A bit of info about AMD's Zen3 CPUs (most of it was already known/leaked):

AMD Zen 3 Powered Next-Gen Ryzen 4000 ‘Vermeer’ CPUs Detailed: Up To 16 Cores / 32 Threads, 32 MB Shared L3 Cache Per CCD, 8 Cores Per CCX
https://wccftech.com/amd-zen-3-ryzen-4000-vermeer-cpus-detailed-up-to-16-cores-32-threads/
Official information regarding AMD's next-generation Ryzen 4000 CPU family based on the Zen 3 core architecture has been unveiled. The information is part of confidential AMD documents that were shared with us by CyberCatPunk.

(...)

According to the document, the AMD Zen 3 based Ryzen 4000 AM4 CPU family, codenamed Vermeer, is designed for use in high-performance desktop platforms & will feature up to two CCD's (Core/Cache Complex Dies) and a single IOD (I/O Die).

Unlike the previous generation design where each CCD comprised of two CCX's (Core Complexes), the Zen 3 CCD will consist of a single CCX which will feature 8 cores that can run in either a single-thread mode (1T) or a two-thread mode (2T) for up to 16 threads per CCX. Since the chip houses a maximum of two CCDs, the core and thread count will max out at 16 cores and 32 threads which is the same as the existing flagship AM4 desktop CPU, the Ryzen 9 3950X.

Each Zen 3 core will feature 512 KB of L2 cache for a total of 4 MB of L2 cache per CCD. That should equal 8 MB of L2 cache on a dual CCD CPU. Along with the L2 cache, each CCD will also comprise of up to 32 MB of shared L3 cache. For Zen 2, the L3 cache was split between the two CCX's with each CCX having their own separate (Up To) 16 MB cache. The size of the cache remains the same per CCD but now all cores can share a larger number of L3 cache.

Yea pretty much. The problem with leaks and tweets is, you can never know who is right and who is wrong until the product actually comes out.

For the longest time for Ampere, this was the most reliable leak:

Even reliable leakers tweeted that one as well but it got every single thing wrong other than the bus width for the 3090. Eventually as we got closer to launch, a lot more reliable leaks came into play and those were correct to an extent. Based on the Ampere benchmarks that got leaked and Nvidia's own claims, 3080 is exceeding expectations based on that leak as it was supposed to be GA103. So we will see how it all goes.

Zen 3 + 3080 gonna be one fap worthy holiday combo

Alright so Asus went the route of having a higher memory clock than core clock boost. As memory has been pretty easy to overclock in the past, I think it's best to go with GPUs that have higher core clock than memory clock so Asus is gonna be off my list.

I think I will end up with MSI Trio with it's 1815 mhz boost clock assuming it's reasonably priced. If not, probably founders.

Looking at the dimensions, the length should be 323mm for the MSI.

The thing I like about my case is that it has 3.5 inch hard drive bays at the bottom with an option to put them in the normal place. I obviously chose to put them at the bottom so that allows my case to have a clearance of 412mm for the GPU.

Thus my case is ready! My power supply is the EVGA Super Nova 750 Watt G3 fully modular which has 4 8-pin PCI-E power connectors. So I think I am all set for that 3080.

Sounds like you have a plam, but I'm not usre if that PSU may not be enough...

Meh, MSI is recommending 750 W on their website. I think I will be fine as the 3900X is hella power efficient. If I had an Intel, I'd be sweating though.

Nice build.. The G3 series is a tier 1 gold PSU made by Super Flower. It most definitely will be enough.

There's always ample power headroom for PSU requirements. And I should certainly hope so, considering as I have the G2 lol

The issue with Red Gaming Tech is that they have a clear AMD confirmation bias, so yes they can get predictions "right", I often get my predictions "right".
The issue with Red Gaming Tech is they tend to report on every single possible rumor and try to pass it off as something factual.

Ironically it's the same issue I have with wccftech who aggregate every possible rumor under the sun, even if it contradicts their prior article.

We need to source our information from impartial sources like Anandtech or Digital Foundry and place less emphasis on rumor, otherwise we support "fake news" and "rumors passed as news".

I wouldn't really call Digital Foundry impartial they were basically paid advertisements for Nvidia for the last few videos. Their Ampere preview benchmarks were up as soon as the announcements were up and most of those cherry picked tests picked by Nvidia; to show them in the best possible light.

But yeah most of these influencer have some sort of bias, though it doesn't mean they can't have real information from so called leakers or sources. In any case its grain of salt and most of it is probably BS.. But it keeps speculation and discussion going. If you want hard info, its best to wait for proper reveals from the companies themselves and extensive benchmarks from Gamer Nexus and other outlets :P

Digital Foundry also do the same for AMD though, they have been praising the SoC's in the consoles to high heaven.
And usually Digital Foundry will state if they are sponsored just like Anandtech, so you know what to expect.

Plus both outlets have proven that if there is a critical talking point that may not shine the product in the best possible light, sponsored or not, they will mention it.