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Is the AMD A8-5500 a Quad core or Dual core?

post #1 of 17
Thread Starter 
Is the AMD A8-5500 a Quad core or Dual core?

http://www.amd.com/uk/products/desktop/processors/a-series/Pages/a-series-model-number-comparison.aspx

According to the site it says Quad Core. But on task manager it says 2 cores (image attached)
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post #2 of 17
Quad core.

W8 lists modules as cores. Each module contains enough hardware outside of the FPU to be classified as two cores.

"Logical Processors" is the one you want.
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post #3 of 17
2 physical 4 logical

Basically its a quad core
post #4 of 17
Thread Starter 
I dont know how that works 2 cores, 4 logical cores = quad core

but all the i3 and i5 i see which are dual core say 2 cores, 4 logical cores but its still a dual core with hyper threading.

Does AMD have their own version of Hyper threading? to make the 2 cores into 4 logical cores like the Intel Core family does?
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post #5 of 17
Quote:
Originally Posted by karan.t View Post

I dont know how that works 2 cores, 4 logical cores = quad core

but all the i3 and i5 i see which are dual core say 2 cores, 4 logical cores but its still a dual core with hyper threading.

Does AMD have their own version of Hyper threading? to make the 2 cores into 4 logical cores like the Intel Core family does?
put it this way its like amd super hyper threading it pretty much equals a core

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post #6 of 17
The closest analog is two sets of conjoined twins. While legally speaking there would be four persons involved, each set of two doesn't have all the hardware that two separate individuals would possess.
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post #7 of 17
Quote:
Originally Posted by karan.t View Post

I dont know how that works 2 cores, 4 logical cores = quad core

but all the i3 and i5 i see which are dual core say 2 cores, 4 logical cores but its still a dual core with hyper threading.

Does AMD have their own version of Hyper threading? to make the 2 cores into 4 logical cores like the Intel Core family does?


Core i3 = 2 independent cores with hyperthreading

A8 = 4 cores that share some resources within a module (so windows 8 thinks they are only 2 cores)
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post #8 of 17
Thread Starter 
Quote:
Originally Posted by svenge View Post

The closest analog is two sets of conjoined twins. While legally speaking there would be four persons involved, each set of two doesn't have all the hardware that two separate individuals would possess.

So there is 2 normal physical cores with all that a modern CPU would have and there is 2 other physical cores without....(something?)? tiredsmiley.gif

Quote:
Originally Posted by edalbkrad View Post

Core i3 = 2 independent cores with hyperthreading

A8 = 4 cores that share some resources within a module (so windows 8 thinks they are only 2 cores)

That makes better sense thanks.
So do you know what resources are shared per module?
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post #9 of 17
Quote:
Originally Posted by edalbkrad View Post

Core i3 = 2 independent cores with hyperthreading

A8 = 4 cores that share some resources within a module (so windows 8 thinks they are only 2 cores)

Close, it is a true four core, but AMD has a patch that makes it appear as a Dual-Core with dual threads because each pair of two cores share a FPU. It appears like this to Windows to optimize the performance.
post #10 of 17
Im a bit sleepy and cant find any diagram for the i3 but check this out:

Think of the left one as a standard dualcore cpu like i3, Core2duo and Athlon X2
The right one is a bulldozer module, similar to those inside Trinity A8 quadcore

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