Do all CPU's of the same generation have the same single-core performance?

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Kahlo kahlow

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Jun 4, 2015
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So yeah, is it how it works? For example, do all Haswell CPU's have the same single-core performance but what differentiates the i3 to the i5 to the i7 or the pentium is the number of cores/ threads and cache? Could it be that the Pentium G3258 have the same single-core performance as a i7 if they had similar clock speed?
 
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Ecky
Basically yes. Pentiums and Celerons lack AVX instructions which can situationally give "Core" CPUs a lot more IPC in programs that utilize them. Some CPUs ship with higher clockspeeds than others so per-core performance is higher, but not per-clock performance. The extra cache on an i7 might give a couple percent over an i5.
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Ecky

Ecky

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Feb 3, 2013
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Basically yes. Pentiums and Celerons lack AVX instructions which can situationally give "Core" CPUs a lot more IPC in programs that utilize them. Some CPUs ship with higher clockspeeds than others so per-core performance is higher, but not per-clock performance. The extra cache on an i7 might give a couple percent over an i5.
 
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