Only thing with X is XFR where it's like a automatic turbo boost to higher frequency when the CPU detects ample of temperature + voltage that can support higher frequency range.

Pls correct me if I am wrong

"AMD's upcoming Ryzen processors are "unlocked," in that they feature unlocked base-clock multipliers that let you easily overclock them; yet a few of its variants feature a brand extension "X." As our older article details, the "X" refers to availability of the XFR (extended frequency range) feature. Think of it as a second stage boost that rewards good CPU cooling with higher CPU clocks set automatically. The Ryzen R7-1800X, R7-1700X, R5-1600X, R5-1400X, and R3-1200X feature this. "
source : https://www.techpowerup.com/230609/amd-ryze...encies-revealed

if buy ryzen 5 1600x
then i need get gc
i thinking to get combo with rx 580 or gtx 1070?

Ah, I see. So it's just 50Mhz extra for the auto-overclock. Is there any other distinction between the regular and the X model to justify the increase in price? Thanks

I see, I see. That doesn't seem like a very good move from AMD since it basically means that the 1700 can perform as fast as the 1800X if manually overclocked right?

The 1600X and 1500X do look very tempting from a regular consumer point of view. Or would the middle 1600 non-X a better buy? Thanks for sharing the information with us, I'll be looking into your reviews for more insight.

https://docs.google.com/spreadsheets/d/1Dbt...dit?usp=sharing
Can check up tis ryzen oc databse which from overclock.net

All just silicon lottery if willing lower vcore to get better oc result.
From what latest review, seems 1500 is the best value ryzen,.

you mean cpu bottleneck?

weird
so what u means is
x series is for over clock and it apply on all core?

And the demo set is using ryzen, can it be utilize well under ryzen?
Coz if around gtx1080 performance, should consider as high range gpu oledi.

But commonly ppl get high end gpu as gtx1080 and above for 4k gaming (especially 1080ti), and seems like fps between ryzen and 7700k is not a big gap @@. 

If just gaming, go for r5 or i5 i7 even i3 or pentium ? @@ kinda useless use an RM2k++ cpu just for gaming except got lot of money and dun mind burn them XD