Question New CPU speed faster than higher old?

[spinningstill]

Curious to know why a new i7 (2025) is 1.8 but and old (2012) i3 is 1.9. But the new one is way faster.

Both are laptops same company Samsung Galaxy (New) vs Samsung (no name).

G

 

[USAFRet]

Curious to know why a new i7 (2025) is 1.8 but and old (2012) i3 is 1.9. But the new one is way faster.

Both are laptops same company Samsung Galaxy (New) vs Samsung (no name).

G

'GHz' is only part of the equation.

Instructions Per Clock (IPC) also counts. A lot.

That is...how much can the processor do per clock cycle?

Scenario - You need to transport 50 people 100 miles away.
Choose between a Mustang that can go 130mph, but can only carry 3 passengers at a time.
And a bus that only goes 60 mph, but can carry all 50 at once.

Which gets the job done faster?

 

[kanewolf]

Curious to know why a new i7 (2025) is 1.8 but and old (2012) i3 is 1.9. But the new one is way faster.

Both are laptops same company Samsung Galaxy (New) vs Samsung (no name).

G

Efficiency in handling the instructions (more instructions per clock). Faster cache, faster RAM, faster interconnect. And an i7 will have more physical cores.

 

[Roland Of Gilead]

Hey there,

It simply boils down to being able to do more with less. The newer CPU architecture will have low base speeds like above. But, they may boost higher, and can do more at a given clockspeed. Doing more means IPC. The newer chip has better IPC and multicore processing. Even though the core counts may remain the same.

 

[kanewolf]

Hey there,

It simply boils down to being able to do more with less. The newer CPU architecture will have low base speeds like above. But, they may boost higher, and can do more at a given clockspeed. Doing more means IPC. The newer chip has better IPC and multicore processing. Even though the core counts may remain the same.

Actually, I should have mentioned, way more advanced, and active thermal management on-chip. That is what provides the capability to boost clock speeds 2 to 3x above base clock.