Using the exact launch day version with only the day 1 patch, and comparing the base consoles of PS3 and PS4, I would say that cyberpunk is buggier, I got 3 bluescreen crashes in 4 hours on the 1st day. This is somewhat of an unfair comparison though because of the specific "day 1" clause, by day 3 I'd say things have reversed. I have played many more hours in cyberpunk since then with only one blue screen crash (still many little bugs) using patch 1.04 which came out after a few days.
Skyrim, it isn't something you feel on launch day unless you're playing with a catheter, but aside from the usual broken quest line bugs and weird little things, the PS3 memory leak that caused performance to gradually get worse and worse the more you play was the vilest cancer ever. This is a PS3 thing only, true, and you probably won't notice it on launch day because it increases with hours invested, but likewise the biggest problems in cyberpunk are on the base consoles too. It was a fatal bug the game had since launch that punishes time spent with increasingly bad performance.
Look at some footage:
So on the one hand skyrim was criminally broken on PS3 at launch and stayed that way for a long time, but you weren't likely to see the worst of it on launch day. Cyberpunk was noticably very buggy and chuggy on PS4 at launch, and while patches have improved things rapidly, there's a limit to what they can do. Performance is still bad. But the more I play the game the more I enjoy it. Cyberpunk doesn't perform worse and worse exponentially the more time you spend in the game's world like Skyrim.
