Solved Windows 8 not using all 8 cores - FX-8120

[iKeirNez]

It's probably allready explained above, forgive this small addition:
It's a misunderstanding: the CPU is a quad-core with hyperthreading, don't know how AMD calls that because I have Intel but it's the same: your core number doubles with the logical processor count make it 4x2=8.

You have 8 logical processors, that's what you need to know.

A zoom of the thread starter's screenshot:
View attachment 10472
So the initial screenshot says it all, you just need to know a bit the details.

Everything's OK.

You can right click on the processor graph in task manager and choose "show logical processors".
You should see all 8 of the graphs.

Thanks for clearing that up!

 

[Hopachi]

You're welcome.
Glad that all is clear now.

 

[area 66]

It's probably allready explained above, forgive this small addition:
It's a misunderstanding: the CPU is a quad-core with hyperthreading,

This in no way hypertreading and logical cores, Microsoft is in the ditch ; AMD 8 cores use 4 modules with 2 Integer units in each, and those 2 integer units share same L2 , Microsoft Task Manager is wrong in the way they indicate it, those core are not logicals like in an Intel Hypertreading CPU, they are real and group by 2 , they just share the same L2 memories

 

[area 66]

It's a misunderstanding: the CPU is a quad-core with hyperthreading, don't know how AMD calls that because I have Intel but it's the same: your core number doubles with the logical processor count make it 4x2=8.

You have 8 logical processors, that's what you need to know.

.

so if AMD have only 4 cores, and 8 logical cores how do you explain than none of the logical core have the same speed ?

Windows 8 Task Manager is misleading

and this is core temp for a AMD 8 cores and an Intel i7-2600k 4 cores , it show that Microsoft really mess up the task manager

 

[Hopachi]

My apologies. As I said, I have Intel CPU's so don't really know the AMD versions.

This in no way hypertreading and logical cores, Microsoft is in the ditch ; AMD 8 cores use 4 modules with 2 Integer units in each, and those 2 integer units share same L2 , Microsoft Task Manager is wrong in the way they indicate it, those core are not logicals like in an Intel Hypertreading CPU, they are real and group by 2 , they just share the same L2 memories

Interesting.

So there are 8 cores but Task Manager misleads us.
If all cores are used, then there's no worry. But is too bad we cannot rely on Task Manager in this case.

 

[Kebero]

On the first page, we addressed the physical architecture and how it is presented to Windows.

 

[area 66]

On the first page, we addressed the physical architecture and how it is presented to Windows.

Then Microsoft as to review the Task Manager, this is not 4 but 8 physical cores. You have to represent what it is not what they think it is, from what I see, it's again laziness from Microsoft, they adapt the Task Manager to Intel CPU only. They really cut corners with Windows 8

 

[johnling]

I have an AMD FX-8120, it is an 8 core processor but Windows 8 seems to be only be recognizing 4 of them. Here is a screenshot from task manager

View attachment 10408

It does say Physical Processors 8, but as far as I am aware it should also say it has 8 cores.

Help would be greatly appreciated!
Keir

Right click on the graph (must be on the graph) and switch graph to "Logical Processors" it will show all cores...

 

[Kebero]

Right click on the graph (must be on the graph) and switch graph to "Logical Processors" it will show all cores...

That is incorrect. 'Logical processors' does not mean 'all cores.' For example, I have a dual-core i3 with hyper-threading. If I elect to show logical processors, I see four - that is, one for each thread, not one for each core.

 

[area 66]

Can we just agree that MS cut the corners and don't include a real representation of AMD 8 cores CPUs

 

[jimbo45]

Hi there
I think if you try and check with CPU-Z it should show you what your computer is doing whatever Windows "Thinks it's doing".
The latest version of CPU-Z has been fixed for W8 and AMD processors.


CPUID - System & hardware benchmark, monitoring, reporting

Cheers
jimbo

 

[Kebero]

Can we just agree that MS cut the corners and don't include a real representation of AMD 8 cores CPUs

Why are you assuming that Microsoft 'cut corners?' Yes, the OP is not being presented with an accurate depiction of the physical CPU, but the CPU architecture of the 8-core AMD is also different from previous AMD architectures (as far as I understand it, anyway). Do we know that MS had a sample of this when they built Windows 8? I'm not a Microsoft fanboy - as much as I love Winodws 8 and Windows Phone, I opted to use Linux instead of Windows XP and Windows Vista - I just think we should try for a little fairness.

 

[area 66]

Do we know that MS had a sample of this when they built Windows 8?

come on , I have my 8 cores since more than a year now, between the Developer Preview and the final release they have plenty of time to buy one, lol Aside on a Servers 2012 Essential the task manager show 8 physical cores and 8 logical cores.

MS was to lazy to correct it on Windows 8, why peoples can't just accept it. Microsoft focus is on Tablets and Phone sales, they don't care about their desktop customers, they know corporations will not upgrade to 8 and they don't care. They just don't want Google and Apple get all the market of the toys ( tablets , phones)