![]() ![]() Multi-core benchmarking often entails running multiple apps in parallel rather than bringing multiple cores to bear on a single application. So even if an app is single threaded, a wider pipeline can improve its performance. Also important is the width of execution pipelines, and the wider the pipeline, the more work can get done per clock cycle. Clock frequency is the big one the higher the frequency the faster apps will run. That would be close to 290 in Cinebench single core test.Performance is measured in a couple of ways. Still, I could use close to 30% higher single core performance, but there is nothing that gives such big boost. I wonder how 9900K is as if it too drops to all core turbo speeds with even slight CPU load on other threads, then in single threaded apps it might be slower than 8086K, which is fastest together with 9900K in single core tests. It is shame that laptops don't offer same customization options in Bios, that might help a bit. I can set 4 cores to 5Ghz so that clocks speeds don't change, it is improvement when doing single core tasks, but not really noticeable unless I really seek it out, I can't remember what score was in Cinebench, but it was not over 230 I think, however with stock settings test result is 208 or something like that as it is not holding turbo too well so compared to that there is clear improvement. Surely it is measurable and depending how much CPU does per tick does define how much more work higher speed would give you, but it can be quite small difference. Of course you need to also count how much of clock speed you are loosing, something like 200Mhz is going to be less than 5% I believe, so what would be actually practical difference there? ![]() I think most that I do with computer benefits from higher single core speeds, there are then few things where more cores in addition to single core speed is great, but yeah, that is why I got 8086K, I can overclock it to perform when doing single core tasks more. In practice, performance is better with all cores set to 4.6Ghz than with default, 1 core 5Ghz and 6 cores at 4.3Ghz, because CPU drops to 4.3Ghz even with heavy load only on 1 core so easily. However in practice in most situations, 8th gen Intel 1 core turbo is existing only in theory, under very perfect conditions from my experience, in all practical use, turbo is less than 2 core turbo speed, so benchmarking 1 core at full 1 core turbo speed gives only something to show off, in practice I see 4.6 to 4.3Ghz instead of 5Ghz of turbo boost clock speeds, but sure, it is possible to run Cinebench at 5ghz 1 core most of the time, which gives nice 221 score. In such case, if your motherboard's bios has Multicore enhancement option, enabling that might help, disabling any not needed process might also help, but it is quite unlikely considering you have Lenovo. Maybe with your CPU something similar happens. So, if there is 3 cores that have load 1-5% and 1 core with 100% load, it is 4 core turbo for my 8th gen CPU and 1 core turbo for 6th gen CPU. Some overclocking oriented motherboards feature multicore enhancement which changes a bit how this works, so load on other cores is not so easily dropping single core turbo, but I really wish it would work like it did with 6th gen 4 core CPU, but added cores seem to use different % limit that is allowed on cores until load is considered 2 core load or more. With 8th gen that happens really easily, so disabling all background processes have effect on time which maximum 1 core turbo is held during 1 core benchmark. Then I have found out that 8th gen 6 core CPU is quite easily lowering turbo boost of 1 core when there are even 1% load on any of the other cores, while 6th gen did allow much more load on other cores until it was 'counted' and 2, 3 or 4 core max turbo was applied. With high performance power plan, all cores should be then at maximum possible all the times. Often load is not kept on single core, but load is cycled from one core to another, so it should go like one core maxes out, then load is moved to another core, then that maxes out and so on.
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