Hypothetical

[jjohnthedon1]

So the 4790k is 4 cores 8 threads

How would this compare to a 5960x

With hyperthreading disabled (8cores)

I'm guessing the 8 real cores would be the a lot better but at the same clock speed how would they compare for rendering and gaming ???

[RuLeZ]

I say that roughly a  i7 4 core with HT would compare to an i7 5 core without HT.

[Godlygamer23]

The 5960X would outpace the 4790K.

[jjohnthedon1]

I say that roughly a i7 4 core with HT would compare to an i7 5 core without HT.

So hyperthreading adds roughly 25 percent performance per core proving the application supports multi core use ?

[Philcat101]

Because the 5960X has REAL cores, it would be better than just 8 threads via 4 cores

[RuLeZ]

So hyperthreading adds roughly 25 percent performance per core proving the application supports multi core use ?

I would say around that, but depends on the application.

[Philcat101]

So hyperthreading adds roughly 25 percent performance per core proving the application supports multi core use ?

?

It just adds more weaker threads

[RuLeZ]

?

It just adds more weaker threads

Yes, but he asks the performance of 8 threads compared to the i7 without HT, so with only 4 threads.

[jjohnthedon1]

Yes, but he asks the performance of 8 threads compared to the i7 without HT, so with only 4 threads.

no 8 thread vs 8 cores

[ALwin]

snip

 

While people have given a simple and generalized answers, let me put in my 2 cents.

• Hyper-threading is a method implemented in CPUs to improve their capability to multitask.
• Physical cores are actual physical cores in the CPU.

If there are 8 tasks that need to be operated in parallel, in a very simple analogy:

• Each core of an 8 core CPU might be able to operate each task in parallel.
• With the 4 core CPU, the 8 tasks might be paired off, so that there are 2 tasks assigned to each physical core.  The hyper-threading implementation within the CPU will manage it so that it appears as if each core is able to operate the 2 tasks assigned to it in parallel due to the virtual cores.

So a 4 Core 8 thread CPU and a 8 core 8 thread CPU with the same clock speed, the 8 core CPU will have better performance.

• For most games, the amount of cores matters less than the clock speeds.
• For rendering, physical cores play a larger role than the virtual threads.  So 8 core 8 threads will outpace a 4 core 8 thread, and a 8 core 16 thread CPU may have slightly better performance than the 8 core 8 thread CPU.

[RuLeZ]

no 8 thread vs 8 cores

Yes, I know.. Damn I am sleepy, but then you asked how much does the HT influences "So hyperthreading adds roughly 25 percent performance per core proving the application supports multi core use "

[Godlygamer23]

no 8 thread vs 8 cores

Technically, it's still 8 threads on both CPUs. It's just that on the 4790K, each core is executing two threads, creating a 1:2 ratio, while the 5960X is executing 8 threads on 8 cores(in this instance), creating a 1:1 ratio.

[Godlygamer23]

So a 4 Core 8 thread CPU and a 8 core 8 thread CPU with the same clock speed, the 8 core CPU will have better performance.

Assuming the architectures are the same.

[ALwin]

Assuming the architectures are the same.

 

I assumed that would already be implicit.

 

Oh and of course the application/programs running would need to be designed in such a away to take advantage of multi-cores and multi-threads.  If they are not, the CPU will be underutilized.