AMD Hyperthreading?

[Electrick]

Do amd cpus have hyper threading? If so, which ones?

[Gofspar]

nope. :C

[lx_srs]

Do amd cpus have hyper threading? If so, which ones?

No, and why do you care? having more physical cores is better than hyperthreading anyways.

[79wjd]

the 8350 might as well be hyperthreaded

[Electrick]

No, and why do you care? having more physical cores is better than hyperthreading anyways.

I will be doing editing, rendering, using DAWs, programming, and maybe bitcoin mining. Thats why "I care." And AMD's cores are much weaker than intel nevertheless...

[Clyne]

maybe bitcoin mining

Your gonna get jack for money if your gonna bitcoin mine with your PC, F@H would be better because it's for a good cause and unlike bitcoin mining, you won't lose money from it.

[lx_srs]

I will be doing editing, rendering, using DAWs, programming, and maybe bitcoin mining. Thats why "I care." And AMD's cores are much weaker than intel nevertheless...

Yes they are. So an i7 would be a good fit for your workload.

[Aniallation]

Do amd cpus have hyper threading? If so, which ones?

The FX CPUs are somewhat similar, they are actually modules with two FPUs each. For example the 8 core FX is actually 4 compute modules, with 8 FPUs that are considered "cores"

[Guest Kloaked]

[Deletive]

Your gonna get jack for money if your gonna bitcoin mine with your PC, F@H would be better because it's for a good cause and unlike bitcoin mining, you won't lose money from it.

a little off topic but what on earth is Folding @ home? 

AMD did I believe but not anymore.

[DigitalHermit]

A friend and I had a discussion on this once...

 

Here's how we ended (non-verbatim)

 

So with Intel, you have your logical cores and your physical cores and with AMD you have your dual core modules... Basically AMD implemented "hyperthreading" on a  physical level, unlike Intel who only did it in the microcode (I think)...

[Gofspar]

I will be doing editing, rendering, using DAWs, programming, and maybe bitcoin mining. Thats why "I care." And AMD's cores are much weaker than intel nevertheless...

[79wjd]

a little off topic but what on earth is Folding @ home? 

Lending your computer resources to research 

[Deletive]

Lending your computer resources to research 

Oh okay thanks  

[connorpiper]

No, and why do you care? having more physical cores is better than hyperthreading anyways.

 

Well. Technically AMD only has 4 physical cores on the 8 core CPU. Because of the Piledriver modules. 

[lx_srs]

Well. Technically AMD only has 4 physical cores on the 8 core CPU. Because of the Piledriver modules. 

They have 8 physical cores, but only 4 modules.  I understand what you were trying to say, but others may get confused.

[connorpiper]

They have 8 physical cores, but only 4 modules.  I understand what you were trying to say, but others may get confused.

 

No, 4 Physical Cores. Those other "Cores" can be considered as Compute Cores rather than part of the module. 

[lx_srs]

No, 4 Physical Cores. Those other "Cores" can be considered as Compute Cores rather than part of the module. 

you don't seem to understand how the modules work. Two PHYSICAL CORES share a module of L2 cache.  They are all physical cores, but the fact that they have to share cache causes them to act more like a single core.

[connorpiper]

you don't seem to understand how the modules work. Two PHYSICAL CORES share a module of L2 cache.  They are all physical cores, but the fact that they have to share cache causes them to act more like a single core.

 

But they are not packaged as separate cores. Making them compute cores. Like the Core 2 Quad.  

[lx_srs]

But they are not packaged as separate cores. Making them compute cores. Like the Core 2 Quad.  

That doesn't make them "Compute cores" they're still just cores. compute cores are usually only found in APU's.

[Speedyv]

They have modules with integer cores.

 

Better than hyperthreading but not as strong individually as Intel chips

[That Norwegian Guy]

you don't seem to understand how the modules work. Two PHYSICAL CORES share a module of L2 cache.  They are all physical cores, but the fact that they have to share cache causes them to act more like a single core.

 

No, 4 Physical Cores. Those other "Cores" can be considered as Compute Cores rather than part of the module. 

 

 

You are both wrong. There are two types of logic unit per core (both for Intel and AMD and whomever else makes x86 processors) integer and floating point units. These work on different kinds of math.

 

1 Intel 'core' = 1 integer and 1 floating point unit

1 AMD 'module' = 1 integer and 2 floating point units

 

This means that for integer math, an FX-8350 is a quad core. For floating point math, it's an 8-core.

Intel is always symmetrical and WYSIWYG.

[harrynowl]

You are both wrong. There are two types of logic unit per core (both for Intel and AMD and whomever else makes x86 processors) integer and floating point units. These work on different kinds of math.

 

1 Intel 'core' = 1 integer and 1 floating point unit

1 AMD 'module' = 1 integer and 2 floating point units

 

This means that for integer math, an FX-8350 is a quad core. For floating point math, it's an 8-core.

Intel is always symmetrical and WYSIWYG.

I thought the AMDs module was 2 integer units (ALU clusters) and 1 Flex FPU which can split into 2 128bit units.

 

"core" representing an alu cluster/integer unit

 

Multithreaded Integer performance on the 8350 is pretty good which might suggest its the other way round:

 

plus they sacrificed this performance mainly for die space on the APU, and make up for it with the ingrated GPU as it's faster to do floating point operations on a gpu 

 

 

 

But they are not packaged as separate cores. Making them compute cores. Like the Core 2 Quad.  

@connorpiper Didn't the core2 quad series just have a pair of dual core conroe/wolfdale dies on board? Making them true quad cores, just for yield reasons its more effective to produce smaller dies. Presler did this too with a pair of cedar mill cores. And therefore not a "compute core" or anything like FX which uses CMT.

[That Norwegian Guy]

@harrynowl

 

I did simplify a little, but if it's the other way around I apologize, I guess I may have been trusting the wrong info. But still, it's asymmetrical, that much we can agree on. The cache as a result is also much smaller on AMD chips.

[harrynowl]

@harrynowl

 

I did simplify a little, but if it's the other way around I apologize, I guess I may have been trusting the wrong info. But still, it's asymmetrical, that much we can agree on. The cache as a result is also much smaller on AMD chips.

 

Hehe, I had to double check my sources too

 

But yes intel is a 1:1 ratio with software tomfoolery for HT.

 

I believe AMDs cache is bigger, 2MB per module (shared between the 'cores') and then 8MB as a shared L3 pool. Whereas Intel has 8mb (or 6 on i5) of L3 and then like 256k (or 512, can't remember) of L2 for each core.

 

But AMDs cache is really slow in comparison to Intels.