is that likely to bring anything new to this issue??
ie more grunt or cooler or less power usage??
Unfortunately you are wrong. You need to read Tong Chia's post more carefully. Let me explain more. Playing back 1080p24 contents with LAV Source Splitter + LAV CUVID Decoder + madVR is pretty easy with any decent NVIDIA GPU. So our main concern is playing back 1080i60 contents with these filters (there are lots of music concerts/documentaries interlaced BDs besides HDTV programs).
- CPU: Pentium G840 (2.80GHz 2C/2T), Core i3-2100 (3.10GHz, 2C/4T)
- MB: ASRock H61M U3S3
- Memory: DDR3-1333 2 x 2GB
- GPU: GT 430 DDR3 1GB, GT 440 GDDR5 512MB, GTS 450 GDDR5 1GB
- HDD: WD20EARS
- Monitor: EIZO HD2452W 1080p@60Hz (with a secondary monitor connected to Intel HD Graphics when necessary to take a screenshot)
- Test clip: Verdi, La Traviata (AVC 1080i60, DTS-HD MA), Act 1, the first 2 minutes.
- LAV Source Splitter 0.29, LAV CUVID Decoder 0.80 (video mode), madVR 0.65 (the default settings, except for switching between full screen exclusive and windowed modes [exclusive is the default])
Film mode vs. Video mode; Film mode is not a correct mode
In Settings of LAV CUVID Decoder, you will see two modes for deinterlacing:
- 25p/30p (Film)
- 50p/60p (Video)
This specifies the output frame rate after deinterlacing is done on 60i. In Film mode, you will see a nice film-like effect (i.e. judders ). I am not sure how NVIDIA deinterlacer creates a 30p stream from a 60i stream, but this is not a correct mode for contents shot by video cameras (unless you prefer a film-like look whatever the source is). So select "50p/60p (Video)" (well, this is the default mode). You can see related posts by madshi and nevcairiel here at Doom9's forum.
Full screen windowed mode vs. exclusive mode; A big difference
You will see higher CPU usage and more dropped frames in the windowed mode. Exclusive mode is the way to go. Here are screenshots of GPU-Z and Task manager in each mode (on a secondary display). Pentium G840 and GT 440 GDDR5.
Exclusive mode (A screenshot can't be taken with Snipping Tool.)
GT 430 DDR3 vs. GT 440 GDDR5 vs. GTS 450 GDDR5
The number of dropped frames is displayed in the screen with madVR (Ctrl+J). So which card gives the least dropped frames at interlaced BD playback? (No secondary monitor is connected in this test.)
The number of dropped frames
G840 / exclusive 2100 / exclusive 2100 / windowed GT 430 235 368 1834 GT 440 GDDR5 1 0 24 GTS 450 2 1 31
There are too many dropped frames with GT 430 to be watchable. GT 440 GDDR5 and GTS 450 are excellent in full screen exclusive mode. None of the cards is adequate in full screen windowed mode. Processor is mostly irrelevant here.
So the conclusion is clear. The minimum GPU for LAV CUVID Decoder + madVR is GT 440 GDDR5. As for processor, a decent dual-core is enough.
madVR v0.66 improved video playback smoothness greatly.