Hello everyone
i'm in the same situation as our friend except i already have my I5 2500k. Currently i am thinking two options
1) Buy a HD6790 around 129EUR
2) Buy a HD6670 70 EUR and a better CPU cooler 70 EUR and overclock the 2500k a little bit more.
The HTPC it's not intended for gaming. I use SVP MPC-HC and MadVr.
Bellow you can find a benchmark with the CPU at 4200 and cpu usage around 85-95%.
Test summary
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Date: 2011-12-27T18:35:53
CPU: Intel Core i5-2500K @3300 MHz [4 threads]
GPU: Intel HD Graphics
Mode: FHD + CPU [6 threads]
Overall scores
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Synthetic CPU: MC2080
Real-life: FC1693
Details: synthetic
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CPU: compose (single-threaded): 644
CPU: compose (multi-threaded): 2421
CPU: search (single-threaded): 484
CPU: search (multi-threaded): 1824
Details: real-life /FHD
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decode video: 13.37x (320.9 fps)
48 fps - vectors search: 1.27x (61.0 fps)
60 fps - frame composition: 1.35x (81.2 fps)
48 fps - [SVP] fastest: 5.93x (284.4 fps)
48 fps - [SVP] simple 1: 2.95x (141.7 fps)
60 fps - [SVP] good: 1.32x (79.2 fps)
60 fps - [SVP] high: 0.85x (51.0 fps)
60 fps - [SVP] highest: 0.45x (27.2 fps)
72 fps - [SVP] simple 2: 2.65x (190.9 fps)