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Using Nvidia and Radeon GPUs together for Davinci Resolve?

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Doru Ondun
Using Nvidia and Radeon GPUs together for Davinci Resolve?
on Jan 13, 2013 at 1:38:05 am

I'm new to this forum and also for color grading.

I'm a PC user, and I'm going to buy a new system. But I saw that DaVinci needs 2x GPUs for monitoring (UI) and processing (CUDA). But I don't have a budget to buy a second GPU. Also I don't want to use the Lite version, because I'm going to work with 2K or 4K sequences.

I'll buy a Nvidia GTX670 for CUDA, but can I use my old GPU (ATI Radeon HD4870) for monitoring?

I also have another question. As I said before I have a low budget right now. So should I buy Intel i5 3570 or i7 3770 CPU? As you see, those are non-"K" versions, because I won't mess with over clocking stuff.

And one more question. Should I buy a motherboard with a DisplayPort or ThunderBolt for future investment (just for using ThunderBolt HardDrives)? Also I heard that I can't use a ThunderBolt HardDrive via DisplayPort. Am I right?

But my main concern is about using different brand GPUs togerher. Btw are they compatible with Davinci Resolve?

Regards,
Doru.


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Rohit Gupta
Re: Using Nvidia and Radeon GPUs together for Davinci Resolve?
on Jan 13, 2013 at 5:32:35 am

Mixing ATI/NVIDIA on PC platforms is not a good idea. Just drop the ATI card and get the 670/680 with as much GPU RAM as possible. You can use the same GPU for both GUI and processing.


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Doru Ondun
Re: Using Nvidia and Radeon GPUs together for Davinci Resolve?
on Jan 13, 2013 at 10:29:23 am

I will buy the GTX670 for mow, 680 is an expendive option for me.

So mixing ATI/NVIDIA GPU's is not possible, right?

If I buy a cheap NVIDIA card just for the GUI, is it going to comfort my GTX670?


BTW what about the i5 and i7 processor options, which one should I buy? Is i7 worth for extra $100?


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Al Arnold
Re: Using Nvidia and Radeon GPUs together for Davinci Resolve?
on Jan 13, 2013 at 6:35:38 pm

It is possible to mix ATI and Nvidia cards on the same system, if not recommended. I would invest in a cheap Nvidia GUI card though. Just buy a used one on eBay or NewEgg. Also, definitely invest in the nicer CPU. It will really help with RAW decode. Thunderbolt is good although far from necessary on a PC based system. (Remember you can expand your system with PCIe expansion, and RAID via thunderbolt is far from cost effective on a PC based system right now. You would probably be best sticking with the recommended ASUS motherboards for resolve anyways.


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