Latest benchmarks suggest it is time.
According to this roadmap it looks like we would see them early 2023.
While we don't have an announcement or launch date, I do think it will be at the very least 4 months after the Ryzen 7000 launch because if they immediately launched them, it would have made the Zen 4 chips without 3DVCache look like a bad purchase. It would, in my opinion, be a bad move to launch them now just because they just launched Ryzen 7000. It took 17 months for the Zen 3 3DVCache to follow Zen 3. While they probably could start mass production now and launch it in a few months, I don't see it happening until March or April at the earliest.
Something has to happen soon. 7000 series has not sold well even before and from now on competition is slightly faster and depending on model, similarly priced or cheaper.
At this performance level speed is not necessarily the issue, but pricing is and thick IHS, limited memory speeds, limited availability of compatible CPU coolers and expensive motherboards (even the PCIe gen4 B-series) are not helping. Most coolers people have, don't use those black plastic holders, but those are the only "compatible" ones. This was the one launch where included cpu cooler would have actually helped, but it is also the one where they are not included nor available.
Releasing 3D Cache models now would require dropping 7000 non-3D pricing, but that has to happen anyway. I waited 7000 series launch a long time, but after seeing prices, have not bought anything. 500€+ retail from 7700X is a lot when you consider that 8 cores used to cost 300-350€ and my commonly viewed as "overpriced" 3800X was 400€... with a cooler.
EDIT: By watching at benchmarks (and yes, BIOS and other updates might change things, or might not), 13700K is faster in gaming and trades blows in productivity with 7900X while being around 7700X price range. 7000-series is more efficient and is really fast, but competition is hard and pricing should reflect that.
While I agree the performance compared to the 13th gen is lower, the way I have seen AMD compete has always been to release a few months after the competition. Looking at the 5800X3D they waited nearly 5 months to release it to compete with the 12900K. I have a feeling that will be the standard they follow with the release of Zen 4 3D chips.
Realistically, the 5800X3D is still a viable option just because the Zen 4 current chips rarely or barely best it in gaming performance.
While I would love to see these amazing frequencies 5+Ghz on the Zen 4 3D chips soon I think the past is where we will find the pattern of release.
Ryzen 5000 was made to compete with the 11th gen Intel core CPUs, and the Ryzen 5000X3D, and Ryzen 7000 chips later on, to compete with the 12th gen. With that, the Ryzen 7000X3D will be how they compete with 13th gen Intel chips in gaming.
I do hope they surprise us all with the earlier release of 7000X3D but, I don't believe that will be the case.
I am surprised no one else with more of an understanding of release cadences has not chimed in.
Hello, Everyone! Great question and great comments!
As you can imagine, the AMD staff, starting with me, can not comment or disclose information regarding actual release dates - we'll get in huge trouble if we did, I hope you understand.
But most of you, if not all, are very savvy about our CPUs, releases, prices, performance and features, etc. and I trust have a good idea for what's ahead.