1 I'd be happy with just 8 cores at 5GHz!

2 Have I got a deal for you!

(Don't buy it.  It...  Well, it doesn't really suck, but it's certainly not worth building a system around.)

3 My son's been using an i5-3570K for the last 4-5 years.  Around January it stopped booting (that is, you could get into the BIOS and see the hard drives, but it wouldn't boot to any of them.  I decided to build him a new PC--an i5-8400, because it was a decent upgrade.
Then I delidded the 3570K and replaced the thermal paste with something better.  I don't have a spare case nor extra fans to put it in so I can't do proper testing its limits but I set it to 4.5GHz, changed nothing else, and ran Prime95.  Didn't seem to have any problems except that after about 5 minutes the temps started going up, and up, and up, and I stopped it at 93 degrees.  Presumably if I'd had a better cooling solution than one Hyper 212 Evo it would've peaked at a lower temp.
Not an 8-core 5GHz but we're getting closer.  IIRC the limited-run i7-8086K will do an all-core 5GHz turbo with sufficient cooling, but it's only a 6-core.

4 There's nothing amazing coming out just now, but last year was great and it looks like next year could be even better.  We could be seeing 8 core mainstream desktop CPUs from Intel, and 12 or even 16 cores from AMD.

Plus PCIe 4.0 should start rolling out, which will effectively double the I/O bandwidth for new PCs.

5 It figures--I just had a new PC ordered at work.
However I got an i7-8700, so it'll be a huge step up from the Haswell-era PC I'm using now.
I mean, you wind up always buying something that's almost immediately obsolete anyway, but at least I managed not to get an i5-7200 or something to replace my 4590 or whatever it is.  Also I got more RAM, an SSD, and two new monitors that are an upgrade from what I'm using now.

6 The 8086 is truly a limited edition - I've heard they're only making 50,000 of them. 


The 8700 is still the top Intel mainstream part, by no means obsolete...  Yet.

7 Wow that's a lotta heat to dissipate. I have a 250W heater to warm my feet in the winter, so 1/2 the year I'd be set. 35CFM air flow too, like having a vacuum cleaner running next to you. Have to bolt it down so it wouldn't fly away, lol! I think I'll wait a bit longer.

8 If 7nm stays on track, next year's model should cut that to 150W and improve clock speeds.  This is only for people who really need it.

I had two 125W CPUs running under my desk for about four years.  Nice during the winter months.  Now replaced both with a single 65W 8 core Ryzen.