ATI's Avivo vs. NVIDIA's PureVideo: De-Interlacing Quality Compared
by Anand Lal Shimpi on October 5, 2005 9:00 AM EST- Posted in
- GPUs
Final Words
We excluded a few of the tests from our image quality comparisons, simply because they were more focused on noise reduction and both ATI and NVIDIA did equally poorly there. Instead, we decided to focus on cadence detection and de-interlacing quality, using the tests from the previous pages.
Let's first look at how all of the numbers tally up for ATI and NVIDIA:
The subjective numbers add up to pretty much summarize our experience with ATI's Avivo at this point. While neither ATI nor NVIDIA produced a perfect solution, at this point, Avivo is definitely a step behind NVIDIA's PureVideo in terms of de-interlacing quality.
We will be keeping tabs on ATI's Avivo as its remaining, and arguably more exciting, features get implemented in later driver revisions. For now, be sure to read our technology and gaming performance coverage on ATI's Radeon X1000 line.
We excluded a few of the tests from our image quality comparisons, simply because they were more focused on noise reduction and both ATI and NVIDIA did equally poorly there. Instead, we decided to focus on cadence detection and de-interlacing quality, using the tests from the previous pages.
Let's first look at how all of the numbers tally up for ATI and NVIDIA:
| Test | NVIDIA PureVideo | ATI Avivo | |
| Color Bar/Vertical Detail | 5 | 5 | |
| Jaggies Pattern 1 | 3 | 3 | |
| Jaggies Pattern 2 | 3 | 0 | |
| Flag | 5 | 5 | |
| Picture Detail | 0 | 0 | |
| Noise Reduction | 0 | 0 | |
| Motion Adaptive Noise Reduction | 0 | 0 | |
| 3:2 Detection | 10 | 10 | |
| Film Cadence | |||
| 2:2 | 0 | 0 | |
| 2:2:2:4 | 0 | 0 | |
| 2:3:3:25 | 5 | 0 | |
| 5:5 | 0 | 0 | |
| 6:4 | 0 | 0 | |
| 8:7 | 0 | 0 | |
| 3:2 | 5 | 5 | |
| Scrolling Text (Horiz) | 5 | 5 | |
| Scrolling Text (Vert) | 10 | 5 | |
| Total | 51 | 38 | |
The subjective numbers add up to pretty much summarize our experience with ATI's Avivo at this point. While neither ATI nor NVIDIA produced a perfect solution, at this point, Avivo is definitely a step behind NVIDIA's PureVideo in terms of de-interlacing quality.
We will be keeping tabs on ATI's Avivo as its remaining, and arguably more exciting, features get implemented in later driver revisions. For now, be sure to read our technology and gaming performance coverage on ATI's Radeon X1000 line.
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intellon - Thursday, October 6, 2005 - link
One thing about the guitar strings... Are you sure that they are artifacts and not the texture of the guitar strings? I do agree with one thing, they kinda look extreme...TheSnowman - Friday, October 7, 2005 - link
It is an acoustic base guitar and those do tend to use some pretty massive copper wound strings, but yeah I don't see anything that looks like interlacing artifacts in those shots.Regardless, thanks for the update Anand and I'll check back to see how things turn out. The next card I buy will most likely be for my media center so de-interlacing quality is on my priority list.
TheSnowman - Wednesday, October 5, 2005 - link
I don't follow, the text at the bottom which the test askes to be compared defiantly doesn't show any interlacing artifacts in the posted pics while compression artifacts are mostly in the top right of the image and on the hands. The text does look a bit sharper on Nvidia, but best I can tell that is just from appling a sharpening fliter as that seems to be pretty obviously the case in the last shot with the fingers on piano keys and the slight shifts in geometry than can be seen there.Also, since the compression artifacts only appear in the first ATI shot, I can't help but wonder if that came about from downsampling as the jpg to under 40mb which nearly a quarter of what a full quality jpg of that resolution would be. Regardless, I am curious to see any further explnation of de-interlacing issues with the new r5xx chips as I would hate to try and upgrade my media center card only to wind up with worse de-interlacing than on my current r420 based card.
Anand Lal Shimpi - Wednesday, October 5, 2005 - link
The text itself is fine, it is the background image where the interlacing artifacts are seen. I'll see if I can get a better screen grab tonight.Take care,
Anand
Anand Lal Shimpi - Thursday, October 6, 2005 - link
Apparently ATI isn't seeing what I'm seeing, so the issues may have been a driver problem, I will update you guys as soon as I have a driver/fix for the situation.Take care,
Anand
vailr - Wednesday, October 5, 2005 - link
Newer driver version?Ati Catalyst 8.18 beta:
http://www.station-drivers.com/forum/viewtopic.php...">http://www.station-drivers.com/forum/viewtopic.php...
Live - Wednesday, October 5, 2005 - link
I would if I could. Quit teasing us and give as the real deal, lol.
cirrhosis - Wednesday, October 5, 2005 - link
INQ has benchies already. Not a surprise. Cards are matched.Hacp - Wednesday, October 5, 2005 - link
GRAKK!cirrhosis - Wednesday, October 5, 2005 - link
Interesting. Here's hoping that ATI improves on what they've started. Looking forward to the comoing months and what they bring.