Intel claims Core i9 9900K is the “best gaming processor”

[DanceswithUnix]

Quick nit-pick. Speculative execution is the root of the vulnerability, not OoO.

Whilst strictly speaking true, in reality that advanced speculation (even the P5 had branch prediction which could be classed as a form of speculation even though the implementation was like most parts of that chip hopelessly buggy and badly designed) only occurs in OoO designs. eg:

ARM A53 is in order and safe.
ARM A15 is OoO and vulnerable.

I have yet to hear of an in-order part that is vulnerable.

... as IIRC the 486's were the last non-out of order CPUs (out-of-order execution is the root of the vulnerability).

P5 was in-order, the Pentium Pro was Intel's first OoO design (K5 was AMDs, at least in the later masks when they got it to work).

[Corky34]

Quick nit-pick. Speculative execution is the root of the vulnerability, not OoO. There are plenty of modern OoO designs that don't do spec ex and are not vulnerable (a lot of the lower-end ARMs, for instance). The original Pentium and Pentium MMX lacked spec ex, that came in with Pentium Pro/Pentium II and AMD's K6. So you can use mainstream x86 processors up to 1995, in fact

Yea i wasn't trying to say they are vulnerable, simple that from a theoretical standpoint they could be.

Also I'll take your nit-pick and raise you a pick-nit. Speculative execution couldn't (at least i don't think it could) exist without OoO execution as you can't be 100% sure what you're executing out of order is what's actual going to be executed (at least that's what seems logical to me).

[maksudmasud1]

What is the difference between 8600k and 9600k?

The difference is speed