Why does ghz matter

Sep 18, 8 0 4, 0. What is the difference between a Core i7 K at 3. Isn't ghz all that matters or is there more to it? Heinzen Distinguished. Apr 18, 3 18, The core clock or GHz as you said , is just a rough measure of performance - obviously it determines how fast a CPU cycle happens, but that doesn't mean that 2 processors running at the same core clock will have the same performance.

There are quite a few things that matters when talking about performance. IPC instructions per cycle - which is literally what the name suggests, how many assembly instructions a CPU can perform in a clock cycle. The bandwidth is the throughput ratio of data that the CPU can communicate with a different component - a memory controller for example. Cores and Threads - essentially each thread can handle a different task. The more threads your CPU can handle at once, the 'faster' it can finish a certain task.

Please note that multi-threading is highly dependant on how the software was coded, it's not entirely up to the processor. For an end-user such as yourself, generally you want to see whether your tasks can make use of multi-threading and if they can, how many threads your CPU can handle at 'once' , how fast each CPU core is and how big the Cache memory is.

Mar 16, , 9, , 22, NotAPCElitist :. DonkeyOatie Champion. Sep 16, 12, 0 50, 2, Depends on what you are doing with it. Like a car, is r. A CPU consists of cores or Modules. A Pentium has two, the i7 you mentioned has six.

As a base, the Pentium core runs faster clock, However there are many other differences. The is a bit older, so it is a bit less efficient closing the gap a little for each core The has fewer and different resources available to it closing the gap more and even reversing things for each core. The K has Turbo Boost, so can increase speed on any core to 3. The Pentium cannot. The K can be overclocked significantly and safely to at least 4.

At stock one core in a G has similar performance to that of an i7 both running light work at stock. Anyone wanting only to browse the internet would be foolish to get the i7. However, when things get demanding The can process two threads at full speed at once. It can handle more, but has to 'juggle them' more slowly. The K can process about 8. The K can handle more too and has to 'juggle' but it is a lot better at it than the Pentium. A person whose main work was video editing, computation heavy graphics would be a fool to get the G For modern gaming, more than two threads are needed, so again, the G is lacking.

In this discussion we are considering two CPUs of very similar architectures and generations from the same manufacturer. When any of these things changes, architecture, generation, or manufacturer, the comparison becomes a lot more complex. Jun 20, 21, 8 85, 4, Thus an 8-core AMD with lower performance per core would do better than a fast Intel dual-core for Handbrake but again in Starcraft 2 and other games the dual-core Intel might win since the games again might only use cores well.

Hyperthreading: This is when the same core is running a second task during the time it would otherwise be idle getting new data to process. An i is an example. The program must still be able to run enough threads to benefit. Hyperthreading can even cause STUTTER issues in games if the main game thread gets assigned to run on the virtual core which has less processing power.

Summary: So it gets confusing. Rather than repeat the first comment I thought I'd supplement it. Davinlevey Reputable. Oct 23, 0 4, Here is a rough explanation of why the clock speed isn't the only factor: The frequency Ghz is how frequent the "clock" the processor is running at ticks in a second.

Each of those clock ticks the processor performs an action, and each processor technology handles those actions differently, some are more efficient than others. The for the most part the newer ones are better in this, and Intel does this better per core. However, higher frequencies allow data to be transmitted faster than lower frequencies, so the 5 GHz band allows you to upload and download files faster. The base clock is often very low on a laptop to help conserve energy. Modern laptops rarely ever run always at 2.

If yours does then expect subpar battery life but very good performance. Yes, it is good! Espescially on a 8 core processor like this. However I will just like to note, if you are getting a good CPU cooler you can probably over clock this to about 4. For gamers that also create content, stream, or even play music in the background, higher capacity RAM kits are a great addition.

Begin typing your search term above and press enter to search. Press ESC to cancel. Ben Davis February 18, Does GHz matter in processor? Is GHz the speed of a processor? What does 1ghz processor mean?