6800XT to 7900XTX was 50% i did this one in 2023.
6950XT to 7900XTX about 35%.
I also generally don't move up in gpu's until I hit that 50% sweet spot also.
I think a better way to look at it for many is going forward (with all ML upscalers), whenever your current card can't do 1440p at the settings you want (be it upscaled from 960p, native, or 1440p->4k), upgrade.
4k is just asking too much; heck asking 1440pRT is asking too much. Likewise, many are not going to happy with lower. 1440p native, 1080p->4k, or 960->1440p all make sense to varying degrees.
DLSS3 had generally a ~8% perf hit in 'quality'. DLSS4 15%. FSR3 between the two.
FSR4 IDK but I think it'll be ~8-9% (but this could be made up through the rop limitation/shader cache, long-term UDNA goal?). This is kind of an important variable.
RT has a roughly 31% performance hit on nVIDIA, and it will likely be the same on AMD's newer arch, as I think the extra TMUs will effectively do the same thing as nVIDIA's fixed-function hw (30%+ from Navi3).
Does that help anyone? IDK. But there ya go. Situation is fluid, but in the end I think your tiers would essentially be 9070xt/4070ti, 5080 24GB, and 4090. One of those cards doesn't exist.
These will probably be replaced by 6144sp, 9216, and 12288sp with 16/18/24GB of ram on 3nm and perform more-or-less the same. Good, better, best. Not really gonna change, just slip one tier down.
I think asking $700 for the bottom tier is ridiculous, but I understand it relatively speaking. For 5080 to be worth $1000, it needs to have 24GB. 4090 prolly not too far off MSRP; all perfectly relative.
These will all likely drop one price tier next-gen, and I'm sure there will be some absurd tier above them that almost nobody buys, probably. But it's pretty much that simple.
IMO these prices could still all be relative and should be priced one tier down already, but they are not because they are propping up next-gen prices. Whaddya do, that's life ig. DNW.