[ZoLKoRn] R7 vs i7 - core for core - clock for clock - Page 38 - Overclock.net - An Overclocking Community

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[ZoLKoRn] R7 vs i7 - core for core - clock for clock

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post #371 of 374 (permalink) Old 03-30-2017, 04:26 PM
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How's it unfair? They're essentially comparing the IPC, the only way to do that is to run both at the same clock speeds.

Ryzen is much closer to SL/KB IPC than a lot of people thought.

Looking forward to all the optimization that'll occur over next 12 months.......and even more excited for their X390 platform (if the rumors are indeed true).

because if you need to underclock a processor then its unfair. same if they were to underclock ryzen to compare it with a celeron.

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post #372 of 374 (permalink) Old 03-30-2017, 04:42 PM
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Originally Posted by philhalo66 View Post

because if you need to underclock a processor then its unfair. same if they were to underclock ryzen to compare it with a celeron.

Which Celeron? Compare it to any Celeron just disable the cores/smt and underclock it. Compare it to the FX line, same thing. It's all relative. Just like comparing Broadwell-E to SK/KB, adjust to same clock speed to see the improvements in IPC. It's not exact science obviously, but it's what people have done for the past 15 years+......until Ryzen got released, and all of a sudden it didn't matter anymore rolleyes.gif.

The whole point of it is to see the architecture improvements. Which for Ryzen is HUGE and bodes well for further optimization and Zen+/2.

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post #373 of 374 (permalink) Old 03-30-2017, 09:07 PM
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so they underclocked the 7700k? kinda seems unfair to me.

The comparison is essentially useless for desktop parts, but it would be very useful for comparing mobile parts. If you know Ryzen is only about 5% in IPC, then when looking at a laptop, you would know a 2.6 ghz Ryzen laptop would essentially have identical CPU performance to a 2.5 ghz Skylake/Kaby Lake laptop.

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post #374 of 374 (permalink) Old 04-02-2017, 04:01 PM
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because if you need to underclock a processor then its unfair. same if they were to underclock ryzen to compare it with a celeron.
What's problem with that? Normal reviewer would set both CPUs to the same frequency to show differences at the same speed, and then he would set it to the same different frequency to show frequency scaling. For Ryzen seting it to lower frequency is vital to remove XFR. For Intel disabling turbo just evades all crazy stuff MB can do on auto, thought a competent reviewer NEVER writes review with only auto tests.
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