Updated AMD roadmap (rumours)

[Grim5]

Highlights

* Zen3 will be followed by: Zen3+, TSMC 6nm on AM4 with ddr4 and pcie4

* Followed by: Zen 4, TSMC 5nm on AM5 with DDR5 and pcie5. Launch quarter is Q3 2022. Also Zen 4 includes an RDNA2 based iGPU, all Zen 4 CPU include an iGPU chiplet.

RDNA3: TSMC 5nm, launch quarter is Q3 2022, target performance is 50% increase per watt

Zen 3 Threadripper target launch month: August 2021

https://www.chiphell.com/thread-2314832-1-1.html

https://www.reddit.com/r/Amd/comments/mjst0p/latest_amd_cpu_roadmap/

https://mobile.twitter.com/Olrak29_/status/1378488719787786240

 

[Grim5]

Do i remember correctly that DDR3 was actually better than early DDR4?

Yes it was

mid history repeats, DDR5 will be slower than ddr4 for gamers at release however DDR5 will rapidly improved over time - it makes being an early adopter a double whammy, not only can you get worse performance but because it's new tech you will most definitely be paying a big premium for it and because of the pace of innovation, your expensive ram will quickly become worthless (ask anyone who has tried to sell their launch day 8gb ddr4 2133mhz kits)

 

[Grim5]

The main reason why AMD isn't onto 5nm yet is because TSMC's capacity is being taken by Apple for the A13 and M1 SoCs, this will change at the end of the year as TSMC increases capacity and Apple is expected to move to 4/3nm. 5nm isn't a mobile node or only for low clock parts, the node itself has been in mass production for a year, if AMD somehow managed to shrink Zen3 onto 5nm right now, guaranteed it would have better clocks and power efficiency than with the current 7nm.

Again with the latency, wait for final parts. I remember the same thing with early DDR4, it didn't seem much faster than the fastest DDR3 but the benefits became obvious after a short while when higher clocked DDR4 became available for cheaper than slower or equivalently clocked DDR3. If you look at the JEDEC spec, they don't expect DDR5 to be much worse than DDR4 in terms of latency, only a few ns, but you get the benefit of much higher clocks. DDR5 will be capable of hitting 8GHz+ which will bring significant bandwidth improvement and allow for faster CPUs with more cores and higher IPC. Saying DDR5 will be bad just because of some early test with poor latency is completely the wrong way to look at things.

Isn't JEDEC DDR5-5400 CL40 lol (pushing 100ns in AIDA64 lol) , how is that only slightly worse than ddr4

 

[Grim5]

As per Dr Ian Cuttres, this is the full list of DDR5 frequencies and timings that have been approved by JEDEC.

Each frequency has 3 sets of timing, the first timing is the "tight" timings, to be used for lower capacity desktop applications. The looser timings are for high capacity server kits.

Anything outside of these numbers is considered Overclocking. Therefore the reference range starts as low as 3200 CL22 and as high as 6400 CL56.

DDR5 has a theoretical frequency soft limit of 8400mhz, so it's expected that in time to come JEDEC will approve new frequencies above 6400mhz