I'm guessing that intel program will control your CPU and case fans connected to your mobo, not your graphics card fan? The small difference in gpu temp is probably down to the increase in airflow in your case.
ROF doesn't heat up my 8800GTX much, never gets beyond 70c. Download Riva tuner, go to the customise button, low level system tweaks, and set your gfx card fan to 100% and see what happens.
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WAS C2D 8500 3.16ghz, 285gtx 1gb, 4gig ram, XP NOW Win7 64, I5 2500K, SSD, 8Gig ram, GTX 570