Ericbowen
Forum Replies Created
-
The GPU accelerated Debayering works for raw codecs so far including all the R3D 4k, 5K, and 6K along with DNG. 5K 98 frame media plays back at 24 or 60 frame realtime at full resolution preview with the correct setup. Even 6K can on a few systems. The Red Rocket card though lowers the decoding load on the CPU to a fraction of what it is normally. This allows far more complex timelines or FX work. Along with that the performance in Davinci is significantly effected by the rocket with R3D currently. 32GB of ram though is not enough to for 4K+ media and 2x GPU’s. I suggest atleast 64GB if 2 video cards are used.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
8GB is definitely low. What GPU does this laptop have and what driver version?
Eric-ADK
Tech Manager
support@adkvideoediting.com -
-
16GB of ram is really minimum for Premiere CC with GPU acceleration and especially with AE. AE has a huge memory profile at this point so 32GB is really where you need to be for a Quad core system. Who ever told you otherwise has little to no experience with Adobe and HD+ media.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
That resolution would likely work ok with 12GB of ram but below that your pushing the performance degradation. Also keep in mind the more cuda cores available in the GPU the exponential increase in the amount of system ram required to use them. If the ram is not available those cuda cores sit idle. This is because cores cannot share cache when processing different threads parallel in the GPU. This makes duplication of Data buffers for GPU processing very common which is why the ram cache exponentially increases.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
I have used resolve and dealt with clients using resolve where it uses far more than that for 4K+ and that is with 3GB Vram cards. Resolve will use the caching models for number of frames based on the system ram available for the application player and what is required for the GPU acceleration to cache from system ram to vram. Frame rate of media will also play into this. 1 project does not equate to all resolve will use. The caching model changes as projects change caching requirements along with frame rate changes. 5K media will cache differently than 4K media. 24GB of ram is what you want atleast for a 6GB card. You would also have to ask Blackmagic btw if the application ram usage also tracks the GPU acceleration usage required by the video driver? BTW ram usage now days especially in GPU acceleration applications is completely dynamic. The applications are built to try and work with in the available ram space. However there is a point where performance starts to degrade and errors have a much higher chance of occurring.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
What video card do you currently have in that Mac Pro?
Eric-ADK
Tech Manager
support@adkvideoediting.com -
A new GPU with that much ram is a complete waste with GPU acceleration. The ram space required just for the gpu acceleration alone is 1 to 2x the vram on the card and that is completely outside the application usage. If you upgrade 1 then the other needs upgraded. This is not about only using 1 application only.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
If it does it will be at reduced speed because of the PCI-E 3.0 spec. Haswell E X99 just released. Might be time to consider a new system if your looking for GPU acceleration performance increase.
Eric-ADK
Tech Manager
support@adkvideoediting.com -
Ram Profile for GPU acceleration applications is large especially with resolutions over 2K. 16GB of ram by itself is really bare minimum and will still limit the GPU acceleration performance. the 680GTX for Mac or any of the flashed video cards would help significantly but will be limited by the ram space. The CPU performance is also key to GPU acceleration so that will limit the GPU acceleration performance as well. If this workflow is going to be common at this point you really may want to consider a new system since upgrading that one for Raw is going to have limited results.
Eric-ADK
Tech Manager
support@adkvideoediting.com