Dynamic Overclocking overclocking is a feature which will increase your CPU/GPU-Speed if needed and when needed. It brings you extra performance while system is heavy-loaded. Diagnosing system's utilization to active the performance enhancement, make the ultimate personalized system possible.

You can achieve extra performance while you're playing 3D games and vector rendering. You don't have to raise the frequency and voltage for all-time because it will burden your PC system. Some people may concern their system always under intensive status. You can acquire additional performance within the tolerance when you need it.

There is also another advantage to 'noob' users who want to overclock they system but either don't know the exact procedure of the art of overclocking or too afraid to do so, specially when companies doesn't support warranty over overclocking damages. All they have to do some clicking to achieve some overclocking boosts to their system. 

Two major motherboard manufactures introduce this feature named D.O.T. and C.I.A.
Let us do an in-depth analysis of the feature and compare them.

What is D.O.T. ?   

MSI D.O.T. (Dynamic Overclocking Technology) that automatically overclocks CPU by increasing FSB clock when necessary. 

Have a look at the original description of D.O.T. taken from MSI's website.

What is the Dynamic Overclocking Technology? Many mobo users must feel curious about this question. Dynamic Overclocking Technology, in simple words, is the automatic overclocking function, included in the MSI's newly developed CoreCell Technology. It is designed to detect the load balance of CPU while running programs, and to adjust the best CPU frequency automatically. When the motherboard detects CPU is running programs, it will speed up CPU automatically to make the program run smoothly and faster. When the CPU is temporarily suspending or staying in the low load balance, it will restore the default settings instead. Apparently, the Dynamic Overclocking Technology will be powered only when users' PCs need to run huge amount of data like 3D games or the video process, and the CPU frequency needs to be boosted up to enhance the overall performance. On the contrary, when your PC stays in the normal status such as surfing on the Internet or doing hard drive defragment, CPU will remain the original speed without overclocking.

What is C.I.A. ?   

MSI wasn't alone in its initiative, as Gigabyte's C.I.A. (CPU Intilligence Accelerator) is called to solve same problems. The description provided in company's press release resembles that of MSI D.O.T. much:

...C.I.A. (CPU Intelligent Accelerator) is designed to detect CPU loading during software program's executing, and automatically adjust CPU computing power to maximize system performance. During loading high CPU resources consumption tasks, such as video and audio encoding programs or thrilling 3D games, the CPU requires more CPU computing power; when C.I.A. is enabled, it will detect the current CPU loading and automatically accelerate the CPU computing performance, thus allow programs to execute faster and smoother. On the other hand, when the programs are terminated, the CPU will return back to its initial status...

Gigabyte avoids specifying the parameter that C.I.A. controls. Instead of and unambiguos "...adjust the best CPU frequency..." of MSI, they use an indistinct "accelerate the CPU computing performance". However we don't know other means of doing this except for overclocking and therefore think it's pure casuistry.

But the aim that is to detect the load balance of CPU while running programs, and to adjust the best CPU frequency automatically sets the obvious question: how is it possible to determine CPU load only with a mainboard without any additional software running. This is not trivial. 

The most correct way is to analyze the instructions transferred via CPU bus. But such a solution will cost a fortune and will require an extra processor, at least equal to the primary CPU. Therefore, MSI must be using some other method. But what? We thought of an idea, but it was so primitive that we decided to check it just to make sure we were wrong...