Support Board
Date/Time: Tue, 04 Feb 2025 12:41:26 +0000
Post From: CPU usage for multi-core processor
| [2014-04-11 23:15:23] |
| vegasfoster - Posts: 444 |
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Someone correct me if the following is wrong, but my understanding is that I7s, I5s, and I3s are all manufactured as the same chip, just due variances in the manufacturing process some chips will come out with faster processing speeds than others and some chips will also have defective cores. So the slower chips are locked at slower speeds and faster chips are locked at a higher speed and sold for more money. Some of the chips can go even faster than the highest marketed speed and are sold at a higher price as unlocked chips, where the speed can be manually increased by the user, called overclocking. I7s have 4 cores with hyperthreading enabled (hyperthreading means each core has 2 virtual cores, so an I7 will have 4 actual cores and 8 virtual cores), I5s have 4 cores with hyperthreading intentionally disabled, and I3s have both hyperthreading disabled and 2 of the 4 cores intentionally disabled, either or both of which may have also been defective. So, the benefits of I7 over I5 are 1) the I7 has hyperthreading enabled, 2) the I7 has an insigicantly (IMO :)) higher base clock speed on the top of the line unit, and 3) an unlocked I7 can typically overclock slightly faster than an unlocked I5. So, for Sierra Chart, if you are not running more than 4 instances of SC at the same time, or doing many other things at the same time, or max overclocking, then you likely won't benefit from an I7. |