Same clock different power

[Shadow_Storm56]

Why can 2 chips have the same speed and cores but one complete tasks faster. like a 6 core 3930k can clock near 5ghz but a 69850k at 4.4ghz gets stuff done faster and higher bench marks. what else determines power?

[Valkyrie Lenneth]

its called better architecture/instructionsets ect

 

where a 65nm chip might have 100,000 transistors

 

an 10nm chip might have 400,000,000 in the same area * just an extreme example *   and that determines power

 

also different architectures will result into different clockspeeds , lower np manufacturing means lower power used and voltages, but also higher heat which can affect overclocking

[Guest]

1 minute ago, Shadow_Storm56 said:

69850k

I am lost help

[minibois]

It's because IPC.

[Guest]

2 minutes ago, Shadow_Storm56 said:

Why can 2 chips have the same speed and cores but one complete tasks faster. like a 6 core 3930k can clock near 5ghz but a 69850k at 4.4ghz gets stuff done faster and higher bench marks. what else determines power?

It's the instructions per second. Modern cpu does faster

https://en.wikipedia.org/wiki/Instructions_per_second

[Guest]

1 minute ago, Minibois said:

It's because IPC.

Introduction to Programming using C

[Guest]

FX 8350 8 cores 4.0 GHz

i7 6700k 4 cores 4.0 GHz

[Shadow_Storm56]

Yea it's a 69850k lol òoops more like a 6850k. sooooo cool 

[Mira Yurizaki]

5 minutes ago, Shadow_Storm56 said:

Why can 2 chips have the same speed and cores but one complete tasks faster. like a 6 core 3930k can clock near 5ghz but a 69850k at 4.4ghz gets stuff done faster and higher bench marks. what else determines power?

Later architectures can process instructions faster/better/smarter than earlier ones. Or there are other architecture differences.

 

As an example, let's take an Intel Pentium 4 vs an AMD Athlon. The Pentium 4 (the first generation one) had a 21-stage pipeline. The AMD Athlon had a 10-stage pipeline. If there is a branch in the program (an if-statement, loop, or something else), and the branch is taken, then everything in the pipeline has to be dumped because it's no longer being executed. It takes longer for a Pentium 4 to recover from this than the Athlon because of the number of pipeline stages. And this is why a 1.6GHz Athlon can keep up if not exceed the performance of a 2.0GHz Pentium 4.

[Shadow_Storm56]

Interesting. cool

[Bajantechnician]

14 minutes ago, deXxterlab97 said:

I am lost help

6850k