Rumors

[Guest]

So hey, 

i picked up on some rumors and i would like to know more about these. They all concern amd's zen 2 line of cpu's 

First one i hear someone comment about how their infinity fabric, which if i'm correct connects all the separate cpu's to one big cpu, needs high ram memory speeds to function proper.

Second, another comment i found mystifying was the one about that amd's cpu's are treated best if you keep that at 80% of their performance.

Do these opague comments hold truth i ask you? 

[LukeSavenije]

what can i say?

 

[Princess Luna]

1 minute ago, Christiaan21-03 said:

First one i hear someone comment about how their infinity fabric, which if i'm correct connects all the separate cpu's to one big cpu, needs high ram memory speeds to function proper.

In a simplistic way to put this is true, Infinity Fabric is the technology AMD uses to link all the CPU cores together on Ryzen line up, it's latency is reduced as you increase memory frequency because it's tied to it.

 

Intel uses Ring Bus on mainstream which is a waaaaaaaaaaay lower latency method to connect cores together and is one of the reasons it's still better at games and other applications, but it's less efficient as you add too many cores to it, reason why on HEDT Intel uses yet another technology known as Mesh.

 

4 minutes ago, Christiaan21-03 said:

Second, another comment i found mystifying was the one about that amd's cpu's are treated best if you keep that at 80% of their performance.

This on the other hand has no foundation, a CPU will perform the 'same' regardless how much usage it is at, what may happen when you have it pinned at max 100% is that if your motherboard is crap or cooling is insufficient it might down clock it's frequency to keep operating however if all is good enough to keep it functioning at it's prime then it won't matter.

[GoldenLag]

19 minutes ago, Christiaan21-03 said:

Second, another comment i found mystifying was the one about that amd's cpu's are treated best if you keep that at 80% of their performance.

this sounds like massive bull. why would it matter if 20% of the clocks are idle-clocks? because it doesnt. there isnt a throughput bottleneck. so this has no foundation.

21 minutes ago, Christiaan21-03 said:

First one i hear someone comment about how their infinity fabric, which if i'm correct connects all the separate cpu's to one big cpu, needs high ram memory speeds to function proper.

yes IF the connects components to work as a single CPU or acts as a interconnect between components. 

 

IF clockspeed is linked to the Ramspeed atm. this might change with Zen 2, but atm this is the case. same way you can change the clockspeed of the ringbus on intel independantly of ramspeed. in Zen 1 and Zen + the clockspeed is linked to Ramspeed. 

 

this affects a lot of things, among them CCX-CCX latency. this being the biggest factor. 

 

24 minutes ago, Christiaan21-03 said:

Do these opague comments hold truth i ask you? 

these seem like comments about Zen 1. we dont know how stuff will affect Zen 2. 

[Guest]

2 minutes ago, GoldenLag said:

this sounds like massive bull. why would it matter if 20% of the clocks are idle-clocks? because it doesnt. there isnt a throughput bottleneck. so this has no foundation.

yes IF the connects components to work as a single CPU or acts as a interconnect between components. 

 

IF clockspeed is linked to the Ramspeed atm. this might change with Zen 2, but atm this is the case. same way you can change the clockspeed of the ringbus on intel independantly of ramspeed. in Zen 1 and Zen + the clockspeed is linked to Ramspeed. 

 

this affects a lot of things, among them CCX-CCX latency. this being the biggest factor. 

 

these seem like comments about Zen 1. we dont know how stuff will affect Zen 2. 

yea i'm not sure why it would… i guess the max clock value is also optimal clock value since ocing seems to involve adding lots and lots of volts... i'm curious to see if this will change next year though 

the zen 2 is my bad.. i guess i ment zen + 

 

[Guest]

zen+ cpu manufacture date 2017 release date 1028 … yes those are the ones i'm talking about

 

[GoldenLag]

6 minutes ago, Christiaan21-03 said:

yea i'm not sure why it would… i guess the max clock value is also optimal clock value since ocing seems to involve adding lots and lots of volts... i'm curious to see if this will change next year though 

the zen 2 is my bad.. i guess i ment zen + 

a node has an efficiencyrange. 

 

14nm glofo that is roughly 3ghz. but its not uncommon for CPUs to run above that on desktop. 

 

intel is doing that hard with the 14nm node they use. that node is not efficient at all at 5ghz. 

 

look at server CPUs, they often run right at or slightly above effiencyrange. like the Epyc 7601 or Xeon 8180

[Guest]

29 minutes ago, GoldenLag said:

a node has an efficiencyrange. 

 

14nm glofo that is roughly 3ghz. but its not uncommon for CPUs to run above that on desktop. 

 

intel is doing that hard with the 14nm node they use. that node is not efficient at all at 5ghz. 

 

look at server CPUs, they often run right at or slightly above effiencyrange. like the Epyc 7601 or Xeon 8180

Well the only thing i have to add is that i was on my way to see if i could try another energy scheme from within windows and here i found a new setting called amd ryzen power balance scheme…. In this scheme is mentioned that the lowest cpu setting is at 90% cpu use and max is at 100% atleast now i understand why my cpu is idling at higher temperature levels as it did before i decided on cleaning an reinstallling my whole pc... That is a gain …. 

Thank you @LukeSavenije 
thank you @Princess Cadence
and thank you @GoldenLag

If it wasn't for you anime/pony freaks this would have remained a mystery foreverssss! 

[LukeSavenije]

2 minutes ago, Christiaan21-03 said:

Thank you @LukeSavenije 

this is the first time i helped someone with making a joke

[GoldenLag]

7 minutes ago, Christiaan21-03 said:

it wasn't for you anime/pony freaks this would have remained a mystery foreverssss! 

Excuze me?

 

My character is from an american cartoon

[Guest]

1 hour ago, LukeSavenije said:

this is the first time i helped someone with making a joke

Sometimes your presence is enough.. not the words that come out of your mouth

 

[Guest]

1 hour ago, GoldenLag said:

Excuze me?

 

My character is from an american cartoon

ah sorry

[GoldenLag]

7 minutes ago, Christiaan21-03 said:

ah sorry

Its fine. The difference is minor anyways.

 

 

You cant tell which one of these is from an anime or from a cartoon. 

Spoiler

Jokes on you they are both cartoon characters and style doesnt dictate its origin. 

 

Also its not footage from the series, but its fan-art. But it describes the characters well

 

 

Both made by Roosterteeth btw.

 

[Guest]

yes exactly!!!