I think people are WAY underestimating this new 4770k. If I didn't already have a 3570k I'd definitely get a 4670k(I much rather a QUAD core without HT because of the extra heat and it overclocks less and takes more voltage, not because of the money). From the looks of things, Ivy increased about 3-4% IPC over sandy in single threaded workloads. Haswell looks like it increased about 5-7% over Ivy. In some benchmarks the increase from Ivy to Haswell is twice as much as from Sandy to Ivy. In one of these benchmarks the 4770k scores 1100 while the 3770k scores 1285(lower score is better), that's about a 15% increase! And in Cinebench 11.5 the 4770k's single core score was 1.75 while the 3770k score was 1.54, that's about an 8% increase, per core. And did you see those SiSoft Sandra benches? The 4770k looks like a beast right there. Granted, I don't like synthetics as they don't normally show real world performance. But imagine programs that take advantage of the faster cache and AVX2 instructions, the 4770k would be beast.
Overall, by looking at every score, I think the 4770k is about 7-8% faster than Ivy during most workloads while Ivy was only maybe 5% faster than Sandy. And whether you like it or not, 7-8% is a very good improvement. It's about 50% more performance than we got from Sandy to Ivy.
I mean what were you expecting to see? Some 15-20% improvement? When you already have a groundbreaking chip it's hard to make it even better, and they did that.
The bad part is, is that it overclocks around .2Ghz worse than Ivy from the looks of things. This should take away about 5-6% of the 8% that it gained. So overall, you should still see a 2-3% performance gain. And that's not taking into account the programs that may be 15% faster like the one I noted earlier.
So we are getting a better chip here. And I'm betting that because of that nice little jump in single threaded performance that games will run faster too. From Sandy to Ivy FPS increased by maybe 3%, I imagine that from Ivy to Haswell FPS will increase by 5%. If you look at it in terms of FPS, 5% can be a lot.
So as you can see, I'm fairy impressed with the new Haswell chip, taking everything into consideration. Some of you just read what Tom's has to say and don't even make your own opinion.