Ok let's think this one over:
- A D0 i7 will be about 4 - 4.5 GHz with an OC
- A Sandy Bridge CPU will get you about 4.7 GHz - perhaps 5.1 GHz and is 10% faster than Sandy, so maybe 25% faster overall
- An Ivy Bridge CPU will get you about 4.7-4.8 GHz (with delid) and is about 3-4% faster than Sandy - considering the slower clock, it's a non-upgrade save for PCI-E 3.0.
- A Haswell CPU will get you 4.7-4.8 GHz (with delid) and is perhaps 8% faster than Ivy, although that is skewed. On some applications, it is as low as 4-5%, while others it can be 20-30% (especially those that take advantage of the new instruction sets, although at the cost of power consumption). Basically a ~5% improvement over Sandy Bridge overall.
Is it worth it? Maybe if you do something CPU intensive that takes advantage of the new instruction sets. Of course, then an E series CPU is probably well justified.
Otherwise, a 4.2 Ghz 920 to say a 4.8 GHz 4790 - you are looking at maybe 30% faster clock for clock and perhaps 10% more headroom. The answer is, only do this if you are bottlenecked in games and if you have other applications. For those who are on Sandy or later, we essentially have single digit improvements in 3.5 years save for the new instruction sets.
Let's say Skylake brings another 5-10%. In that case, it will be 35-40% faster than an i7. That still makes it a hard sell for pure gaming.
Here's the scary answer. The answer may be not for the foreseeable future - perhaps even never.
Unless something replaces silicon, this seems to be as fast as CPUs are going to get.
Originally Posted by i7monkey
I sold my 780Ti back in August and I'm waiting for GM200. You didn't think I was gaming with this, did you?
GPUs are still getting better each generation, although with Moore's Law ending at 28nm, that may be slowing down too. I'd estimate big Maxwell will be perhaps 30%-40% faster than a 780Ti, so 25-35% faster than a GTX 980.
Nvidia's pricing tactics haven't exactly endeared me either. Let's hope that "big Maxwell" will not be another $1,000 USD chip and that AMD has something good.Edited by CrazyElf - 10/22/14 at 8:56am