Because its A73 core are faster and clocked higher than the Pi 4's A72 cores and its GPU is more powerful.Why would you want one of these over a Raspberry Pi?
I don't know if you are just learning about Single Board Computers, but there has been multitudes of solid, durability tested products since the original Pi has been introduced. Most people don't care about how fast a SBC's GPU is because 9 times out of 10 there are ZERO hardware accelerated drivers, and you can tell that to my Odroid-XU4, Le Potato and Banana Pi based boards.If you're the type to dabble with Raspberry Pi, but wish there were alternatives to muck about with, you may be in luck.
I see most of these kind of articles from Tom's Hardware in my news feed, and a lot of it makes me upset because I know for a fact the article writer hasn't tested the hardware, just quoting specs.Because its A73 core are faster and clocked higher than the Pi 4's A72 cores and its GPU is more powerful.
The real question is why you'd want this over an ODROID-N2. That, I don't (yet) know.