Ok since I am waiting for my TV to be repaired my substitute TV would not work with my HD7750 discrete video cards HDMI output I had to remove the card and use the IGP in my i3-2120.
My overall temps for core 0 and core 1 went up from 25-30c at idle to 35-37c at idle. Along with that 5-7c increase in temps, when i am watching a 1080p mkv core 1 goes up another 5-7c with the IGP running at 90% usage. with core 0 hitting 42-45c and core 1 hitting 47-50c. With my discrete card the same video would only make core 0 and core 1 hit 30-32c. The cooler i am using is like a intel boxed cooler but almost twice as tall and i have it running at a silent 2000rpms.
I am surprised the temps rose so much using Sandy bridges 6 rop HD graphics that according to GPUZ uses less then 6 watts. I imagine sandys HD3000 with 12 rops would increase temps even more..I have a i3-2125 in my other rig that I might remove the discrete card and see what temp increase i get with the HD 3000s 12 rop since it has the same cooler as my other rig I mentioned the temp increases on.
Ivys HD4000 has 16 rops and Haswell has 20 rops.
I imagine anyone using ivy bridge or haswell IGP along with a discrete card using vurtue MVP or something like that will get higher temps then if the IGP is disabled altogether. This could make a difference when overclocking the CPU cores on IVY and Haswel K models so I figured i would mention my observation and you can all do with it what you want. I found it very interesting.http://www.xbitlabs.com/articles/cpu/di ... html#sect0
I found this xbit labs review showing the i3 2125 HD3000's using 55.3watts during GPU burn 10.3 watts more then the i3 2120 HD2000's 44 watt GPU burn Note that both CPUS are 3.3ghz with HT. The same chips with CPU+GPU burn has the 2120 at 68.9 watts to the 2125's 81.6 watts....12.7 watts more for 6 more rops and the same CPU cores.
Comments are welcome if any of you have notice this also.