Cheat Engine

[korby]

http://www.cpubenchjoe.net/overclocked_cpus.html


What is a Duel CPU and why can it overclock so much despite it's low GHz?

[Maxammus]

DUAL cpus are processors that have 2 cores. And looking at the not overclocked CPU benchMARK (here) it didn't overclock that much, a little under 8%. But idk why a dual core is that powerful, i'm not that knowledgeable on that sort of thing.

Edit: Change joe to mark in the url, i guess it's some sort of joke, it keeps changing mark to joe...

[korby]

That's happening with quite a few words recently.



Still looking for a knowledgeable answer D:

[Oblivious]

[korby]

I don't know why this keeps happening but its really annoying..

[Polynomial]

A dual core CPU is a processor that contains two processing units in one chip. The Intel Core 2 range also includes the Core 2 Quad, which has four processing units.

The idea behind them is that if you double the number of processors at a set frequency, you theoretically double the overall speed of the processor. This is true to an extent, but there are some overheads and problems that cause the real performance to be slightly lower than double.

There are some extra benefits of multi-core processors:

1) Increased application stability - Where an infinite loop in a process would normally lock up a single core system after a while (100% CPU usage, system becomes unresponsive) a multi-core system often does not have this problem. Windows manages your CPU so that one application thread may never use more than 100% of one core (so it can use 70% of one and 30% of the other, but never 100% of both). There are exceptions to this (multi-threaded applications for one). This means that even if an application locks up, the processor is free to terminate the application without the OS locking up.

2) Increased overclocking - In order to improve performance in the past, manufacturers looked for ways to decrease the voltage required and heat dissipated by single core processors in order to allow them to be pushed to higher and higher frequencies. This same technology is used in multi-core processors, but as you do not require a very high clock speed on multi core processors (4x2GHz could be roughly equivalent to a 6.5GHz single-core processor) you can overclock some of them to over double their factory set frequencies (provided you use ample cooling).

3) True multi-tasking and multi-threaded applications - On a single core processor, multi-tasking has to be emulated. The processor can only execute one instruction at once and must switch quickly between tasks in order to appear to be running multiple processes at once. On a multi-core processor, many instructions may be processed and once and the work-load can be balanced across the processors. Some high performance applications (such as newer games) run multiple threads within one application that are designed to allow the operating system to more efficiently manage the execution of code within the application.