What are 8 core CPUs from AMD

i have been hearing about them for a long time but dont know what it is ?? IS it a processor like i7 or i5 processor or whole PC with a 8 core processor and with a case...

Please explain me in detail and also tell me some of its models


and last are there any 8core processors/CPUs of INTEL

Yes, you can say they're like the i7 or i5 but the i7 is a 4 Core 8 Thread processor and the i5 is a 4 Core 4 thread Processor.
http://www.intel.com/content/www/u [...] essor.html
http://www.intel.com/content/www/u [...] essor.html

Imagine them like One Man With either 4 heads and 2 Hands per head or a man with 4 heads and 1 hand per head.
http://ark.intel.com/products/4131 [...] _93-GHz%29
http://ark.intel.com/products/fami [...] rs/desktop
These series are from Intel.

The AMD series have 8 Cores and 8 threads....
http://sites.amd.com/us/promo/proc [...] essor.aspx
http://www.amd.com/us/products/des [...] amdfx.aspx
Like a man with eight heads and 8 hands.....

Here's Intel's 8 Core
http://www.anandtech.com/show/2435
http://guru3d.com/news/intel-8core [...] enchmarks/
http://www.legitreviews.com/article/521/1/

For almost any high-end desktop application, though, and especially gaming, Intel is currently the way to go.

Just be aware that the vast majority of games only use 2 cores. There are a few games that uses 3 or 4 cores, but they are in the minority. More games will use 3 or 4 core in the near future, but they will still be in the minority.

Developing a game to use many cores is actually complex and time consuming. That also means it takes more money to develop. Current games that can use 4 cores, do not use it effectively. It's been a while, but there was an article I read back at the beginning of 2011 or late 2010 about CPU scaling in games that can use 4 cores. It showed an average of 26% performance improvement going from 2 cores to 3 cores. But just another 6% on average going from 3 cores to 4 cores.