3
votes
3answers
2k views

Why does VirtualBox show more CPUs than available?

I have an Intel Core i7 3930K with 6 CPU cores. Now, I understand that every of that cores can handle 2 separate threads. That makes 12 virtual cores - which I can see using my system monitor (see ...
1
vote
1answer
386 views

6-core Sandy Bridge-E vs. 4-core Ivy Bridge [closed]

I am currently choosing between Intel Core i7-3770 (quad, Ivy) and Intel Core i7-3930K (6 cores, Sandy Bridge-E). This machine will be used for both work (Adobe, Autodesk software, graphic and ...
0
votes
2answers
632 views

Finding the number of Cores on my CPU in GNU/Linux

When I do cat /proc/cpuinfo I get the folowing information printed below. Can I conclude from this information that there are 8 cores in my machine? I am interested in doing some parallel programming ...
0
votes
1answer
1k views

MacBookPro Core i7 - system profiler says “Number of cores: 2”

I thought that "quad core" meant quad core. My system says that it has 2 cores, but perhaps I'm thinking of it wrong, or perhaps the OS ignores 2 cores. What do you know about the issue. (Note: Intel ...
4
votes
6answers
13k views

How to disable 2 cores on a quadcore i7?

I have a laptop with a quadcore i7 that runs hot. I don't need 2 of the cores. How can I shut them off?
2
votes
2answers
574 views

Core i7 on linux loses its multithreading capability after suspend

On my debian-linux system, with a core i7 920 , each time I resume after the command "pm-suspend" (suspend to RAM), mutlithreading capabilities almost disappear. More specifically, two distinct ...
0
votes
1answer
231 views

Available RAM per core for mobile i7 processors

On a i7-720QM or i7-820QM mobile processors, can each core access all of the available RAM (i.e. 8 GB out of 8 GB). I've heard that on certain desktop motherboards this can cause problems, but I can't ...
14
votes
2answers
2k views

Does the Intel i7 offer real improvement over its predecessors? [closed]

As the questions title asks, do the new processors from Intel offer real, as in noticeable, improvement over the previous quad core ones? What does the i7 actually offer that is new or is it simply a ...