Your sources are bullshit, then, specifically the claim that they throttle to under 1 GHz. Even my SP2 only throttles to 2.5 GHz under 100% CPU load and 2.0 GHz with 100% CPU+GPU due to the 80 degrees ceiling. The guy at the top post of the following link has both a 4200U and 4300U SP2 and benchmarked software on both, finding that the 4300U was 10-25% faster. This is probably because most applications don't ever use 100% load constantly such that you don't have max heat generation which allows the clockspeed to stay higher on the 4300U. In fact, in the 3rd post of the following link (note that I have the 2nd post ), they see that the 4200U stays at 2.3 GHz while the 4300U settles in at 2.6 GHz:
Surface Pro 2.5 i5 4300U 1.9 Ghz 2.5 Ghz - Microsoft Community
Also, people play games on their SP2 possibly because they can and can do so on the go in a convenient form factor that has its own screen. Lugging a PS4 and TV around on a long bus or train ride isn't my idea of a fun time. The Intel HD 4400 is a respectable integrated graphics solution that can play most modern games at playable framerates at low to medium settings, mostly at 720p but some at 1080p.
It looks like ur stupid ,discussing with you is a waste of my time!
enjoy ur 4300U kid!