AVS Forum banner

nVidia PureVideo Decoder vs DScaler5 0.08 -- My Comparison

1439 Views 14 Replies 8 Participants Last post by  yesgrey3
Okay, I compared the two last night to see which was better, and here is what I found. My setup is as follows:

--------------------------- SETUP ---------------------------

Player: MPC 6.4.9

Post-processing: FFDshow 20060423 SSE2 & [email protected] 2

-- Avisynth: HQDN3D and LimitedSharpenFaster

-- Resize: 2x (Lanczos2, LS 1.2) for added clarity

Video Output: VMR9 Renderless

Audio Decoder: AC3Filter 1.01a RC5

Colorspace: I tried both YUY2 and YV12 colorspace, with the same results.

Display: Samsung 46" DLP via DVI.


Dscaler5 0.08 -- This gave me the cleanest, sharpest picture. The only gripe I have, however, is that there would sometimes be "microstutters" during DVD playback. I tried everything I could think of to get it to flow consistently. The seconds timer in MPC 6.4.9 would at times appear to last a little longer than they should, or be a little quicker than they should. I have no idea what could be causing this or how to fix it, or if it is even related at all to the 'microstutters' issue.

PRO: Sharp, clean picture; Colors felt more vibrant. FREE.
CON: Has trouble deinterlacing some material; may experience intermittent "microstutters" during video playback


nVidia PureVideo 1.02-196 -- There is no doubt that the nVidia PureVideo decoder is better at deinterlacing non-film material. Most DVDs that I own have no issue with DScaler5 0.08, so this isn't really much of an issue for me. I did notice, however, that the picture looks noticably softer than DScaler5. In trying to get the clearest, most detailed picture this may not be your best choice. Even with AVISynth and Denoise3D enabled, DScaler5 was still noticably more detailed, almost to the point of appearing "HD" in some cases. On the bright side, DVD playback was more fluid and I did not come across any of the 'microstutters' mentioned previously. The seconds timer seemed to be much more "on time".

PRO: More consistent fluid playback, so little to no microstutters; Does a better job at deinterlacing certain material.
CONS: Picture may be too soft for some people's taste; You have to PAY for this decoder.


My question would be this -- Is there any way to get rid of the microstutters that I experienced with DScaler5? I really would like to keep the outstanding picture quality of DScaler5, but experience the more fluid playback of PureVideo. If you have any suggestions, please let me know.

Thanks in advance!
See less See more
Not open for further replies.
1 - 15 of 15 Posts
How does this work? I downloaded version 1.7 beta4, which says to read the Readme, but there is nothing in the Readme. I have my DLP hooked up as the secondary display. Where can I read up on it?
I compared dscaler 5008 vs Powerdvd 6.0.

I used resizing Lanczos 2, 2* the dvd resolution. hqdn3d, Limitedsharpenfaster.

I took screen captures using Media Player classic, cropped the pictures and compared them.

Powerdvd was just a bit better looking.

If I wasn't comparing them side by side, they would look identical.

The deinterlacer powerdvd has is better than the one dscaler 5008 has too.

I don't work for any media company, and these views are mine alone.
See less See more
PowerDVD can't do VMR9 Renderless. And I'm not sure how on earth they would both look identical, I see a world of a difference imho. Are you sure that you were using hqdn3d and lsf? With [email protected]??? Were you drinking at the time, or smoking? ;)

Use on some film source (so deinterlacing is out of the equation) - its not a fare comparason if your deinterlacing! :)

I find it hard to believe pdvd6 decoder would produce better results.



Install reclock.

Select it as your audio renderer.

From memory, thats about all you need to do with it :)

Check the reclock forums for more info.

Its one of those things that just works :)

You'll get a little icon in the system-tray - if its green, everything is apples!


See less See more

I tested X2 and The Fifth Element.

In all there were 3 side by side comparisons.

Powerdvd looked just a bit more clear than the dscaler ones.

I don't know what you mean by 'Film source' ?
See less See more

I did 3 side by side comparisons using two dvd movies.

The Fifth Element, and X2.

The captures were cropped and pasted together for a side by side comparison.

Powerdvd was a bit better looking.

They were almost identical.
See less See more
How did you do the screen caps? What was the resolution of the screen caps?


Not trying to tell you which you should see as better or worse (personally, I don't care. Its your system and your eyes, so don't let anyone tell you what 'should' look better to you.) Just trying for a little clarity here.

Are you saying you are basing your compairisions off of stills made from screen captures while playing the movies with the different codecs? If so, I would simply comment that, imo, this is not the best way to 'audition' codecs. Even if you manage to capture identical frames from one to the next (to eliminate the possibility of getting an I frame from one and a P frame from the next, for example)

There is still the fact that static stills from a motion picture may look worse when frozen in place, but better when viewed as a fluid sequence. At least this has been my experience.

Personally, I really feel that codecs should be evaluated by watching full motion video, instead of individual frames. It is much more subjective, and itentifying actual differences is much harder, but I feel it delivers a more acurate result.

Anyway, ymmv.

See less See more
Yup - make a 2min capture of your own with sample clips from a few DVDs, and use that to compare. Static pictures are not too bad for spotting scaling and sharpness issues, but denoising effectiveness has to be judged with moving video.

Also, certain aspects of image quality acquire more importance in static images (eg sharpness), because they're much more obvious when things are paused. For example, that might be in the middle of a motion blur that looks perfect when things are moving, leading you to increase sharpness settings beyond the ideal.
Originally Posted by Vern Dias
How did you do the screen caps? What was the resolution of the screen caps?

On MPC. In the File tab. There's a button that says "Save Image".

If you open the saved image in MS Paint, it's a very large picture using the settings I've shown.

To resize the side by side pictures. Open the new picture you made with the cut, copy and paste. Just drag the edge of the picture.

In MPC. In the External filters tab. I set the dscaler mpeg 2 video decoder to prefer.

Then I set it up to use YV12. Then I took the screen captures of the movies.

Then I removed the dscaler mpeg 2 video decoder from the external filter list and put

the cyberlink decoder in as Prefer and did the screen captures.
See less See more
Believe it or not, I have also compared powerdvd to dscaler, and also thought they looked very similar. Its to bad previous builds of powerdvd were not so good, so now everyone assumes powerdvd is no good.

Honhestly I would be shocked if you can see much of a difference between the two.

With nvidia, at least I noticed colors were not quite as vibrant.
You have to download the latest stable version (1.6) just for the readme.

The readme still applies to the 1.7 beta...
1 - 15 of 15 Posts
Not open for further replies.