Topics: 10th-gen , cpu , HyperThreading , i5 , Intel , processor. Be Social With eTeknix. Send this to a friend. Send Cancel. About Us Advertise. You can see the above mix particularly in the 5th generation processors. The line between i3 and i5 has also shifted over the years and I am sure there have been i3s with hyperthreading in some generations. What I mentioned above should be taken with a grain of salt though, as there are even i7 processors which might lack hyperthreading and ones which might have low core counts, particularly in the mobile markets.
Many mobile i5s have Hyper-Threading. Many mobile i3s have Hyper-Threading. Desktop i5s do not have Hyper-Threading. Desktop i3s also do not have Hyper-Threading. These links are for the current generation. Many previous generations are similar in this regard, except for desktop i3s: They used to have Hyper-Threading.
Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. In either case disabling SMT does have a big impact in this title. Even at p the effect is significant, at least for the K. The impact on gaming performance can vary significantly depending on the game and other factors such as the resolution, visual quality settings, and of course, the accompanying GPU.
On the other hand, lower-end CPUs that rely on Hyper-Threading more heavily will see the most substantial performance loss. Even the quad-core K often suffered large performance dips in gaming tests and this means the loss of Hyper-Threading will be even more devastating for those with dual-core SMT enabled parts.
For now we can't exactly say how much of an impact the four MDS mitigations will have on performance for Windows PCs , but we can anticipate there will be some hit, and we know it'll be felt most where Hyper-Threading has the biggest impact. Phoronix has tested the mitigations on Linux and the performance hit ranges from negligible to massive.
Unless Intel can pull a rabbit out of a hat and make mitigations so effective that Hyper-Threading is left untouched, this could have disastrous consequences for those using dual and quad-core Intel CPUs that support Hyper-Threading.
For those using older hardware and not running any mission critical tasks, until attacks based on these exploits are clearly defined, perhaps the best performance option will be not to update. This is not our official recommendation but color commentary on what could be an alternative route once the corresponding updates are released. Mobile users have three distinct choices to make, which clouds the issue a bit. There are previous-generation Core M chips as well as Core i7 and i5 processors.
The Core M chips are limited to the m3 family—Intel has taken what used to be a distinct brand and folded it into the Core i7 and Core i5 families instead. This creates situations like the one shown below.
These two chips look similar, with the same cache, almost the same clock speed, and similar GPUs—but they have different operating TDPs and hence offer different user experiences. Core M launched in but never sold particularly well—OEMs often saddle the processors with aggressive high-resolution displays and extremely thin chassis, leading to mediocre battery life. Remember, high-resolution screens and ultra-thin systems with limited battery life will cost you just as much in power savings as you can get with a lower-TDP CPU—possibly more these days, since high-end chips account for a decreasing amount of power consumption.
The other major difference we want to discuss is the gap between 7th generation Core i7 and i5 core counts on mobile. Prior to Skylake 6th gen , almost all Intel chips on mobile were dual-core below the Core i7 level.
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