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4 votes
0 answers
574 views

Can I reserve one core to system only?

I have a workflow where it sometimes renders my system unresponsive or slow. I deal with that by setting affinity of such demanding apps to only a handful of cores/threads (Core i7). Now I am looking ...
Qwerty's user avatar
  • 463
1 vote
2 answers
504 views

What does it mean [Cores 4] [Logical/Core 2]?

I saw a Processor which states: Intel(R) Core(TM) i7-10510U CPU @ 1.80GHz[Cores 4] [Logical/Core 2] It means it has 4 cores or 2 cores and and logical? I am a bit confused about it.
Ubiquitous Student's user avatar
1 vote
1 answer
97 views

Has CPU inter-core communication become slower?

I'd be pretty amazed if it had but maybe somebody can help me understand. I ran SiSoft Sandra Lite 2014's 'Processor Multi-Core Efficiency' test (which returns an 'Inter-Core Bandwidth' value) on my ...
Sam's user avatar
  • 180
3 votes
1 answer
2k views

Hyper-Threading (SMT) Affinity and Equality

This question goes out to the Intel gurus that I know are out there. Are both threads on a physical CPU treated equally? As we know, hyper threading on intel CPUs is a system in which each physical ...
Colin Godsey's user avatar
9 votes
4 answers
23k 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 ...
q9f's user avatar
  • 1,162
1 vote
1 answer
555 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 coding-...
creitve's user avatar
  • 135
0 votes
2 answers
891 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 ...
smilingbuddha's user avatar
0 votes
1 answer
2k 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 ...
orokusaki's user avatar
  • 1,244
5 votes
6 answers
30k 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?
royco's user avatar
  • 489
2 votes
2 answers
652 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 ...
rafak's user avatar
  • 161
0 votes
1 answer
244 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 ...
JcMaco's user avatar
  • 1,080
15 votes
2 answers
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 ...
Damien's user avatar
  • 752