Not true. All ddr4 sitcks, have an spd chip on it, and this has the timings set in it. You can buy 4 8 or 16gb sticks from different shops (same brand) and they will work fine. Matched pairs are only useful when you want to squeeze every drop out of an overclock on the memory. You can match different brands but you might have to manual enter the timings in bios to the lowest common denominator You can mix 2 x 3000mhz ram with 2 or 1x 2400 mhz ram - the downside is that the 3000mhz ram will most likely downgrade to 2400mhz
Why would you want 32gb of ram for gaming? :|
Can't see any reason they wouldn't, they come off the same factory floor. All undergo same tests before leaving factory.
I have 16gb of this and it's very good, I'm looking to get an extra 16gb of this for my gaming pc i highly recommend