What are you talking about, 7900 XT uses 20 watts more in gaming here.
Chiplet / MCM literally SHOULD use much less power than monolithic. Yet AMD failed here. They tried to pull a Ryzen on the GPU market but failed.
There's surprisingly little uplift in most games from the memory upgrades.
www.tomshardware.com
And i quote
"
Nvidia's Ada Lovelace architecture clearly reigns as the power efficiency champion — we have performance per watt data in the tables at the bottom of the page. The new 4070 Ti Super has a TGP (total graphics power) rating of 285W, the same as the vanilla 4070 Ti. In our test suite, it averaged 224W at 1080p medium, 249W at 1080p ultra, 268W at 1440p ultra, and 283W at 4K ultra. That's about 15–20 watts more than the 4070 Ti Founders Edition at each setting, but still below the rated TGP in most cases.
Performance on average comes very close to matching the RX 7900 XTX, while drawing about 75W less power. It also outperforms the 7900 XT by around 13% and uses about 25–50 watts less power, and ranges from 5W less to 30W more power than the RX 7800 XT while delivering up to 45% more performance.
In general, the RTX 40-series GPUs are roughly 30–50 percent more efficient than AMD's competing RX 7000-series RDNA 3 GPUs."
True, 4070 to 4070 SUPER was a 22% improvement in cores, resulted in ~15% performance.
4070 Ti to 4070 Ti SUPER is 10% improvement in cores, the VRAM and bus width don't really affect performance much since it was not a limiting factor to begin with and the end result is 5-6% which is the same increase as 4070 to 4070 SUPER percentage-wise.
The bus width helps slightly more in 4K, but who really buys this card for native 4K gaming, most 4K gamers I know use DLSS or FSR anyway.
Personally I look at 1440p testing. The middle-ground. Don't care about 1080p or 4K really. I did not use 1080p for years and the 1440p result is going to be more in line with 4K using DLSS/FSR anyway.
Many 4K gamers even uses DLSS Performance mode which is 1080p internally but it looks quite decent actually.