0
votes
1answer
47 views

Which instruction set do I have? [duplicate]

I've recently had some issues with my Dell Vostro laptop and Dell sent me out some OS discs to reinstall Windows 7 Ultimate SP1. I expected to get 64-bit discs in the mail, but instead received ...
-1
votes
3answers
110 views

Defining 32-bit or 64-bit processor requirements [duplicate]

My knowledge of computer hardware is fairly extensive, however it is apparent that this is not the case when considering types of operating systems. I've gone by the rule of thumb for years that if a ...
-3
votes
2answers
193 views

Is Intel(R) Core(TM) i5 CPU 750 @ 2.67 GHz a 64 bit Processor?

How do i know if my pc can run 64x bit? I have problems with 32x bit so i need 64x bit. I have a: Intel(R) Core(TM) i5 CPU 750 @ 2.67 GHz I've tried to find some help on the internet, and on ...
-5
votes
2answers
86 views

Is it possible to run an x64 binary on an ARM processor? [duplicate]

Suppose you have an ARM embedded device and a x64 based laptop. Both systems are running GNU/Linux. If you decide to copy the "ls" binary from the laptop to the embedded device and run it on the ...
0
votes
0answers
107 views

installed 64-bit W7 on Core 2 duo slow pc

CPU: Intel Core 2 Duo P7350 2.00Ghz RAM: 3GB Hi I recently cleaned and installed Windows 7 on my 3 year old laptop. And it seems most programs are running incredibly slow when starting up a program ...
14
votes
2answers
265 views

Are 64-bit processors “faster” than 32-bit ones, simply because they are 64-bits? [duplicate]

I have pondered that some say "32-bit is old news" because you are limited in RAM without cutting around, such as with PAE. Assuming first that the following factors weigh in on the processor's speed ...
-1
votes
1answer
54 views

x32 and x64 architecture difference in operating with numbers

For example in Java programming language we can use int (32 bit) or long (64 bit) values. As I understood 32 bit cpu can operate with 32 bit numbers in one cycle. There is 32-bit and 64-bit cpu's. So ...
1
vote
2answers
66 views

How does the CPU Cache fit in this?

So I understand a little bit on how it's all wired together. Instructions are stored in Registers and the EIP/RIP points to Opcode that manipulates those registers (program code). However I can't ...
283
votes
18answers
100k views

If 32-bit machines can only handle numbers up to 2^32, why can I write 1000000000000 (trillion) without my machine crashing?

32 bit computers can only store signed integers up to 232 - 1. This is why we have run out of ipv4 addresses and have entered the 64 bit era. However, the number 232 - 1 (2,147,483,647) is not as ...
0
votes
3answers
152 views

64 bit Windows 7 and driver installation [duplicate]

I am planning to install the 64 bit version of Windows 7 OS and just wanted to confirm if the OS would install the drivers for my system automatically or I'll have to install them manually after the ...
0
votes
0answers
52 views

Does Windows know how to appropriately assign threads to a quad-core processor that has Hyper-Threading on?

So, I have been trying to google for this answer, but I cannot find a direct technical answer to the question. (Or if it did, it was in a confusing way) So, say you have a program/game that uses 2 ...
0
votes
1answer
222 views

Why my lenovo i5 laptop perform poor as compared to my i3 desktop [closed]

I have lenovo laptop and desktop which has following configurations: LENOVO LAPTOP: i5 3250 3rd gen cpu @ 2.60GHz 2.60GHz 64 bit architecture window 7 32 bit 4 GB Ram Desktop: core(TM) i3 540 @ ...
3
votes
3answers
1k views

Latency of CPU instructions on x86 and x64 processors

I'm looking for some table or something similar that could help me to calculate efficiency of assembly code. As I know bit shifting takes 1 CPU clock, but I really looking how much takes addition ...
3
votes
2answers
2k views

Why does CPU Time for the System Idle Process increase *faster* than the wall clock?

My computer has been up for 30 min but task manager shows that CPU Time for System Idle Process at 1:30 plus. Every second it advances another 3 or sometimes 4 seconds. The machine is also running, ...
0
votes
1answer
691 views

Intel E7500 OS supports

I have an Intel E7500 processor on a HP Compaq 6000 Pro MT PC. Processor info in msinfo32.exe shows this: Processor Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz, 2933 Mhz, 2 Core(s), 2 Logical ...
-4
votes
3answers
395 views

Is this system 32 bit or 64 bit? [closed]

I would definitely say that this system is 64 bit but the owner says it's 32. The computer is a Dell Optiplex 960 which comes both in 32 bit and 64 bit versions but I installed windows 8 64 bit ...
5
votes
5answers
6k views

How many memory addresses can we get with a 32-bit processor and 1gb ram?

