Upgraded old PC to a new one but performance isn't noticeable!

Hi, just as the title says so i had an Desktop PC with these specifications: Core 2 Quad Q8400 2.66GHz, 4GB DDR3 1333MHz, ATi 7750 1GB GDDR5, 1.5TB HDD WD Caviar Black and ASRock G41M-VGS3 motherboard it was all fine but i needed an "budget" cpu with higher "GHz" because i am an average user so i can't fully use Quad-Core CPU and as we know Q8400 isn't that fast in basic tasks because of it low clock speed so i found on some forums that "Core i3 3220 3.30GHz" beats Q8400 in basic single thread applications and what i did i bought a new desktop pc with Core i3 3220 3.30GHz, 8GB DDR3 1333MHz. Nvidia Geforce GT 630 2GB GDDR3, 500GB HDD and GA-H61M SP2 motherboard and i installed Windows 7 64 Bit with all drivers that comes with the manufacturer CD, also updated all windows updates, programs open faster than before, i did an benchmark with PassMark and it scored much higher than before but the only thing that is diassapointing me is that when browsing to "Windows Explorer" for example opening "my computer icon", "opening folders" etc... they just open as fast as with core 2 quad cpu but in other hand when i clean install of windows 7 in my friend's PC which PC it has I3 550 3.30GHz cpu and 4gb ram when i browsed to windows explorer i remember that it was faster than mine, so i'm thinking that this has to do with "Intel speed step mode" because as i can remember i3 550 in my friend's pc it was running on full speed with means with intel speed step mode (disabled) on "3200MHz" and mine is rruning with intel speed step mode (enabled) wich means in non intensive tasks is running on a "1600mhz" core clock speed instead of "3300mhz" but still not sure, so i need your answers and opinions, thank you so much and sorry for my poor english