The Age Old Debate
Thanks a lot for your response. My question is what is important in a GPU? Does processing speed and cores mean nothing?
For instance, on one hand you have a fx-8350 Viscera 4.0 ghz 8 cores ( which I currently have, which is irrelevant), and on the other hand you have the
i7-5960x. They have the same amount of cores and one is $900 more with 1.0 ghz less processing speed?! Do what? See my confusion. I obviously see there is a reason for this and that there are more forces in play. But what are they? I suspect some of this is branding which I understand. But is this strictly because of the architecture of the CPUs or is there something else I don't know?
The simplest way to put it is that it's the architecture. A CPU is more than just a collection of cores that run at a given frequency in Hz. Basically an Intel Haswell core gets a lot more done within a clock cycle than an AMD Piledriver module does. The reasons why get pretty engineering-heavy, and I probably don't know enough to explain it further anyway. But what you need to know is that you cannot compare clock speeds between different architectures to figure out what's faster. The only effective way to compare the two is to look at the performance levels they achieve in a real application, like the benchmarks I linked earlier.
The core count doesn't really matter beyond a certain point. In a program that only scales up to about four cores (which includes the majority of games), any beyond that won't really do much to help performance, and so per-core performance makes a bigger difference. On the other hand, AMD's FX CPUs can do a lot better in programs that can more easily divide up their workload between as many processors as are present. An FX-8350 is generally a faster CPU than a Core i5 for multi-core video rendering, for example, whereas it's quite far behind in most games.
i7's feature Hyperthreading, which allows each physical core to run two processing threads. Meaning a quad-core i7-4790K actually has eight logical cores, and an eight-core i7-5960X has 16 logical cores.

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