How many memory addresses can we get with a 32-bit processor and 1gb ram and how many with a 64-bit processor? I think that it's something like this: 1GB of ram divided by 32bits or divided by 4? to ...
1
vote
4answers
4k views

64-Bit Supporting Processor and 3GB RAM. Should i go for Windows 8 32-bit or 64-bit?

This might sound like a duplicate but i couldn't find a clear answer in any of the questions answered in this site or any other. I have a laptop with AMD Athlon(tm) II Dual-Core M320 processor which ...
0
votes
1answer
3k views

Intel Atom D2500, 64-bit mode

I have an Intel Atom D2500 processor which the spec site claims it supports a 64-bit instruction set. However, cpuinfo shows this: # cat /proc/cpuinfo | egrep "(processor|flags|address)" processor ...
7
votes
2answers
1k views

Why don't we have 33-bit CPUs? [closed]

I have seen that CPU's and operating systems have moved upwards in terms of bits from 8-bit to 16-bit, to 32-bit and currently to 64-bit. I understand that this change is to increase the maximum ...
0
votes
1answer
221 views

Which Official ISO do I Download?

I wanted to do a clean install of my Win7 after I get my HDD so I decided to download the Official ISO from here.I got this link from HP's website. I have the product key with me but not the discs ...
2
votes
3answers
1k views

Is my laptop processor 64bit?

I have a Lenovo Ideapad Y510. I have always used 32bit OS in it. Yesterday I came across this detail of my laptop and it says processor of my laptop is 64bit (hope I have not misinterpret anything) so ...
2
votes
2answers
6k views

atom n2600 is 64 bit or 32 bit?

I look at the intel spec sheet. It says that the processor has a 64 bit instruction set. However, running uname -m results in i686, and running grep flags /proc/cpuinfo indicates that each ...
0
votes
1answer
450 views

What CPU is good for single-threaded performance?

I have an app, which is single-threaded. The source code is not available. The people who managed it before me didn't really understand the whole "single-threaded" business and bought a ridiculously ...
2
votes
1answer
318 views

“nop; jmp short” vs. “jmp short; nop”

Ok, first let me get this straight: This is not about micro optimization. But, I know in bootloaders on the partition, a lot use the jmp short; nop coding. But it is to my understanding that the less ...
2
votes
2answers
9k views

Can 64-bit software run on 32-bit OS?

I have a 64-bit machine that has Windows 7 32-bit and Ubuntu 32-bit installed as a dual boot setup. Can I run 64-bit software on top of these 32-bit OSes, or are they a "bottleneck" limiting the true ...
0
votes
2answers
4k views

32bit vs 64bit is a property of CPU, motherboard or both? [duplicate]

Possible Duplicate: Does a motherboard have to support 64-bit or is it just the CPU? For computer, being 32/64bit is a property of CPU, motherboard, or both? How do I recognize that ...
4
votes
3answers
3k views

What Ubuntu is better for an i5 CPU? 32 or 64 Bit?

I want to install Ubuntu 64 Bit on a i5 CPU, but I'm not sure how the 64 Bit version performs now. How good is the application support for it? Are there any issues to be aware of? In general, is ...
-1
votes
1answer
114 views

Understanding 64 bit [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems From my understanding, saying that a system is 64 bit means that it has a processor that recognizes and handles the x64 instruction set ...
1
vote
1answer
671 views

Does using a hexacore CPU make sense?

I'm currently planning to upgrade my computer system and I want to exchange CPU, board and RAM. I already had a look at some hexacore-CPUs from AMD and would like to know if it makes any sense to use ...
3
votes
4answers
500 views

Why are so few applications 64-bit? [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems I've come to realize nearly every application I use is for 32-bit processors. Why are most programs still like this, considering almost all ...
6
votes
1answer
4k views

How to slow down my CPU?

