How can my CPU be running faster than the maximum speed?

[kris123456]

hey.in task manager i see my cpu speed is 4,14 ghz but maximum speed is 3,8 ghz.why is that so?and when i play a game or stress test cpu, then it goes only 3,4 not 3,8 ghz.
i have set multiplier to x38 and enabled intel turbo boost.

cpu core i5-3570s (stock cooler)

 

[Ecky]

CPU frequency = base frequency (usually 100mhz for Intel) x multiplier. If your CPU is running higher than 3.8ghz, either your base frequeny or multiplier (or both) have been changed.

When you're seeing your CPU drop down to 3.4ghz, that's Intel's normal turbo behavior. In tasks that use fewer cores, the frequency can go higher, allowing more performance within the same maximum power envelope.

 

[kris123456]

CPU frequency = base frequency (usually 100mhz for Intel) x multiplier. If your CPU is running higher than 3.8ghz, either your base frequeny or multiplier (or both) have been changed.

When you're seeing your CPU drop down to 3.4ghz, that's Intel's normal turbo behavior. In tasks that use fewer cores, the frequency can go higher, allowing more performance within the same maximum power envelope.

i havent change base frequency and multiplier, it is 100mhz and multiplier is max ( x38 )

when game uses 4 cores , then its max is 3,4ghz ?
when less then 4 cores, then it can go max 3,8ghz ?

 

[Ecky]

That's right.

 

[kris123456]

That's right.

but is it possible when gaming all 4 cores are 3,8ghz?

 

[Ecky]

No, unless you overclock. You would need to change the multiplier.

 

[kris123456]

No, unless you overclock. You would need to change the multiplier.

can`t overclock that cpu.this is non-k cpu and i dont have that kind of motherboard that allows change base clock.

 

[Ecky]

All 1155 CPUs are partially unlocked, but you're right in that you'd need a P- or Z- chipset.

 

[kris123456]

All 1155 CPUs are partially unlocked, but you're right in that you'd need a P- or Z- chipset.

can you suggest some cheap mobo?

 

[Ecky]

Socket 1155 boards are long discontinued, you'll have a hard time finding one, and when you do, it'll be for far more than it's worth.

 

[Calvin7]

Basic motherboard models with H61 chipset, socket LGA 1155 are readily available at retailers.

LGA 1155 motherboards with better chipsets can be found on eBay.

 

[Ecky]

Basic motherboard models with H61 chipset, socket LGA 1155 are readily available at retailers.

LGA 1155 motherboards with better chipsets can be found on eBay.

How much can you get a Z77 board for?

 

[Yansag_1982]

hey.in task manager i see my cpu speed is 4,14 ghz but maximum speed is 3,8 ghz.why is that so?

task manager never report the clockspeed right...it's a comon known problem...