It is easy for me to sit here and "spend" your money but, I would recommend the extra $60.00 and go for the Crosshair VII.
Yes, your chosen CPU will work fine on the C6E after first flashing the BIOS but, there are some other advantages to the C7H due to newer X470 chipset and the power delivery on the C7H being the most compelling arguments for me as far as future proofing and going with the latest. Are these necessary, no not at all, and those who own the C6E board already have no requirement to upgrade especially since they have already invested in their board. But, since you are looking to buy now, why not go with the latest model with the latest updates? I mean let's be real, those of us with the C7H will be the ones with the older model soon enough. So you might as well have the latest/greatest while you can.

bartold3ak wrote:
Hello, I am first time posting here and I have few questions.
These options are available in my country:

• Crosshair VII Hero > 300$
  
• Crosshair VI Extreme > 240$
  

Also:

• Will I be able to update bios on Extreme for Ryzen 2 gen via bios flashback without Ryzen 1 gen cpu?
  
• Are there any features that are missing in Extreme that Hero has or that are missing in Hero?
  

Thank you if anyone answers!!

Have look at the circuit analysis pages of reviews on Tweaktown. What you will find is the Crosshair VI Extreme uses the same IR3555M 60A mosfets as the Crosshair VII Hero. The Crosshair VI Hero used some TI NexFET ones, which TBH are sound as well.

So the difference between C6E VRM and C7H VRM is ever so small IMO. One could say it's greater between C6H and C7H.

For your usual OC'ing I'll doubt you'll find a huge difference between each.

Now what many don't talk about is how the C7H has 256Mbit BIOS chip, only 16MB of the 32MB is used (C6H/C6E has 128Mbit and files are 16MB currently). Now this does have some future proofing benefit, example in this article.

Personally have look at each board carefully decide for yourself. I haven't looked much at the C6E, but as I own the C6H and C7H this is the list of differences I made:-

C6H:-

i) has TPM header.

ii) has 3D print mounts.

iii) has AM3 mount holes.

iv) 2 extra SATA ports.

C7H:-

i) 2 extra VRM phases for CPU. It is setup as 10 VCORE, 2 SOC, where as C6H is 8 VCORE, 4 SOC. Inconsequential for my type of OC'ing IMO.

ii) Has port to allow use of ASUS Fan Extention board for more fan headers and temp probes.

iii) 256Mbit BIOS chip.

iv) ProbeIt voltage read points improved accuracy.

v) Addressable RGB headers.

vi) 2x M.2 slots.

Note: My list is not exhaustive on differences, but some things I picked up.