Since you changed GPUs go get DDU and clean out the old drivers, install the new ones again, update and try again.
If it fails it could be one of the Apex bugs since it's fine in other games. I'm running into this issue from time to time where folk find the one game but not others crashing. Here's a google for that.
https://www.google.com/search?q=Apex+Legends+black+screen&gl=US
Hmm, seems folks are reporting that. Try those fixes before the GPU drivers.
Recently purchased an rtx 2070 about a month ago. haven't had any issues with my pc and with the new GPU installed..
just recently I've been playing apex legends and about halfway into the game say 10 to 15 minutes my screen will go black is if the monitor shut off.. then it will say no signal. I can hear my ingame still working and talk on Teamspeak. But after about 3 minutes one of my teammates in Teamspeak told me i dropped from the game.. Not really sure what's going on.. Please help. NO issues running battlefield V btw. Also i dont have the issue when just watching youtube and or surfing the web.
https://imgur.com/a/NL2RuWO
bought a brand new monitor to see if this was the issue it is not..?

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