For several years I used a GeForce GT710 2GB based graphics card because there was no application for me that required a better graphics card.
But the great v1.6 of Gyroflow forced me to think about replacing the graphics card.
In total, Gyroflow can use the GPU for three stages: video decoding, video processing, video encoding.
Note that video encoding with GPU is faster, but it can produce a worse result than CPU. But you can try to compensate it by increasing the bitrate.
On the GT710, GPU video decoding and GPU video encoding were slightly faster than CPU, but GPU video processing was slower than CPU! When I tested videos from my Sony a7c (4K@25fps), I could only get 2-3fps video rendering (GPU-CPU-GPU stages). This is very slow for practical use.
When I temporarily replaced the GT710 with a Radeon HD7770 card, I got 6-10fps (GPU-GPU-GPU stages). This is much better. But the HD7770 card only has 1GB of memory, which is generally not enough (even compared to 2GB).
So I bought another graphics card. This is a used Radeon RX480 8GB based card. I chose a Radeon card because of the problems with Nvidia drivers.
With the RX480 card I get 25+fps video rendering in Gyroflow (GPU-GPU-GPU). This is good enough for me.
And I have no problems with VirtualBox.
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