Both monitors support up to 75Hz and FreeSync.
1080p on 34" ultrawide might be too pixelated for some users. Pixel density is equivalent to normal(16:9) 1080p 27" monitors.
29" LG 29WK600-W IPS HDR10 Ultrawide LED Monitor with Speakers $263.20
34" LG 34WK500-P IPS Ultrawide LED Monitor $359.20 $319.20
Original PCOMP 20% off Sitewide at Computer Alliance on eBay Deal Post
1080p and HDR10! I didnt know this was possible :S