Ultimate Vegas Machine?

[Matthew Jeschke]

Curious what GPU is currently best for Vegas? Anybody have experience with one that works great? I notice my current bottle neck on the PC build is now the GPU. I currently have a MSI Radeon 480 with 8GB of video memory (Linked below):

https://www.amazon.com/gp/product/B01M4J144F/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

I may be a second one as my machine can fit two. However, first, is there a better chipset now I should consider?