The part of a computer responsible for performing computations, often referred to as a processor.

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33
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4answers
4k views

Why are newer generations of processors faster at the same clock speed?

Why, for example, would a 2.66 GHz dual-core Core i5 be faster than a 2.66 GHz Core 2 Duo, which is also dual-core?Is this because of newer instructions that can process information in fewer clock ...
16
votes
6answers
54k views

How does Motherboard and CPU affect RAM choice?

I am seeking advice on which memory to use with my motherboard and CPU. Below are my components and some relevant information extracted from their official websites. NOTE: Although this is a very ...
34
votes
1answer
98k views

What happens if I use RAM of a faster speed than the CPU supports?

Looking at the Intel E3-1230v2 CPU, under Memory types it says "DDR3-1333/1600". My question is, in what way does the CPU limit the RAM speed? What would happen if I put in a DDR3-2133 RAM chip ...
16
votes
5answers
28k views

Is a higher core count or higher clock speed more beneficial to a computer's performance? [closed]

With lowering silicon costs and rising consumer needs, manufacturers seem to be pushing one of two things: clock speed and/or core count. With the way things are going, it doesn't seem that clock ...
173
votes
15answers
32k views

Is the performance of a CPU affected as it ages? [closed]

This is a hypothetical question about how a CPU operates. If I purchase two identical CPUs, and use one long term (say one year), will it be identical in speed to the unused CPU? Will the number of ...
37
votes
3answers
23k views

Hyper-Threading and Dual-Core, What's the Difference?

In a conversation with the network administator, I mentioned that my machine was a dual-core. He told me it was not. I brought up the task manager, went to the perfomance tab, and showed him that ...
67
votes
12answers
169k views

CPU Cores: The more the better?

I currently have a dual-core processor at work and a quad-core at home. I've noticed both PCs are pretty equal as far as launching applications/surfing the web.The difference I can see is that my ...
54
votes
9answers
110k views

Are there solutions that can limit the CPU usage of a process?

I am using an old laptop and doing heavy processing that needs high CPU usage for a long time (~30mins - 2hours). When the process puts heavy load on CPU for a long time, CPU overheats and computer ...
24
votes
2answers
106k views

What are threads, and what do they do in the processor?

I was looking at the stats for the Intel Pentium e5700 CPU. It has two cores and two threads. What do the threads do for the processor? Is there any relation between the number of cores and the ...
15
votes
8answers
12k views

How to tell if a Windows computer has a 64-bit CPU or OS

How you can check if your Windows computerHas an x86 (32-bit) or x86-64 (64-bit) processor?Is running a 32 bit or 64 bit operating system?
335
votes
15answers
178k views

Why are we still using CPUs instead of GPUs?

It seems to me that these days lots of calculations are done on the GPU. Obviously graphics are done there, but using CUDA and the like, AI, hashing algorithms (think bitcoins) and others are also ...
18
votes
1answer
40k views

How does windows “limit” the CPU (Power Options / Battery saving)

Can anyone explain how Windows effectively limits the CPU?Last time I tried some tricks to let my laptop not overheat, so I tried limiting the CPU to 70%. As for my suprise it stopped my laptop ...
22
votes
4answers
121k views

Can a 32 bit OS run in a 64 bit processor?

What's the difference between 32 bit OS and 64 bit OS? Can a 32 bit OS run in a 64 bit processor?
29
votes
5answers
40k views

Any way to tell apart a CPU defect from a mainboard defect?

I have a fairly modern desktop computer, an AMD Athlon II X2 based silent PC, that does not work.When turned on, it will start physically (all fans are rotating, disks start up...) but not give a ...
30
votes
4answers
19k views

What is hyper-threading and how does it work?

I've heard the term hyper-threading thrown around a bit recently, what exactly is hyper-threading and why is it important?

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