Can I turn CPU features On?

[DemizeGamer]

I'm getting a Dell Optiplex 755 MT on 6/18/15. I looked on Dell .com and it said that it's features were turned off. Here it is: https://www.dell.com/downloads/global/products/optix/en/opti_755_techspecs.pdf
It shows that on page 39.
So I looked on Intel Ark and it says that is has those features.
http://ark.intel.com/products/30783/Intel-Core2-Duo-Processor-E6550-4M-Cache-2_33-GHz-1333-MHz-FSB
Can I turn those features on? If I do will the PC be faster? I am going to use this for gaming. I have a EVGA GT 610 for it, which is going to be overclocked.

 

[Saberus]

None of those will speed up the CPU. Speedstep will let the processor downclock when idle for some small power savings.

What games are you going to play on this old dog? It's behind the curve now.

 

[DemizeGamer]

None of those will speed up the CPU. Speedstep will let the processor downclock when idle for some small power savings.

What games are you going to play on this old dog? It's behind the curve now.

Garry's Mod, Team Fortress 2, Counter Strike: Global Offensive, Not really demanding games.

At least it's better then my Socket 478 Pentium 4 HT 3.00GHz, which it can barely even run.

 

[Saberus]

Then you should be fine. I have a P4 2.93 in an LGA775 board, I know what you mean, just looking at it funny bogs it down,that's why it's just a side table now.