AMD Roadmaps mention RDNA2, ZEN3 and ZEN4
Click here to post a comment for AMD Roadmaps mention RDNA2, ZEN3 and ZEN4 on our message forum
Error8
asturur
Richard Nutman
I'm not sure we'll see 4 thread SMT just yet, as it will have a big impact on caches. Remember L1 and L2 caches are for the core, and shared between each SMT thread.
Doubling up the number of threads effectively halves the available cache for each thread and massively increases cache contention.
For 4 way SMT to make sense you would likely need to see;
1. Micro ops per clock cycle increased from 6 to 8 at least. (Intel are moving from 4 to 5 on Sunny Cove architecture)
2. 50% to 100% more L1 and L2 cache.
IPC on Zen2 is great and already ahead of Intel.
Where they need improvements is;
1. Cache and memory latency
2. Higher clock speeds
3. Power optimisation.
I'd rather see Zen3 focus on those areas to really show what the architecture is capable of.
Cidious
Who needs frequencies when you have cores... a slight frequency increase would do with 2 more cores for the 6 core line up to 8 and up to 12 for the current 8 core position .. would be killer enough at 4.5Ghz at the same pricepoint and tdp. That would give them a real lead also against intel. Intel can't introduce more cores with HT without excessive TDP now. the 9900K proves that. Increasing cores for AMD would be more beneficial than increasing clocks. And they already said they won't be aiming for excessive higher IPC with the latest refresh. Which I think makes sense.
But that would be my wish. We just have to wait for the end result.
schmidtbag
Alessio1989
Ricardo
kakiharaFRS
Exodite
schmidtbag
JamesSneed
schmidtbag
JamesSneed
Evildead666
schmidtbag
DmitryKo
There is just no stopping AMD. It looks like Zen4 (Ryzen 5000) shall come in 2021 on a 5 nm node with an updated Infinity Fabric to support DDR5 RAM and PCIe 5.0.
It shall also include AVX512 extensions, since the BFloat16 instruction set mentioned in the interviews is actually part of the AVX512_BF feature set which requires baseline AVX512 F and VL to function according to current Intel's Architecture extensions programming reference.
https://wccftech.com/amd-zen-4-5-nm-launching-2021/
https://wccftech.com/amd-next-gen-ryzen-epyc-cpus-more-cores-new-infinity-fabric/
sykozis
anticupidon
In IOT or low power boards for network appliances, Jaguar is doing pretty well.
Pc Engines have their entire boards portfolio based on AMD Jaguar or older models.