Games like FF16, FFrebirth, Cyberpunk, hogwarts,
Even that new pragmata game takes up more than 12gigs of vram in 4k.
Cyberpunk is one of the few games in my extensive library that can allocate up to 15 GB of VRAM at 4K, with settings that could only really be handled by an RTX 5090. I don't think that will be a problem for the RTX 5070 user, a card designed for 1440p gaming. Also bear in mind that the actual VRAM usage in Cyberpunk, even at 4K, is only around 10 GB, so I think the 5070 with 12 GB VRAM would still suffice. Even if VRAM would be spilled a little bit into system RAM, PCIe 5.0 should handle that. Hardware Unboxed proved that fast PCIE can drastically reduce performance drop and stutters in VRAM limited situation.
Cyberpunk, I used playable / usable settings, not 4K native, because this game is extremely demanding at 4K with PT and even Ultra RT. As my results shows, at 4K VRAM can be allocated up to 15GB VRAM, but real usage was still around 10GB VRAM.
4K DLSSP + FGx2 with Path Tracing, 13.2GB VRAM allocation, 10GB VRAM usage
4K DLSSB + FGx2 with Ultra RT, 15GB VRAM allocation, 10GB VRAM usage
And 1440p results that shows realistic scenario for the RTX5070 12GB VRAM shows much lower VRAM usage, that perfectly fit into 12GB VRAM
1440p DLSSQ + FGx2 with Path Tracing, 11.6GB VRAM allocation, 9.4GB VRAM usage
1440p DLSSQ + FGx2 with Ultra RT, 11.6GB VRAM allocation, 9.4GB VRAM usage
Pragmata demo
4K TAA, 14GB VRAM allocation, 9.6GB VRAM usage
4K TAA + FGx2, 14GB VRAM allocation, 9.7GB VRAM usage
4K DLSSQ, 12.4GB VRAM allocation, 8.3GB VRAM usage
4K DLSSQ + FGx2, 13.3GB VRAM allocation, 9GB VRAM usage
And now 1440p settings that people will actually use on the RTX 5070
1440p TAA, 8.5GB VRAM allocation, 7.1GB VRAM usage
1440p TAA + FGx2, 8.9GB VRAM allocation, 7.5GB VRAM usage
1440p DLSSQ, 8.4GB VRAM allocation, 7.1GB VRAM usage
1440p DLLSQ + FGx2, 8.8GB VRAM allocation, 7.4GB VRAM usage