Rocket-X vs GPU

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Paul Russell

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Rocket-X vs GPU

PostFri Oct 11, 2013 10:26 am

I have the full version of Resolve, a Cubix Xpander with 2 GTX Titans in it and a GTX 580 in the main machine (Windows). I currently run a Red Rocket as well.

With the new Dragon footage not supported on the old Red Rocket, and a new Rocket-X at $5,000, I'd like to think about alternatives. I could easily add 2 more GTX Titans (or similar) for far less than the cost of Rocket-X, but performance can't suffer.

I'd be interested to hear from anyone from BlackMagic about whether the GPU debayering in Resolve 10 will allow me to grade and transcode in Resolve without a Rocket-X yet still see 25fps at a decent resolution. Is this possible?
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Radman

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Re: Rocket-X vs GPU

PostFri Oct 11, 2013 10:42 am

Interesting post Paul.
I'm looking at something similar.
Radman.
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waltervolpatto

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Re: Rocket-X vs GPU

PostFri Oct 11, 2013 3:43 pm

In my experience the RR is good for previewing, but the debayer is a bit more noisy compared to the CPU/GPU ones...

I'm curious to hear an answer as well..
Walter Volpatto - C.S.I.
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Paul Steinberg

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Re: Rocket-X vs GPU

PostSat Oct 12, 2013 3:09 pm

Is the new Rocket-X even supported in Resolve 9/10? I have one on order but not harassing Red for shipping time until I'm sure it is supported.
Paul Steinberg csc
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AndreasOberg

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Re: Rocket-X vs GPU

PostSat Oct 12, 2013 5:53 pm

Well right now the SDK from Red doesn't support GPU debayering so a graphics card shouldn't do much here right now. However hopefully Red will release the new SDK that supports GPU acceleration and then some Titans may be a better investment.
I would expect it to take a few months before we see the new SDK, maybe as much as half a year.

Best wishes
/Andreas
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Paul Russell

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Re: Rocket-X vs GPU

PostTue Nov 12, 2013 5:22 am

RedCine-X 21 is now through several stages of beta and handles the debayering very quickly on one Titan. On 5K footage it's faster than my standard Red Rocket.

Any news yet on when Red might release the SDK to BM?
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Rohit Gupta

Blackmagic Design

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Re: Rocket-X vs GPU

PostTue Nov 12, 2013 6:43 am

Paul Steinberg wrote:Is the new Rocket-X even supported in Resolve 9/10? I have one on order but not harassing Red for shipping time until I'm sure it is supported.


Rocket-X is supported on Mac and Windows on Resolve 10.
Rohit Gupta

DaVinci Resolve Software Development
Blackmagic Design
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Eric Camp

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Re: Rocket-X vs GPU

PostWed Jan 15, 2014 7:41 pm

Rocket-x is supported in resolve only or is it also supported in Resolve lite?
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Clark Fable

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Re: Rocket-X vs GPU

PostFri Feb 28, 2014 9:29 pm

What does the Rocket-X do that a normal GPU (like a Titan) can't?
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Ivan Tanaskovic

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Re: Rocket-X vs GPU

PostFri Feb 28, 2014 11:37 pm

I think, absolutely nothing! Even worse, I think that new rocket-x IS actually GPU..
Did anyone took cooler of the Rocket-X to see what chip is debayering under the hood?
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Juan Salvo

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Re: Rocket-X vs GPU

PostFri Feb 28, 2014 11:45 pm

waltervolpatto wrote:In my experience the RR is good for previewing, but the debayer is a bit more noisy compared to the CPU/GPU ones...

I'm curious to hear an answer as well..

Worth noting RR is different than RR-X.
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Juan Salvo

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Re: Rocket-X vs GPU

PostSat Mar 01, 2014 2:44 am

Clark Fable wrote:What does the Rocket-X do that a normal GPU (like a Titan) can't?

5K full res premium in real time.
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Wayne Steven

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Re: Rocket-X vs GPU

PostTue Jun 13, 2017 11:35 pm

Any advancement on this with alternatives to the red rocket x, how latest resolve speeds up gpu debayering and rendering, and what chip the red rocket uses? I'm interested in configuring a system that can do a maximum if 8kp60 16 bit maximum red data rate real time, full res. That should do me for the next 5-10 years on whatever 8k camera.

Another issue is, how does prores use go on windows and Linux these days?
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Andrew Kolakowski

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Re: Rocket-X vs GPU

PostWed Jun 14, 2017 6:10 pm

Clark Fable wrote:What does the Rocket-X do that a normal GPU (like a Titan) can't?


Rocket-X internally is most likely an AMD GPU (maybe with some other dedicated chip) with special code inside. As far as I can tell RED SDK does support GPU debayering now- this is the main difference compared to old times.
There are 2 things which Rocket-X does:
- debayering
- JPEG2000 decoding

and when you use GPU then decoding is done on the CPU (that's why you need and see e.g. 18 cores busy) and debayering on GPU. What slows down whole process is JPEG2000 decoding. Because it's wavelet based when you switch to 1:2 res decoding power demand is way lower, so suddenly everything works in real time. New GPUs like Titan etc should have no problem with debayering part (even at 6K)- it's JPEG2000 decoding which is bottleneck.

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