Perfect forwards compatibility should never be the expectation. If the new hardware is more capable, then it is only natural that certain content should be exclusive to it. That's how it's always worked and that's how it should continue to work.
The hardware is only marginally more powerful in this case, it's not a full gen jump, it's not even a quarter gen jump.
forward BC on pc doesn't break every 3 years either it makes no sense.
You could buy a lynfield i5 and hd5870 in 2009 and still play every game on it today, and continue to play every multiplatform game on it until the end of the ps4-ps4k generation
idk why you want forward compatibility to be broken it's terrible for the user/gamer/consumer.
"Small upgrade?"
People spend hundreds of dollars on PC GPUs just to get like 120% performance of their last GPU.
Here were talking 230% performance..... and a new GPU architecture.
A lot can be said about PS4K, but small upgrade it is not, at least not on the GPU end.
The CPU yea is a small upgrade.
Not after 3+ years they don't.
I used to have a hd6870 (xbox one level performance) and the upgrade I bought 3 years later got >300 percent the performance of my old one.
noone spends hundreds of dollars to get 20 percent more performance after 3years
130 percent more gpu performance is a small iterative boost, it's not meaningless, but it's not nearly enough to do anything radically different.
A full generation jump is normally an ~1000 percent jump (and something similar for the cpu, and 16x jump for the ram), so when comparing it to a normal generational jump this spec bump is very small.
Which again is why some people are wondering what the point is.
Look at last gen, whether you had a 7800gtx or an 8800gt, by the end of the gen the difference between them and a modern gpu dwarfed the difference between the two, so they were both outdated all the same.
By the time the ps4 is at the end of its life and ps5 is about to release if it's supposed to be another 8 year gen (that is the argument , right? that ps4k is somehow supposed to extend this generation) the ps4k will be badly outdated just the same as the ps4.
If the goal was the extend the generation then a ps4k isn't going to help
if it's just a random intermediary spec bump before a normal length (5-6 year) generation switch then it's fine.
Xbox 360 GPU was 240 Gflops & Xbox One GPU is 1.31 that's ~ 5.5X jump in 8 years
PS4 GPU is 1.84 Tflops & PS4 Neo GPU is 4.19 that's ~ 2.3 jump in 3 years
You can't really compare tflop numbers between very different architectures
the hd5870 was a 2.7TF gpu on paper yet the 1.8TF hd7850 (GCN, brand new architecture compared to the 5870) in ps4 is obviously performs a good 50-60 percent faster in games.
Not that the xbox one was a full generation jump, it clearly wasn't, and it suffers for it in current gen ports.
If a ps5 is only a 5x jump from ps4 it would be incredibly dissapointing.