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1answer
648 views

Performance and Battery Life

Okay, I'm looking for hard evidence to settle an argument. From a developers perspective, the argument of CPU usage and battery life comes into play often. If a CPU is throttled to use 10% of its ...
4
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1answer
3k views

Is it possible to down-clock a laptop CPU?

Is it possible to down-clock a laptop CPU, i.e. make it slower? Rationale: I’d like to save battery power and generate less heat. My laptop is an HP Compaq 6715b running Windows 7 Professional SP1, ...
2
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4answers
3k views

Multi-core CPU: can I say I have a 3x2.1GHz=6.3GHz CPU?

I have an AMD A6-3500 three-core CPU. AMD System Monitor shows each core with a maximum 2100 MHz. This also shows in AMD OverDrive. Does this processor run at the speed 3*2100 MHz? Edit Can I say ...
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4answers
859 views

What affects installation speed?

Super hardware noob here. My wife and I were installing a game on our laptops last night, from an installation file (not a disc). The game takes up about 7.6GB of HD space. My laptop installed the ...
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3answers
11k views

Why is my CPU speed lower than it should be?

I have an Intel Core 2 Duo E6400 that should run at 2.13 GHz but when I boot my computer, the BIOS shows a CPU speed of just 1.6 GHz (I removed the BIOS/motherboard logo screen so I can see the ...
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4answers
16k views

How to get an ARM CPU clock speed in Linux?

I have an ARM-based embedded machine based on S3C2416 board. According to the specifications I have available there should be a 533 MHz ARM9 (ARM926EJ-S according to /proc/cpuinfo), however the ...
3
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3answers
396 views

Is my laptop running slower than it could be?

I have a dual core CPU in my laptop. Supposedly it's supposed to be running at 2 Ghz. When a dual core CPU is said to be running at 2 Ghz, does it mean that each of the cores should be cranking at ...
2
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3answers
1k views

How is CPU clock rate maintained?

I was reading an article Clock rate from wikipedia which has to say that: The clock rate typically refers to the frequency that a CPU is running at. The clock rate of a CPU is normally ...
2
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2answers
905 views

How to change PC clock speed for individual programs?

We have some older programs (no source code anymore) that run too fast on CPUs with faster clock speeds. I'm guessing that they were written using software delays ('X' number of CPU instructions per ...
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0answers
69 views

AMD Opteron 248 H264

Would an AMD Opteron 248 CPU machine handle slightly faster than real time H264 encoding, using something like Sorenson Squeeze 8?
1
vote
1answer
695 views

Overclocked Intel Core 2 Duo E4300, what now?

I have overclocked Intel® Core™2 Duo Processor E4300 CPU. I changed FSB from 200 to 220. Multiplier is x9. The old core speed was 9 x 200 = 1800 GHz. Now it's 1980 GHz. I runed memtest to 20 passes ...
0
votes
1answer
200 views

“svhost(netsvc)” is using about 40-80% CPU when the system starts

My CPU usage is constantly at 40% (maximum 95%) most of the time when I start my PC. It continues to work at this rate for about 15-25 minutes. I checked the performance monitor and found out that ...
3
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2answers
358 views

How to run the CPU at something like 75%?

My notebook is too old for me to invest into a new fan (it will simply be replaced by a new one when the final heat death occurs), but when it runs on full speed I feel like sitting in front of a ...
0
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3answers
1k views

CPU giving 1/3 performance compared to same CPUs

I have a laptop Dell D820 with Intel Core Duo T2500 @ 2.00 GHz, more than four years old, still in good condition. When I benchmarked the CPU using the PerformanceTest 7.0 from ...
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0answers
2k views

Should I prefer processor speed (GHz) or core count? [closed]

I'm currently in the market for a new computer, so I'm curious about the recent trends of processor speed versus core count. Core count seems to be 'all the rage' these days, but things are really ...
2
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2answers
3k views

How to compare Intel and AMD Processors when different sites give such different rankings?

How can I get reliable information on the actual speed in practice of different processors? For example, I'm comparing 2 laptops with these processors: Intel Core i3-2310M AMD A6-3400M According ...
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5answers
1k views

Can keeping my CPU speed at “high performance/turbo” all the time decrease its lifespan?

Can keeping my CPU speed at “high performance/turbo” all the time decrease its lifespan? And if so, what would be its expected route of failure if it does happen?
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10answers
2k views

Why aren't all CPUs 'overclocked' as a factory default? [duplicate]

Possible Duplicate: Why are modern CPUs “underclocked”? When I was searching around for a desktop awhile back I came across a lot of discussions where techies talked about ...
1
vote
1answer
424 views

cpufreq policy acting weird, current policy max gets throttled

I'm using laptop-mode and the ondemand governor. When I do cpufreq-info I get analyzing CPU 0: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 0 1 CPUs which need to have ...
2
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2answers
305 views

Clock Speed and other factors

I hear almost everywhere that CPU clock speed is not the only factor that defines the true speed of a CPU. Well. What are the other factors then? In which case a processor clocked at 1.6 Ghz is faster ...
25
votes
7answers
2k views

Why are modern CPUs “underclocked”?

I keep reading since years about magical overclockability of modern CPUs. It is said that CPUs (with open multiplier) which are shipped to customers with (let's say) preset 3GHz, can be overclocked ...
31
votes
7answers
9k views

Has CPU speed already broken Moore's law?

I remember sometime around 1995 having a computer with CPU speed of 75 MHz. Then a couple of years later around 1997 having one that was 211 MHz. Then a few years later around 2000 having one that ...
2
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3answers
719 views

Multi-core processor speed

Might be a basic question: is the clock rate (1.7 GHz, etc.) that is mentioned for multi-core processors (e.g., Intel i5, i7) the clock rate per core, or it is the total speed of all cores combined?
2
votes
2answers
203 views

Usefulness of multi-core in the context of power-efficient computing

I'm considering options for a new portable PC. I'd like to keep power utilization at a minimum, while being able to run batch jobs as quickly as possible. Batch jobs I can generally parallelize ...
0
votes
2answers
423 views

Using Server CPU for Desktop Applications

Though it's a n00bish question I haven't found any clear answer anywhere even after long days of googling. Recently I am planning to use an AMD Opteron Quad Core 2350 for my home lab. I'll not run it ...
0
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4answers
172 views

processor speed with HDD

I have been doing some research to buy a laptop for software development. I have been told by one of my co-worker that having a processor over 2.2 GHz with 7200 RPM HDD makes no sesne. He said that ...