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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Gtx 780ti vs gtx titan

both cards are decent enough cards even though they are rather pricey at $700 and $1000 each, while amazingly neither supports 10 bit color... so I guess if they are solely for PC 8 bit video editing, rendering or gaming and you need a boat load of cuda cores instead of color accuracy and double precision, take your pick ... the GTX 780ti 3GB RAM is seriously small in stock configuration (though it does perform well in gaming benchmarks), so OEM's will likely add more RAM and custom cooling if you wait a little ... also, you might wait to get HDMI 2.0, but that might be longer timeframe like 6 months, which really really stinks waiting for NAB 2014 timeframe ... I am really impressed by the $399 AMD R290 benchmarks, but driver support and no HDMI 2.0 or 10 bit support makes me less inclined to go with consumer GPU's above $500 at this point in the release cycle for use with pro apps...
 
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John Bellari said:
both cards are decent enough cards even though they are rather pricey at $700 and $1000 each, while amazingly neither supports 10 bit color... so I guess if they are solely for PC 8 bit video editing, rendering or gaming and you need a boat load of cuda cores instead of color accuracy and double precision, take your pick ... the GTX 780ti 3GB RAM is seriously small in stock configuration (though it does perform well in gaming benchmarks), so OEM's will likely add more RAM and custom cooling if you wait a little ... also, you might wait to get HDMI 2.0, but that might be longer timeframe like 6 months, which really really stinks waiting for NAB 2014 timeframe ... I am really impressed by the $399 AMD R290 benchmarks, but driver support and no HDMI 2.0 or 10 bit support makes me less inclined to go with consumer GPU's above $500 at this point in the release cycle for use with pro apps...
Click to expand...
With Resolve you're likely using a BMD card for the 10 bit output to however you're monitoring, so it doesn't matter if your graphics card supports 10 bit out or not.
 
Jaakko Rinne said:
With Resolve you're likely using a BMD card for the 10 bit output to however you're monitoring, so it doesn't matter if your graphics card supports 10 bit out or not.
Click to expand...



Question what Graphics card is recomended if I want 10 bit 4k output trough HDMI, I do not see that I need all the features of a decklink extreme that is also I capture card, I only want something for display... So there must be a cheaper version the then decklink, or no?

About to test a Geforce 670 GTX right now, but me guessing it's only 8 bit out trough the HDMI, or?
 
Björn Benckert said:
Question what Graphics card is recomended if I want 10 bit 4k output trough HDMI, I do not see that I need all the features of a decklink extreme that is also I capture card, I only want something for display... So there must be a cheaper version the then decklink, or no?

About to test a Geforce 670 GTX right now, but me guessing it's only 8 bit out trough the HDMI, or?
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My understanding is that with Resolve the only choice for 10 bit output (on OS X and Windows) is using a Decklink card's SDI out. Could be different for Linux, but I'm not familiar with that.
 
Jaakko Rinne said:
My understanding is that with Resolve the only choice for 10 bit output (on OS X and Windows) is using a Decklink card's SDI out. Could be different for Linux, but I'm not familiar with that.
Click to expand...

so even the deck link extreme does not output 10 but trough the HDMI?

/b
 
The Decklink cards do 10bit and 12bit over HDMI. However, the Decklink 4K is limited to 8bit at UHD/4K resolution as that is the limitation of the HDMI specification and will continue being a limitation with HDMI 2.0. :(

Resolve requires a BlackMagic I/O / monitoring device to output greater than 8bit color. Just because you have a video card like a Quadro that "supports 10bit output", it's still up to the application to make use of it.
 
Jeff Kilgroe said:
The Decklink cards do 10bit and 12bit over HDMI. However, the Decklink 4K is limited to 8bit at UHD/4K resolution as that is the limitation of the HDMI specification and will continue being a limitation with HDMI 2.0. :(

Resolve requires a BlackMagic I/O / monitoring device to output greater than 8bit color. Just because you have a video card like a Quadro that "supports 10bit output", it's still up to the application to make use of it.
Click to expand...

Are you kidding me is hdmi 2 only 8 bit at uhd? Hoping to be able to run a uhd screen at 8bit and a 1080 at 10bit. But its not even possible to work in 4k timeline and output 1080p yet.... With decklink extreme 4k.
 
I guess the 6gb ram and full dual precision on the Titan still makes it tops for resolve. Even when the ti ships with 6gb
Guess I can crack open the two I was about to return...
 
Paul, are there benchmarks in Resolve for these cards yet?
 
No I'm just talking generalities. For 4k+ and temporal NR and ofx and optical flow it seems the bigger ram and better math of the titan will trump just pure core speed of the ti. even when it gets more ram
 
This is not correct, HDMI 2.0 definitely supports higher than 8bit.

HDMI 2.0 has 4 levels.

Level C - 4096x2160 30fps at 4:2:2 10bit, 4:4:4 8bit
Level B - 4096x2160 60fps at 4:2:0 8bit
Level A - 4096x2160 30fps at 4:4:4 12bit, 60 fps 4:2:2 12bit

Level A support requires a new signal processing chip that supports 18GB of bandwidth.
As far as I know all current 2013 hdmi devices use the older 10.2GB chipset with the exception of the Panasonic 4k LCD which I did not have much luck with.

However you should be able to feed a 10bit 4:2:2 4k 24fps signal to all hdmi 2.0 capable units. The 8bit 4:2:0 that is being thrown around is only for 60fps and only if using the older chipset.
Most if not all 4k TVs are using 10bit panels, processing could truncate the signal to 8bit, but the panel is not the limiting factor.

In theory BM could update the 4k extreme to support 4k/30fps/10bit hdmi, but compare a decklink 4k with a decklink extreme 3d+ and you can almost count on a new model decklink extreme 4k+ that you will have to buy.


Jeff Kilgroe said:
The Decklink cards do 10bit and 12bit over HDMI. However, the Decklink 4K is limited to 8bit at UHD/4K resolution as that is the limitation of the HDMI specification and will continue being a limitation with HDMI 2.0. :(

Resolve requires a BlackMagic I/O / monitoring device to output greater than 8bit color. Just because you have a video card like a Quadro that "supports 10bit output", it's still up to the application to make use of it.
Click to expand...
 
I dont think resolve uses much if any FP64 calculations, a 780 vs Titan is marginal difference. So a 780 Ti should be a significant boost over the Titan for a lot less $$.
I'd like to know R9 290x vs Titan. In terms of compute peformance it should be faster at half the cost, but it boils down to how well resolve is optimized for open cl so far.


Vram is the problem. Any temporal processing multiplies the vram load.
With 4gb vram, I can do 1 frame NR at 3996x2160 timeline from 5120x2700 source, Full decode. I run out of vram with 2 frame NR.
No NR, optical flow speed change is using about 3.5 gigs

Nothing else really seems to impact vram usage much - OFX, node, scaling, etc.

At 1080p your right at about 3GB with 2 frames NR. Which does not make a ton of sense to me, as vram should be primarily dictated by your source footage resolution.
I guess NR and optical flow is processed at your timeline resolution and not at source clip resolution which is not great.


Paul Provost said:
I guess the 6gb ram and full dual precision on the Titan still makes it tops for resolve. Even when the ti ships with 6gb
Guess I can crack open the two I was about to return...
Click to expand...
 
Just ordered a GTX 780 SC from EVGA. Still heavily disappointed in a 3GB only option.
 
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