019, 11:00   #54414  |  Link
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Originally Posted by QBhd View Post
I'm pretty sure that most if not all users thought Super Res was detrimental when used with NGU. Correct me if I'm wrong please...
Since we are here, can I ask you guys what settings (luma, chroma, enhancement, etc) you use to double 1080p / 720p content? Thanks
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Old 23rd January 2019, 11:27   #54415  |  Link
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Originally Posted by QBhd View Post
I'm pretty sure that most if not all users thought Super Res was detrimental when used with NGU. Correct me if I'm wrong please...
Most users don't use it, can't say I ever would either. Not required IMO.
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Old 23rd January 2019, 13:30   #54416  |  Link
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I went with NGU AA medium/High depending on what profile activated.

Super Res is is an image enhancement algorithm which does the following.
Thank you for infos. With NGU it looks not good, but I'll compare between Jinc with and NGU without it.
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Old 23rd January 2019, 13:34   #54417  |  Link
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Please do your research into chroma before saying it's "not good" the standard and AA variants of NGU are known to be the best chroma upscalers along side Jinc and a few others. Your preference may be sharp scalers.. Personally I prefer natural results.
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Old 23rd January 2019, 13:49   #54418  |  Link
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Please do your research into chroma before saying it's "not good" the standard and AA variants of NGU are known to be the best chroma upscalers along side Jinc and a few others. Your preference may be sharp scalers.. Personally I prefer natural results.
What I mean is that using SuperRes with NGU does not look good. I just want to compare SuperRes with Jinc chroma and the NGU chroma (AA or Sharp).
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Old 23rd January 2019, 14:13   #54419  |  Link
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it is highly recommended to not use super res with NGU. it's just how these filter work they don't like each other.
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Old 23rd January 2019, 14:57   #54420  |  Link
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WHICH Nvidia Driver is the Recommended, that Madshi is developing on ??
There are dozens of drivers that "work." Avoid any that don't work for your needs.
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