This is a list with performance of some CPU's on a benchmark data. I cannot understand how to distinguish between multicore systems from multiprocessors ones. Do multicore systems have more than one enabled chip (second subcolumn in processor column).
migrated from electronics.stackexchange.com Apr 19 '13 at 11:02
This question came from our site for electronics and electrical engineering professionals, students, and enthusiasts.
Multicore means more than one core.
A single computer (motherboard) can have more than one CPU.
A single CPU can have more than 1 core.
Some cores are physical and others are virtual. The virtual ones perform ~-5%/+20% of a real one. Sometimes people disable virtual cores.
The following is an image of a CPU chip
The following entry:
Acer Incorporated Altos R380 F2 (Intel Xeon E5-2603)
2 CPU chips with 4 cores on each chip
Each core ran 1 thread
As @Mikhail pointed out:
Each Motherboard can have 1 or more processors(each processor takes one physical socket).
Each processor can have 1 or more cores(cores are internal to a processor and are not visible to the naked eye).
Referencing one of the PDF(s) on that page:
From the "platform notes":
This implies that:
Depending on the operating system, some OS(s) don't differentiate between "cpus" and "cores" and just calls them all "processors", which can be confusing. However, the output in that document is clear: 4 cores per physical cpu chip, giving you 8 cores.
Hope that helps in interpreting the information in those docs.
Just to spell out the tables from that page, because the two existing answers are already dead on and excellent answers:
Enabled Cores is total cores (Physical processors + Physical Cores)
Enabled Chips is Physical Processors.
Cores / Chip is exactly that, how many physical cores per physical processor. Cores * Chips should add up to enabled cores. (2 Processors at 4 cores per processor = 8). Threads per core is essentially is hyper threading enabled (HTT). So for the 2690 Listed below Windows would see 2 processors at 8 cores per chip with Hyperthreading enabled and report you have 32 processors, these are logical processors. You have 2 * 8 physical cores, or 16 cores.