One thing I would like to point out is that the example of Q6600 and E8400 is not a like for like comparison for the current situation.
The Q6600 and E8400 were both priced at around the same price of around £140~ back then, but here what we got is Pentium-K at under £60 vs i3 at £90 vs non-K i5 at £130+ and i5-K at £170+.
As for the Pentium K vs Athlon 750, despite both might be around same price, but the Pentium would be on a better platform with future upgrade path (while the AMD does not), and it would be faster in light-threaded games, and more or less match the 750 in higher threaded games. If people was planning the build for heavy usage and expect it to last for years to come, then those people should be getting the i5 (or i7 even) in the first place; the Pentium K is not for that kind of requirement, being just a budget sub £60 CPU. It's like if you dine at a pub restaurant and paying only £6-£8 for a meal, you know what you are expecting...you can't compare it to quality of restaurant that would cost you £15+. The £6-£8 meal at the pub restaurant might not be high quality, bit it doesn't mean they are not good in terms of standards for the price they are charging.
The same crowd were pimping the E7300 too and even the E5300 over the Q6600. However,history is now re-written to accommodate the G3258,so the Q6600 wasn't the legendary CPU it was,but merely meh.
The E8400 was used as an example as it had 25% higher core clockspeed,greater IPC and overclocked 20% higher on average while using less cooling(but it needed newer motherboards).
It had much better single core performance.
Plus I had a higher clocked E6300 against a lower clocked Q6600 in two rigs until late 2011. Guess what faired better with an overclocked HD5850?
No body is saying to buy an X4 750K as it is an outdated CPU,but it shows that even an ancient quad core with
yesterdays performance is still matching(or even beating in frametimes) the uber budget CPU of doom,the G3258. The X4 750K was around £55 to £60 for over a year.
The X4 750K lacks L3 cache and is beaten in many games by Phenom II X4s and their Intel equivalents from before 2012.
Also,many of you have not built as many budget rigs as you think. Plenty of people expect their cheapish rigs to last(since many have consoles too),so if their CPU starts becoming an issue in 12 months or so they won't be happy. Don't believe me?? Look at the PC market,year on year the desktop market has been declining, eaten up by laptops and tablets.
Desktops are being kept longer and longer and people expect even cheapish desktops to last.
I have done so many of those builds in real life and on forums,consoles have really changed the way people think about desktop longevity.
Many people don't even upgrade their CPUs FFS.
People keep ignoring the frametimes in the TH review,and even in lightly threaded games,the Core i3 is doing better. Very few games are showing a G3258 being faster(if you can get a massive overclock),over the Core i3 and OFC then it makes more sense to buy the Pentium. The problem is even then the HT is still making a difference,which people are repeatedly ignoring and at a massively lower clockspeed.
Plus you also forget,the Core i3s used to be closer to £100,and the Pentiums were like £55 to £65.
Now,the Core i3s can dip to almost £70.
Edit!!
Another thing.
People also forget the G6950 and the Core i3 530.
The former could hit similar clockspeeds,and was cheaper than the latter.
People still recommended the latter over the former.
I wonder which has aged better?
