Shopping for a laptop or desktop? Figuring out which CPU it should have can be the hardest part. Let's take a look at two of Intel's most popular processor lines và unravel the differences.
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Most of the latest Intel chip core i5 và Core i7 CPUs have four or more cores, which is what we consider the sweet spot for most mainstream users. Many late-model desktop core i5 and Core i7 chips have six cores, và a few ultra-high-end gaming PCs come with eight-core bộ vi xử lý core i7s. Meanwhile, a few ultra-low-power máy vi tính Core i5 and Core i7 CPUs have just two. You"ll find these mainly in ultra-thin laptops.
The same rough bộ vi xử lý core nomenclature has been used for quite a few generations of hãng sản xuất intel CPUs now. Khổng lồ make sure you"re buying a system with a recent-generation processor, look for the core ix-11xxx or vi xử lý core ix-10xxxnaming structure. Some CPUs designed for thin or mainstream laptops have a "U" or a "Y" appended lớn the kết thúc of the model name, while others have a "G" followed by a number that denotes the capabilities of the chip"s graphics processing. Chips meant for power nguồn laptops tend to kết thúc in "H" or "HK"; & those intended for desktops have a "K" or a "T" at the end (or just kết thúc in a zero).
Unless you"re shopping the used-PC market, you"ll find chip core i5 & i7 chips of the 8th & 9th Generation (or older) in end-of-life/closeout systems & some budget PCs, while you"ll find 10th and 11th Generation chips in most new models. The rough guide, if you don"t want khổng lồ get in too deep: khổng lồ get better performance within each generation and within each class (Core i5 or chip core i7), buy a processor with a higher mã sản phẩm number. For instance, an Intel vi xử lý core i7-1065G7 generally has better performance than an Intel core i7-1060G7.
A Quick Word on Cache
In addition to lớn generally faster base clock speeds, bộ vi xử lý core i7 processors have larger amounts of cache (the memory installed on the chip) to lớn help the processor khuyến mãi with repetitive tasks or frequently accessed data more quickly. If you"re editing and calculating spreadsheets, your CPU shouldn"t have to lớn reload the framework where the numbers sit. This info will sit in the cache, so when you change a number, the calculations are almost instantaneous. Larger cache sizes help with multitasking, as well, since background tasks will be ready for when you switch focus khổng lồ another window.
Cache size isn"t a make-or-break spec, but it illustrates advances from generation khổng lồ generation và family lớn family. The latest bộ vi xử lý core i5 & Core i7 máy tính processors have cache sizes of 16MB or less.
Turbo Boost and HyperThreading
Turbo Boost is an overclocking feature that intel has built into its processors for many generations now. Essentially, it allows some of the chip"s cores lớn run faster than their base clock tốc độ when only one or two of the cores are needed (like when you"re running a single-threaded task that you want donenow). Both vi xử lý core i5 & Core i7 processors use Turbo Boost, with core i7 processors generally achieving higher clock speeds.
Each cpu you"re looking at will have rated base và boost clock speeds, và while higher is generally better (again: all else being equal), it depends on the specific design và cooling of the PC how long a cpu can sustain its boost speeds, how high, and on how many cores. That"s where looking at nitty-gritty performance testing comes in.
Intel Hyper-Threading, in contrast, is a has-it or doesn"t-have-it feature. It uses multithreading giải pháp công nghệ to make the operating system và applications think that a processor has more cores than it actually does. Hyper-Threading giải pháp công nghệ is used to lớn increase performance on multithreaded tasks, letting each chip core address two processing threads at the same time instead of just one. The simplest multithreaded situation is a user running several programs simultaneously, but other activities can leverage Hyper-Threading under certain conditions, such as truyền thông creation and editing work (notably, transcoding và rendering, where the software supports multithreading) và even at times web surfing (loading different page elements, like videos and images, simultaneously).
In general, all else being equal, a CPU that supports Hyper-Threading in a given family will be more capable than one that does not, if what you bởi day khổng lồ day is heavily influenced by this feature. This is even true between bộ vi xử lý core families, which means that it may be better, if your software relies heavily on multithreading, to choose a four-core chip with Hyper-Threading over an equivalent six-core without.
When shopping for PCs, alas, it"s not always easy to lớn find information on the number of cores, or the presence or absence of Hyper-Threading support, on a PC vendor"s spec list. If you can find the chip"s exact mã sản phẩm number, though, plug it intoIntel"s specs database(Opens in a new window), which will show you clock speed, core count, Hyper-Threading support, và much more.
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Understanding Integrated Graphics
Most thin và light laptops with bộ vi xử lý core i5 or bộ vi xử lý core i7 processors that aren"t gaming machines rely on integrated graphics-acceleration silicon that"s part of the CPU die. Gaming machines and certain high-end systems, on the other hand, have dedicated graphics chips that are separate from the CPU.
Core i5 & Core i7 chips come with different kinds of integrated graphics capabilities. At the low end are hãng sản xuất intel HD Graphics and Intel UHD Graphics. Iris Plus is a step up, available on many 10th-generation chips. The latest và greatest integrated graphics is Iris Xe, available on only a few 11th-generation vi xử lý core i5 & Core i7 models.