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lower core count CPU's: higher overclocks possible?

 
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post #1 of 3 (permalink) Old 06-22-2020, 01:55 AM - Thread Starter
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lower core count CPU's: higher overclocks possible?

Generally, in the past, I had thought lower core count CPU's, say 4 cores/8 threads (e.g. the infamous 4790k) had higher core overclocking thresholds. Can the 8600k and 9600k generally overclock higher than 8700k's and 9900k's?
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post #2 of 3 (permalink) Old 06-22-2020, 02:14 AM
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coolingt limits performance

Lower core counts mean less cooling. On monolithic chips (Intel) core counts on a die share the same heat dissipation surface. Some benefit to buying models with some cores disabled. On AMD chiplet architecture, designs with more chiplets spread out the heat output. So, with a proper larger sized water cooler, a 24 core threadripper has better heat dissipation than a 16 core 3950. On models with identical number of chiplets, disabling some cores is likely to allow more overclocking headroom. Can be partly offset by manufacturer binning parts(e.g. 3950 vs 3900) to use better components in more expensive model. Can generally disable some cores or disable Hyperthreading/SMT function and speed up remaining threads slightly
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post #3 of 3 (permalink) Old 06-22-2020, 02:47 AM
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Quote: Originally Posted by 8051 View Post
Generally, in the past, I had thought lower core count CPU's, say 4 cores/8 threads (e.g. the infamous 4790k) had higher core overclocking thresholds. Can the 8600k and 9600k generally overclock higher than 8700k's and 9900k's?
Often lower core/tier in the same family is lower binned. That's why often the top model is overclocking the highest, and using less power per core.

CPU24/7) 7980xe - 7900xMOBO: ASUS Rampage Apex x299 / Asrock Taichi x299RAM: 4x 3600c15 / 4x4266c19/ 4x4000 c17 GPU: 2x MSI tri X 2080ti / 1060tiSTORAGE: Areca 1883i HDD R6 + Samsung 850PROs R0 - 3x SM961 nvme 1TB - 3x Intel Optane 900p 480GBCASE: LD cooling V8 R/B / ld cooling reverse R/BMonitor: Acer x34 /Asus 27 AQ 4k g-sync / Asrock x570 Taichi / 3900x
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