what are cores in cpu

[google-fiber]

if i have a 2 core cpu with 3.0ghz and u have 4 core cpu with 3.0ghz and our friends has 6 core cpu with 3.0ghz... what will be the difference... will ur computer be faster... runs games smoother... and i have intel pentium g620 2.6 ghz... where is the cores in my cpu

 

[Marijus]

Not always more cores = better performance in gaming but of course it's better in rendering.
Newer gen games are requiring 4 cores some only 2.
More cores will faster deal with tasks

 

[Tom Waller]

Depends if you're rendering.
The cores are the units that read and execute program instructions. However more is not always better. More cores are only better if you're using them and keeping them busy. Cores can influence performance if a program supports them but even then that doesn't always matter. Intel CPU's are more efficient at handling tasks than AMD. What AMD gives you is more performance for your $$.

 

[rgd1101]

Software use threads not cores, and like Tom said, Intel is more efficient than AMD that why even with less cores Intel still come out ahead most of the time.

 

[johnmanth]

Well, a "core" is the processor itself. The place where are the calculations are performed.
More cores = better multitasking, higher tdp
Now if you have 2 cores running at 3ghz this means that your cpu has 2 cores BOTH running at 3 ghz
If you have 4 cores at 3ghz it means you have 4 cores ALL running at 3 ghz
etc...
Performance: It depends on the architecture, atchitecture is how many instructions will be executed every hz(1 ghz = 1 billion hz/seccond)
When you reach a quad core (or dual core with hyperthreading) then games will not get a very big performance jump.
Your cpu is a dual core.
And an example of the architecture effect=
6 core cpu with slow architecture running at 4 ghz < dual core with hyperthreading with faster architecture running at 3.5 ghz

 

[google-fiber]

Well, a "core" is the processor itself. The place where are the calculations are performed.
More cores = better multitasking, higher tdp
Now if you have 2 cores running at 3ghz this means that your cpu has 2 cores BOTH running at 3 ghz
If you have 4 cores at 3ghz it means you have 4 cores ALL running at 3 ghz
etc...
Performance: It depends on the architecture, atchitecture is how many instructions will be executed every hz(1 ghz = 1 billion hz/seccond)
When you reach a quad core (or dual core with hyperthreading) then games will not get a very big performance jump.
Your cpu is a dual core.
And an example of the architecture effect=
6 core cpu with slow architecture running at 4 ghz < dual core with hyperthreading with faster architecture running at 3.5 ghz

i didnt understand very well, so lets say photoshop needs 3.0ghz and internet explorer also neeeds 3.0ghz, if u want to use them at the same time, will u have to get 2 cores?

 

[johnmanth]

Well, a "core" is the processor itself. The place where are the calculations are performed.
More cores = better multitasking, higher tdp
Now if you have 2 cores running at 3ghz this means that your cpu has 2 cores BOTH running at 3 ghz
If you have 4 cores at 3ghz it means you have 4 cores ALL running at 3 ghz
etc...
Performance: It depends on the architecture, atchitecture is how many instructions will be executed every hz(1 ghz = 1 billion hz/seccond)
When you reach a quad core (or dual core with hyperthreading) then games will not get a very big performance jump.
Your cpu is a dual core.
And an example of the architecture effect=
6 core cpu with slow architecture running at 4 ghz < dual core with hyperthreading with faster architecture running at 3.5 ghz

i didnt understand very well, so lets say photoshop needs 3.0ghz and internet explorer also neeeds 3.0ghz, if u want to use them at the same time, will u have to get 2 cores?

Well, the ghz dont realy play a role, as i said architecture is the most important thing, photoshop is a very heavy software as we all know so probasbly it will utilize a core at 100% so if you want to do something else at the same time then yes you need more cores