Article for explaining CPUs.

[OuchMyFaceyHole]

I need an article or something to explain to a friend how raw GHZ isnt the only way to show how powerful a CPU is. Something explaining Per core performance, cache, ext.

[totjup5]

This episode of Techquickie does a pretty good job, not an article but it should get the point across.

[antoainb]

This techquickie video explains that well.

 

[antoainb]

This episode of Techquickie does a pretty good job, not an article but it should get the point across.

 

 

This one too ^^^^^^

[OuchMyFaceyHole]

Thanks!

Like for uz.

[harrynowl]

The pursuit of clock speed

[Vitalius]

This is a good guide for those looking to see what is the best for them.

 

[OuchMyFaceyHole]

You guys rocking it.

[vm'N]

Imagine two math-teams.

One of the teams is called Intel-math (haswell)

One of the teams are split into 4 sections (a core essentially). Each section have 4 People to do integer math (full number like 1 & 2 & 3 & etc) and 6 people doing floating point calculations (like 1,2 & 3,14 & etc). Each of these teammembers can do one calculation per cycle. So we could in thoery do (4 + 6) * 4 calculations per cycle (most unlikely you find software that can utilize all that).

So team intel can do 40 calculation per cycle.

The other team is called AMD-math (piledriver)

This team is splitted into 4 sections (CMT cores (what AMD calls a module)). These sections are then split into 2 smaller sections (ALU cluster, essentially what AMD calls a "core"). This "mini-sections" have 2 people doing integer math. Both these "mini-sections" are sharing the floating point squad which consist of 4 people. So in theory it could make ((2 * 2) + 4) * 4 calculations per cycle.

So team AMD can do 32 instruction per cycle (in theory).

This is a VERY simplified version of how CPU works. And we are NOT considering ISAs that can help on certain task (which have a VERY big role in a CPUs performance).

[Vitalius]

(like 1,2 & 3,14 & etc).

Just a thought, in the west, we use the period where you guys use the comma and vice versa.

Your numbers look like this: 3.956.333,296

Our numbers look like this: 3,956,333.296

Weird, I know, but I'm just saying in case you or someone else is confused by that.

[vm'N]

Just a thought, in the west, we use the period where you guys use the comma and vice versa.

Your numbers look like this: 3.956.333,296

Our numbers look like this: 3,956,333.296

Weird, I know, but I'm just saying in case you or someone else is confused by that.

Yes, I'm from Europe. So we use commas. You are absolutely right. Good point

[patrickjp93]

Imagine two math-teams.

One of the teams is called Intel-math (haswell)

One of the teams are split into 4 sections (a core essentially). Each section have 4 People to do integer math (full number like 1 & 2 & 3 & etc) and 6 people doing floating point calculations (like 1,2 & 3,14 & etc). Each of these teammembers can do one calculation per cycle. So we could in thoery do (4 + 6) * 4 calculations per cycle (most unlikely you find software that can utilize all that).

So team intel can do 40 calculation per cycle.

The other team is called AMD-math (piledriver)

This team is splitted into 4 sections (CMT cores (what AMD calls a module)). These sections are then split into 2 smaller sections (ALU cluster, essentially what AMD calls a "core"). This "mini-sections" have 2 people doing integer math. Both these "mini-sections" are sharing the floating point squad which consist of 4 people. So in theory it could make ((2 * 2) + 4) * 4 calculations per cycle.

So team AMD can do 38 instruction per cycle (in theory).

This is a VERY simplified version of how CPU works. And we are NOT considering ISAs that can help on certain task (which have a VERY big role in a CPUs performance).

that math comes out to 32.

 

EDIT: was fixed.

[vm'N]

that math comes out to 32.

I do apologize. I'm very tired. I do thank you for noticing my mistake, and I have fixed it

[patrickjp93]

I do apologize. I'm very tired. I do thank you for noticing my mistake, and I have fixed it

No problem. I just wanted to make sure this wasn't an incorrectly written equation, because then I'd be more curious.

 

Either way, AMD is thankfully getting rid of CMT now that Keller is back in the driver's seat.

[vm'N]

No problem. I just wanted to make sure this wasn't an incorrectly written equation, because then I'd be more curious.

 

Either way, AMD is thankfully getting rid of CMT now that Keller is back in the driver's seat.

Yes. I'm sure he will put out a VERY efficient architecture. I think AMD mind is on efficiency instead of direct performance. But I'm very excited about his work.

[patrickjp93]

Yes. I'm sure he will put out a VERY efficient architecture. I think AMD mind is on efficiency instead of direct performance. But I'm very excited about his work.

Now if they could just bring down the wattage needed to run their CPUs and GPUs,..

[vm'N]

Now if they could just bring down the wattage needed to run their CPUs and GPUs,..

They will. They most definitely will. If they don't, they will be out of business.

[patrickjp93]

They will. They most definitely will. If they don't, they will be out of business.

If the 295x2 is any indication, I weep for AMD's future lol.