Does core count matter

[Ebony Falcon]

Hypothetical  9700k at 5ghz vs a single core at 40ghz for streaming 

 

does having more more cores and threads have an impact over less faster cores ? 

[FloRolf]

Well more cores can do more things simultaneously, so for steaming and gaming a 40ghz single core wouldn't be very good. 

[Rhaemond]

13 minutes ago, FloRolf said:

Well more cores can do more things simultaneously, so for steaming and gaming a 40ghz single core wouldn't be very good. 

Pretty much this. Imagine cores as pathways and when one gets congested, you still have others that can still be used. Alternatively, processes can easily be distributed between cores in order to make the flow better thus, more performance and less lag.

[Ebony Falcon]

13 minutes ago, Rhaemond said:

Pretty much this. Imagine cores as pathways and when one gets congested, you still have others that can still be used. Alternatively, processes can easily be distributed between cores in order to make the flow better thus, more performance and less lag.

Ok cool  imma do some testing later lol

gona run one core at 4ghz then 4 cores at 1ghz and run r15/20 and some video editing stuff see how it goes 

[Rhaemond]

3 minutes ago, Ebony Falcon said:

Ok cool  imma do some testing later lol

gona run one core at 4ghz then 4 cores at 1ghz and run r15/20 and some video editing stuff see how it goes 

Yea pretty much software such as cinebench can give you scores on your CPUs performance. But pretty much, I'd bet on the more cores. More cores = more power unless it's a very old multi-core processor.

[SupaKomputa]

40ghz single core will be very hot.

one of the reason to have multi core is to spread the load, so it would not overheat the chip.

[FloRolf]

16 minutes ago, Ebony Falcon said:

Ok cool  imma do some testing later lol

gona run one core at 4ghz then 4 cores at 1ghz and run r15/20 and some video editing stuff see how it goes 

Please show your results here mate and tag me

I'm saying the result in Cinebench should be within margin of error. However in pure gaming the single core would succeed while streaming the multi core wins. 

[LeoTian]

IMO,if we ignore the heat,they should perform the same and the single core maybe even faster(depend on the optimization for multi-core)

[Mira Yurizaki]

3 hours ago, Ebony Falcon said:

Hypothetical  9700k at 5ghz vs a single core at 40ghz for streaming 

 

does having more more cores and threads have an impact over less faster cores ? 

If you cannot saturate the i7-9700K with equal loading tasks, the single core would actually be faster. If we assume this single core processor has the same IPC as the i7-9700K, then lets take the following scenario. For simplicity's sake, I'm excluding Hyperthreading 

• Task A comprises of 8 threads, each taking the i7 1, 2, 3,... 7, 8, seconds to complete.
• Task B comprises of 6 threads, each taking the i7 1, 2, 3, 4, 5, 6 seconds to complete
• Task C comprises of 8 threads, all of them taking the i7 one second to complete.
• Task D comprises of 6 threads, all of them taking the i7 one second to complete.

So the completion time is:

• Task A:
  • i7-9700K: 8 seconds (slowest task)
  • 40 GHz CPU: 4.5 seconds (total time divided by the speed-up factor, or 8 in this case)
• Task B:
  • i7-9700K: 6 seconds
  • 40 GHz CPU: 2.625 seconds
• Task C
  • i7-9700K: 1 second
  • 40 GHz CPU: 1 second
• Task D
  • i7-9700K: 1 second
  • 40 GHz CPU: 0.75 seconds

This does not account for context switching, cache coherency syncing, and other overhead the CPU needs to do.

Edited June 21, 2019 by Mira Yurizaki

[Ebony Falcon]

6 hours ago, FloRolf said:

Please show your results here mate and tag me

I'm saying the result in Cinebench should be within margin of error. However in pure gaming the single core would succeed while streaming the multi core wins. 

I will but currently I’m in bed dying from flu