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post #21 of 35
It means that, if Intel offers one chip for $1000 and AMD offers one that is effectively identical for $500, he'll go AMD because it's cheaper. However, if Intel's chip were faster (e.g. 5960X vs 9590), he would be willing to pay the difference for the extra performance.

At least that's how I interpreted it. I could be wrong. thumb.gif

Quote:
Originally Posted by sciencegey View Post

The only reason AMD could do this was because they didn't have to worry about wasted space for an iGPU, unlike Intel.

That implies FX is a mainstream consumer chip. It isn't. It, like the iGPU-less Nehalem/Westmere/Sandy/Ivy/Haswell-E processors, is derived from rejected server Xeon and Opteron dies. An A10-7850k is comparable to an i7-4790k (both are the unlocked flagships for the mainstream socket with dies designed for consumers) while an FX-9590 is comparable to an i7-5960X (both are the unlocked flagships for the enthusiast platform derived from workstation and server dies).
Edited by CynicalUnicorn - 5/13/15 at 4:43pm
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post #22 of 35
Quote:
Originally Posted by chrisjames61 View Post

They are eight core cpu's. Each core has component to be uh, considered a core. Go read the definition of what makes up a cpu core. ALU, Control Unit, Registers etc....
Isn't that a contradiction? Cost doesn't matter but you want the same or better for your money? Seems like cost does matter then.

What i mean is i wont buy something just because it costs less. when picking out a product, as long as its inside my budget i set for myself, the cost does not factor into my decision. Its all based on performance a features. If two chips are close in performance but one costs more while also having a more feature rich platform, that is where i am going.
 
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post #23 of 35
Quote:
Originally Posted by NaroonGTX View Post

The only things that the integer units in K15 shares are the L2$, L1i $, the FPU (somewhat), and the decoder (except for Steamroller and Excavator.) Each integer unit has its own L1 data cache, instruction schedulers, ALU pipes, etc. The integer units aren't fighting for resources at all. There are physically two integer units to a module on the die, whereas with Intel's SMT (HyperThreading marketing name), the virtual threads are just using left-over resources from the actual core. That's not what's happening in CMT at all in K15 (Bulldozer.) K15 cores have their own instruction bus, data bus, control unit, and datapaths.

The reason Windoze shows it as "4 cores, 8 threads" is due to the Windows scheduler optimizations, where it treats it like a HyperThreaded processor to better allocate threads for multi-threaded workloads and such. Before Steamroller, it was more efficient to assign tasks to new modules before giving them to the second thread of any given module. So if you had a task that could handle eight threads, the 4 "main" threads would be thread 0, 2, 4, and 6.

Great explanation, Thanks!
post #24 of 35
Quote:
Originally Posted by Prophet4NO1 View Post

If two chips are close in performance but one costs more while also having a more feature rich platform, that is where i am going.

Isn't that what any sane person would do?
Quote:
Originally Posted by Xylonjay View Post

Great explanation, Thanks!


Where is the original poster? I wonder if reading Narooon's post if his anger has subsided?
post #25 of 35
Quote:
Originally Posted by chrisjames61 View Post

Isn't that what any sane person would do?
Where is the original poster? I wonder if reading Narooon's post if his anger has subsided?

I am not sure what happened to the OP or if his anger has subsided? Should be by now LOL
post #26 of 35
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I'm still subbed. I've been very busy on a project for OCN.
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post #27 of 35
Thread Starter 
Quote:
Originally Posted by NaroonGTX View Post

The only things that the integer units in K15 shares are the L2$, L1i $, the FPU (somewhat), and the decoder (except for Steamroller and Excavator.) Each integer unit has its own L1 data cache, instruction schedulers, ALU pipes, etc. The integer units aren't fighting for resources at all. There are physically two integer units to a module on the die, whereas with Intel's SMT (HyperThreading marketing name), the virtual threads are just using left-over resources from the actual core. That's not what's happening in CMT at all in K15 (Bulldozer.) K15 cores have their own instruction bus, data bus, control unit, and datapaths.

The reason Windoze shows it as "4 cores, 8 threads" is due to the Windows scheduler optimizations, where it treats it like a HyperThreaded processor to better allocate threads for multi-threaded workloads and such. Before Steamroller, it was more efficient to assign tasks to new modules before giving them to the second thread of any given module. So if you had a task that could handle eight threads, the 4 "main" threads would be thread 0, 2, 4, and 6.

I was wondering if it was how Windows saw the processor.
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post #28 of 35
Quote:
Originally Posted by tmontney View Post

Just discovered my FX-8350 is 4 cores 8 logical. It isn't really a true independent 8 core processor.

mad.gif AMD and their marketing mad.gif

It's 4M/8C. Because it's a different architecture the best way to describe it is as 4C/8T when comparing to Intel. Hindsight it gives more performance than HT in multi-threaded tasks.

To say it's 4 cores would be a dishonor to it's design, but to define it on a comparative note yes.

(Rumor) Supposed when Zen comes out it'll be 4 core to a module, but each core will be SMT instead of CMT. Separate avenues.

It's still not defined whether or not it'll be CISC, RISC or VISC based.
Edited by SpeedyVT - 5/18/15 at 3:08am
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post #29 of 35
Quote:
Originally Posted by tmontney View Post

Just discovered my FX-8350 is 4 cores 8 logical. It isn't really a true independent 8 core processor.

mad.gif AMD and their marketing mad.gif

took you that long wink.gif
post #30 of 35
Quote:
Originally Posted by ladcrooks View Post

took you that long wink.gif

The problem is that nothing clearly defines a core other than the physical premises of a core unit.

AMD wasn't wrong to say 8 cores.

But the technology to achieve their 8 core design was not thoroughly explained. What it does prove is that there are definitely way too many ways to do things in electro engineering.
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