After two weeks of Ryzen I have gone back to Intel. This will be a long post.
I had a 1800X and a Gigabyte Aorus GA-AX370-Gaming K7, really nice board and the extra cores when I was encoding videos was awesome.
I upgraded from a 4790k and an Asus Z97 Deluxe that I had used since launch around 3yrs ago and the system had been very reliable and fast, never even had a BSOD in 3yrs of 24/7 use either. I thought why not try Ryzen, single core performance was close to the 4790k and I had all those extra threads to play with. Performance was ok but boot times from cold to desktop was slower and desktop performance was sluggish, this was on a clean Windows 10 Anniversary update.
Opening task manager was slow, took twice as long as my 4790k and even simple things like expanding folder sizes by dragging the corner was terrible, felt like the frame rate was at 20fps and lower. Moving folders was fine, no issues there, that was nice and fluid (I run a 4K screen with 2x 1080 Ti's)
My other issues and they were big ones was the SSD 4K read/write was extremely slow compared the Intel system and the GPU performance was not the same, no amount of driver changes would fix this.
Here is a user bench run on the 1800X, check out SSD 4K performance and GPU peformance.
http://www.userbenchmark.com/UserRun/3699889
Now the Intel 7700k on a Z270 chipset, 4K SSD performance is significantly faster and this is probably one of the main reasons the overall OS feels much more responsive.
http://www.userbenchmark.com/UserRun/3737526
Now on to gaming, I game at 4K with all games at their max settings with 2x 1080 Ti's so, some games ran very smoothly and some had insanely high frame times that caused the stutter to be so bad those games were unplayable.
Check out this frame time shot of the 1800X playing Biosock Infinite at 4K maxed out, unplayable as frame times went as high as 400ms+, same issue in Watch Dogs 1 and a few others. Tried turning SMT off and on, using AMD's balanced power plan and high performance, different Nvidia drivers but nothing would change this result.
Now here is the 7700K, no spikes in game at all, silky smooth. The spikes at the beginning is just the game loading.
Here is also my samsung magician benchmark on my 850 Pro 1TB SSD, bloody awful performance on the Ryzen system. Tried every SATA port even using the SSD on it's own with no other SATA drives plugged in, same result.
And now the Intel Z270 system, exactly as it should be and the same performance that my Z97 had.
Now when I switched from the 1800X to the 7700K to test, all I did was remove the AMD chipset driver, put the new motherboard/CPU in, powered up and that was it, even on the very first boot Windows picked up the new hardware perfectly and went straight to the desktop, I ran a few benches without even installing the Intel chipset drivers. Every other driver and software on the system was the same as it was the same Windows install.
The difference was like night and day. I no longer get frame time issues in any game, all run silky smooth and overall OS responsiveness is far faster. Expanding folder sizes is silky smooth and folders and task manager open in a split second.
Shame as I love the extra cores but with the issues I had it was a massive downgrade overall from even the 4790k.
Here is firestrike run, 1800X scored 24,403, 7700k scored 26,987
http://www.3dmark.com/compare/fs/12627099/fs/12684103
Ryzen is an amazing chip but needs improving as does the chipset, if you want to game at 4K even I would not recommend Ryzen for the time being, at least until there is far more optimisations and games take proper advantage of more cores.