I picked up the five pack of OPI's Best of the Best, which included a sample of Russian Navy. As I already had Russian Navy Suede, I HAD to do a comparison!
From top to bottom these are:
Russian Navy Suede
Russian Navy with Deborah Lippmann Flat Top
Russian Navy Suede with Seche Vite
Russian Navy with Seche Vite (which it really didn't need - this baby is SHINY!)
Both applied beautifully with full opacity achieved in two coats. Russian Navy Suede dried almost instantly (not that surprising for a matte), but was still super easy to apply.
Having said that, the only other thing these two have in common is the name. I'm really puzzled as to why OPI named the suede version as it did - they have NOTHING in common! Russian Navy original is deeper with no shimmer at all, while RN Suede is more of a denim blue with tons of shimmer that I have to admit, looks amazing with the Seche Vite on top to bring it out.