Ryzen Performance on X570 compared to X470
Issue with memory write speed persists
Some Ryzen 5 3600 benchmarks from https://elchapuzasinformatico.com/2019/06/amd-ryzen-5-3600-x470-review/
Memory has some issues on writing
In short - Ryzen 1700 still is best bang for the buck considering used local or aliexpress prices.
Architecture
Lot of Ryzen 2 tech slides
Ryzen 5 3600 Cinebench results
If we look at Ryzen 1600 results in comparison it is 27% lower, but on same frequency difference is only 12,5%.
Ryzen 1600 at 3,9Ghz will make 1386 (most CPUs) and at 4.0Ghz will be 142, almost same as stock 3600.
It is just one issue, for 12-13% advantage you need to pay 2x more.
Very complex board for CPU - 12 layers
Unusual way to connect chiplets to board
Really risky or may be it is done as they know that such CPUs won't live more than certain amount of time.
Ryzen 3950X price will be $749 (you can get 1950X Threadripper + x399 motherboard for $800-840).
Ryzen 3000 is much different from 1st Ryzen in one regard
12 core model has 6 cores on each chipset working.
Same can be actually true for most 8 core models that will be 6+2 or 4+4, but rarely 8+0.
https://adoredtv.com/zen-2-chiplets-why-two-is-better-than-one/
AdoredTV had been right that all good 8 core chiplets go to Epyc now as profits per one is around 3-5x more compared to consumer product.
It also tell us that 7nm process is still not mature and has lot and lot of issues.
With Ryzen two years ago AMD idea had been same, but due to very good production yields they actually intentionally killed second chiplet, so processor came with 8 core fully functional one and another one where 4-6 cores had been good, but it had been disabled.
Same is true for Threadripper, as almost all of 2 unused chiplets had from 4 up to 8 cores perfectly functional, but to keep prices of higher core count models very high AMD intentionally destroyed them. Yes, like farmers during great recession.
Intel is doing same, where around 80% of their 2 core models could perfectly had at least 4 cores, but they had been disabled to not ruin prices.
This is why all people whoa re doing such making enormous damage to society must find their place on the trees.
An overclocked 16-core Ryzen based on Zen2 architecture would score 4346 points in Cinebench R15. That’s more than twice than Ryzen 7 2700X and 2.5x more than Ryzen 7 1800X.
Only multi-threaded performance was shown. The CPU was running at a voltage between 1.428 and 1.572V. This allowed the 16-core AM4 processor to run at 4.1 – 4.25 GHz.
AMD introduced the Ryzen 7 3800X, an 105W 8C/16T processor with a 3.9 GHz base and 4.5 GHz boost.
Ryzen 7 3700X. This 8C/16T CPU comes with a 4.4 GHz boost and 3.6 GHz base frequency, 36MB of total cache, and a 65W TDP.
The Ryzen 9 3900X comes with 12 cores 24 threads, a 4.6 GHz boost, 3.8 Ghz base, 70MB of cache, and a 105W TDP.
Ryzen 7 3700X for $329, the Ryzen 7 3800X for $399, and Ryzen 9 3900X for $499.
Lack of 16 core CPU!
Just for reference
So we can see AMD following Nvidia approach where despite better performance you start paying more for same performance unit.
DDR4 speed support
It is from some MB docs.
Note that it is usually also MB design that limits real DDR4 speed.
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