Best is a subjective question that requires personal opinion to answer. There are a few empirical answers to it however it all depends on the processor being cooled. An Ivy Bridge processor has an extremely small die area, and those will not be as effectively cooled as one of the large "sandy Bridge" era CPUs. AMD processors likewise use a larger lithogrpahy that is more effectively cooled with large heatpipe coolers.
For cost efficiency and low idle temperatures a heatpipe Direct touch cooler with aluminum fins will generally be the most cost effective. Originally designed as a "Xigmatek HDT" tower, it has been rebadged as an OCZ vendetta, Coolermaster Hyper 212 and a number of other heatsinks over the last decade.
For larger high TDP processors the answer is still basically the same, except a much larger size (3 to 4 times the fin surface area) and more heatpipes, combine with additional fans. As the Thermaltake Frio, Noctua DH-14 and the Phanteks PH-TC14PE are among some of the highest rated large sized tower coolers.
Lastly on the serious end of "air cooling" is what is termed "water cooling."
Water cooling is a misleading term as modern heatpipe coolers also use water to move heat from teh CPU surface to shed it at large metal fins.
Modern water cooling, uses standard water to transfer heat from a CPU block to a large radiator that can be setup somewhere else, either in the case or externally. The primary benefit to this is large amounts of heat can be moved efficiently. This does not lead to significantly lower temperatures over a high end "tower cooler" but can reduce overall case temperatures, and more importantly can equal the performance of the best tower coolers at far lower noise levels.
Different pastes keep your processor cooler then others. In a way, yes it does effect the processor because the better paste you have the cooler your system will run which then will allow your computer to run at maximum speed.
sink
Thermal Compound
fan and heatsink
Times change and this years best processor can get old in few years time. At this moment, the best processor is the Intel i7.
The power supply should be disconnected first. Then comes the CPU cooler. Then the processor can be safely removed from the socket.
A desktop processor is a processor that has been optimized for maximum performance on the desktop, for tasks such as playing video games or editing video. This is as opposed to a laptop / mobile processor, which is optimized to provide longer battery life and run cooler.
Zach is cooler and the best eva!!
The best processor by Intel now is Core i7 975 Extreme Edition.
The best processor one would choose for gaming depends on the type of game. Different games have different processor speed requirements, but the faster and more advanced the processor the better.
To keep your processor cool, use a thermal paste. If you're installing a cooler, you'll need to use Gelid Solutions GC-Extreme Thermal Compound on the contact surface of your CPU, GPU or chipset. The applicator makes it easy to apply this product to your cooler.
the best processor for a desktop is the Intel i7 Extreme which has a speed of 3.2GHz and 8MB of cache