I last upgraded my system at the end of 2012, and at the time it seemed nVidia was the only real choice GPU wise. Even at that, though, GPU rendering was limited in various ways compared to CPU rendering.

Anyway, I'm presently contemplating my GPU, and was wondering what the current state of things is. Here are a few questions:

1. Is nVidia still the better choice for Poser users? (I'm contemplating the GTX 1060.)
2. What disadvantages does GPU currently offer versus CPU?
3. Any thoughts of the benefits of a 6GB vs 3GB version of the video card?

Anything else relevant to the current GPU situation would also be welcome.

For what it's worth, my current GPU is a GTX 550 Ti.

Thanks in advance for your thoughts.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3