I have Vaio Z-690 laptop, and its processor speed is 2.66 GHz. I don't need too much speed, and I'm OK with 2 GHz or even less. Just for browsing websites it's enough. I want to slow down ...
2
votes
1answer
472 views

When the term 'x86' is used, does it always refer to 32-bit?

When the term 'x86' is used, does it always refer to 32-bit? And is it only about Intel processors?
2
votes
2answers
176 views

AMD K8 vs. AMD64

How can AMD K8 and AMD64 describe the same processor? Are AMD K8 and AMD64 the same thing?
3
votes
2answers
2k views

Is the Athlon 64 X2 (W) 4600+ 2.4 GHz a 64-bit processor?

I have an Athlon 64 X2 (W) 4600+ 2.4 GHz processor, with Windows XP 32-bit. I have read that the AMD 64, is actually a backwards compatible (32/64) processor, so you can run either Windows 32-bit or ...
1
vote
3answers
1k views

32-bit and 64-bit CPU/OS [duplicate]

Possible Duplicates: how to know if a computer is 32 bit or 64 bit 32-bit v/s 64-bit systems Hi, This 32-bit and 64-bit thing baffles me. It's not often that I run across it, but when I ...
1
vote
4answers
8k views

64 or 32 bit mac?

How can I find out if my iMac is 32 or 64 bit? The "About this Mac" screen tells ms: Model Name: iMac Model Identifier: iMac11,2
4
votes
5answers
4k views

Does 32bits Windows run slower on a 64bit CPU?

I have a quad-core 64bit CPU and have Windows 7 32bits installed (don't ask why.) Will a 32bit OS run slower if installed on a 64bit CPU as compared to a 32bit CPU ?
10
votes
7answers
5k views

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

How you can check if your computer Has an x86 (32-bit) or x86-64 (64-bit) processor? Is running a 32 bit or 64 bit operating system?
10
votes
3answers
4k views

What is meant by a 32 bit processor?

What is meant by a 32 bit processor, or generally an n-bit processor?
6
votes
9answers
24k views

How can I determine whether my processor is 32-bit or 64-bit?

How can I determine whether my processor is 32-bit or 64-bit? My processor is AMD Phenom 8450 triple-core.
1
vote
3answers
3k views

Having trouble installing Windows 7 64-bit on my i3-350M laptop

Based on my brief research, the version of Windows 7 you can install (with respect to 32 or 64 bit) is based on what processor you have. I just bought a Dell Vostro, with a i3-350M Processor, and as ...
2
votes
2answers
3k views

How to check (on Windows) if CPU is 64-bit compatible?

I'm converting old Windows desktop machines from 2005-2009 into cheap Ubuntu Linux servers. I want to know which ones can handle a 64-bit OS and which can't. I read that some x86 CPUs are 64-bit ...
13
votes
1answer
9k views

ubuntu: amd64 vs i386?

cant understand what these are even though i've read articles about them. does it has something to do with 32 bits and 64 bits CPU? so why is it saying "AMD"64 and "I386"? AMD is a label just like ...
1
vote
3answers
1k views

x86 vs x64 windows7 on an i7 processor [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems I have a laptop with a new i7 Q720 processor that currently runs Windows-7 32 bit. With the exception of limiting my RAM to 4gb, are there any ...
3
votes
7answers
626 views

Why cant we use 64 bit OS on a 32 bit CPU?

Why can't a 64-bit OS run on a 32-bit CPU, but a 32-bit OS works on a 64 bit CPU?
2
votes
2answers
2k views

Why does explorer.exe use so much CPU?

The explorer.exe process on my Vista x64 has started using a lot of CPU recently. Restarting the process typically solves the problem. Is there a simple way to inspect the process to see where ...
2
votes
2answers
1k views

installed windows 7 64-bit on a intel core duo machine

If I installed Windows 7 64-bit on an Intel core duo machine, will this cause any problems? It's a 3 year-old computer, so I'm not sure if it will work.
0
votes
1answer
977 views

How to tell if my Intel 64-bit CPU supports AMD64/x64 long mode?

I have Windows XP 64-bit, and am having a some weird issues with a 64-bit build of VirtualDub. In the release notes on SourceForge, it it says that the 64-bit version was compiled specifically for ...
0
votes
2answers
4k views

Does a motherboard have to support 64-bit or is it just the CPU?

Do I need to have both components to support 64-bit, motherboard and CPU. Or is it just the CPU that matters?