Summary: This CPU is a powerhouse. I have been using this processor for a while, and I have never even come close to using its full potential. This handles multiple processes without flinching, and continues to impress me. Although Intel's CPU's are far more expensive than AMD's, I can assure you; you get what you pay for.
Summary: Wow! I just got a used i7 3770 (non -K) chip and it made my Windows experience silky smooth. I through a 5g SVP (smooth video project) with level 4 MadVR via MPC-HC and it hit 65% load at 64C temp on stock cooling. Dang! I'm sure you can do better with an overlooked unit, but I was coming from a i3 2100 so this was an eye opener. Excellent upgrade! You won't be disappointed.
Summary: I bought this processor for the sole purpose of boosting a cheap Lenovo H520 desktop I bought for the purpose of upgrading with an i7 3770 CPU and GTX 760 graphics card, and I love the results. The desktop runs Windows 8.1 and was very slow with a Pentium processor, but this Intel i7 3770 breathes new life into it.