Summary: I bought this processor around Christmas and I've had it through the paces now. I'm not going to get into technical stuff as other people have thankfully already put in their word on that. What I will say is that this processor has tremendous bang for the buck and the price point is right. After researching my options for a couple weeks ($300 is a big deal to me), I came to the conclusion that this unit was the right price with the right amount of firepower.
Summary: There is no point in getting the "K" version if your not over clocking and or have a graphics card . This CPU runs at 3.8 Ghz right out of the box and I had not got over 50*c with stock cooler . I am happy with this product and I recommend it to one one looking for a CPU in the 1155 socket range .
Summary: I upgraded from Pentium G620 and the difference is H-U-G-E ! 4 cores @ 3400 Mhz with a sweet overclocked gtx 660 gpu and my custom-built PC is just the gaming machine I needed. Definitely recommended for those who don't want to do overclocking and experimenting. Cheaper than the K version, newer model, and their only difference is that the K has better integrated graphics and is able to overclock. Also this cpu has some extra features the K version doesn't.
Summary: Love this handy little i5 Quad core Processor with only 3.4 GHz and 6MB with LGA socket of 1155 for the MOBO; use this processor on the Windows 7 Ultimate which is currently being worked on and upgraded and then being put out of commission never more to come online again; for all old games will be played on it as Windows 95.
Summary: This installed easy and is working great and seem like a sweet spot for performance and money spent. I put it in a new MB (AS Rock LGA 1155) to upgrade my old system. The only thing still slow are my older hard drives (time to switch to SSD ones I guess).
Summary: This CPU was used to build a gaming machine. It was a easy to install. I came with a beefy fan, but I ended up using a water cooling system. The CPU itself actually ran pretty cool. We ran a few intensive demo's and the cpu never got smoking hot like the older intel cpu's. Overall a great buy for gaming.