Devildoll

you have to be a real Audiophile to think an integrated soundchip isn't good enough.

all i can say is that my shitty $20 soundblaster audigy i bought a long time ago is noticably ( not by magnitudes) better than the integrated soundchip in my p4p800se motherboard ( pentium 4 )
as well as my P6TDeluxe V2 motherboard ( socket 1366 )
  
creative drivers can be a mess though. 
Then ive also got a xonar ST, which is again a couple of notches better, but now we're stepping into audiophile territory.

advantages: reduces tares in the image.
disadvantages: can contribute to "mouse lag" , traditional vsync means that if the framerate drops to 59, it effectively drops to 30.  in general just delays the image more than with the setting turned off. 
 
i personally just want the most actual image possible, i can live with tearing as long as i am in full control of the situation and able to pop a cap in the other guy before he does me. 
for the most part I don't even get tearing, so vsync aint that necessary. at-least on the games i currently play.
 
You can not tell the difference between 60 and 200 fps, if your screen only updates at 60 hz, if you have a 120 Hz however, you are able to distinguish up to 120 individual frames per second.
Some things are more complex than just the actual picture displayed, some game engines behave differently depending on the framerate, so even if you cant actually any frames above 60.
your character might run faster if you let the game pump out 100 fps.
 
counter-strike ( the real counter-strike) is an example.

Forza season passes have usually been good for 6 months, but then they still keep releasing dlc a couple of extra months. which you have to buy, even if you paid for the season pass.
 for the die hard car enthusiast/forza fan, this is a must get, pretty much.
 
but, if you want to be smart about it, they usually release a platinum edition of the game at the end of it's lifecycle, including all DLC , not just the season pass ones.
the problem with that is that you have neglect the game until the end of its life-cycle.

The 'speed' of your RAM is 800MHz. And it's 939 MHz. Also, it's 1866.

The RAM's standard clock speed is 800 MHz. It's probably been overlocked to roughly 939 MHz, which is fine. It's fairly common for RAM to be sold overclocked above it's default speed. The 1866 is the number of bits per second per channel and is twice the clock speed (give or take some rounding errors) in all DDR RAM.

Overclocked RAM can cause issues, but it's also an easy scape goat. RAM that's overclocked too much causes general system instability. I wouldn't expect issues specifically with one game.