The 5x00 lineup has a few models with lower clock (5500, 5600, 5700), but they consume as much as their higher clocked counterparts (5600x, 5700x).
The hope is for a 7500 with lower TDP, which is a possibility.
They listed Zen 4 at 65w TDP being 74% more efficient than Zen 3 in their slides, which implies they do want to sell a part at that spec at some point.
If your concern is purely noise/heat and so on, and not budget, then you can just buy one of these chips and apply restrictions to it, given modern chips auto-scale performance. Can feel like a waste, of course, but should result in a very efficient setup.
If you missed the presentation, look for in-depth coverage[1]. These chips are more efficient than Zen 3, consuming less power for the same performance. The higher TDP allows for higher multi-core clocks and much higher performance, but that's not the same thing as power consumption (across all levels of performance).
Sure, if you can use the power at the high end, you can consume more power, but you'll get a lot more performance out of it.
[0] https://www.intel.com/content/www/us/en/support/articles/000...
> TDP stands for Thermal Design Power, in watts, and refers to the power consumption under the maximum theoretical load.
[1] https://www.anandtech.com/show/17552/amd-details-ryzen-7000-...
That's coverage from the slides, a.k.a. marketing. I don't doubt that this will be a significant performance/efficiency improvement, given the soft cap, but desktop is another thing. TDP has been correlated with average consumption, on Intel CPUs, and all the GPUs. It'd be surprising that this didn't apply to this specific CPU family.
I know from personal experience, my CPU rated for 105W TDP tends to consume 30W or less during my normal usage, though certainly more during heavy computation including gaming. Higher base clocks on the Ryzen 7590x (4.5Ghz) compared to Ryzen 5950x (3.4Ghz) could lead to overall higher power usage, if the increased efficiency at those clocks isn't enough to cover the difference.
Indeed every CPU announced here has a higher TDP than the previous generation, which isn't the best. Hopefully lower TDP SKUs come out as you mention.