The everyday computing is primarily done using a desktop or a laptop. When we are buying a laptop or a desktop, we are very much concerned about the configuration particularly the processor/CPU, RAM and the GPU/graphic card. Consider the processor for instance, we have Intel Core-i7 processor for both desktop and laptop. This is the case for even Intel Core-i3 and Core-i5 processor. The laptop and desktop processor are available even with same clock speed. Say for example 2.4GHz Intel Core-i7 processor is available for both desktop and laptop. But are they same in performance? The answer is NO.
|Desktop vs Laptop|
Performance – Desktop vs Laptop
The laptops are portable devices and therefore they are designed in such a way to consume less power to extend the battery life. But there is no such power restriction for desktop systems. So the hardware in the desktop system which include processor, GPU/graphic card, RAM can be supplied with maximum power to get maximum performance out it. But a proper SMPS/PSU(Power Supply Unit) should be used which should be able to power up all the hardware efficiently. So for a given same configuration for desktop and laptop, the desktop would perform well in terms of speed and performance than a laptop. This is the case for GPUs too. The laptop processors will have the suffix ‘M’ in their model name which means mobile processor.
Multi-core Processor – Desktop vs Laptop
The desktop hardware such as processors and graphic cards are available in many number of model. If we consider desktop CPUs, there are dual-core, triple-core, quad-core, hexa-core and octa-core processor. But the laptop configurations are restricted to quad-core processor because of its limited power specification. Also the desktop processors can be clocked at higher speed than the laptop processors.
Even if you consider same GPU for desktop and laptop, the desktop version of the hardware will give more performance than the laptop version of the hardware. In order to extend the battery life of the laptop efficiently, usually the GPUs will be made to go standby during normal use and this is what the Nvidia Optimus Technology.
Laptop when charging will give better performance?
Yes. There will be a little performance improvement. You can notice this improvement while playing games or when running powerful application which requires more processing power. You may sometimes get low FPS(Frames per second) in high-end games in laptops when it is not charging. You can use tools like Fraps to check the FPS of games which is a measure of performance of games.