What is TDP technology in the CPU

On the computer represents the power consumption of each component, especially the computer's CPU (central processing Unit) GPU (graphics processor) is an important indicator of computer consumption. is the highest power value that CPU companies refer to the heatsink design for a series of processors. TDP technology is to reduce CPU power consumption of energy-saving technology.

CPU Power consumption

The CPU's TDP power consumption is not the real power of the CPU. Power consumption (power) is an important physical parameter of the CPU, according to the basic principle of the circuit, power (P) = current (A) x voltage (V). As a result, the CPU's power (Power) equals the product of the current value flowing through the processor core and the core voltage value on the processor. TDP refers to the thermal effects of the CPU's current and other forms of heat, all of which are released in hot form. Obviously the CPU's TDP is less than CPU power. In other words, CPU power is largely a requirement for the motherboard, require the motherboard to be able to provide the corresponding voltage and current; While TDP is a requirement for the heat dissipation system, the heat dissipation system is required to disperse the heat emitted by the CPU, which means that the TDP power is the maximum total heat that the CPU must be able to disperse.

Now CPU manufacturers pay more and more attention to CPU power consumption, so people hope that TDP power consumption smaller the better, the smaller the CPU heat is small, the more easy to dissipate, for notebooks, the longer the use of batteries. TDP value can not fully reflect the actual heat of the CPU, because the current CPU has energy-saving technology, the actual heat is obviously also affected by energy-saving technology, the more efficient energy-saving technology, the actual heat is smaller.

TDP power consumption

TDP power consumption can largely reflect the heat of the CPU, in fact, a major constraint on the development of the CPU is the problem of heat dissipation. Temperature can be said to be the killer of the CPU, obviously low calorific value of the CPU design is expected to achieve higher operating frequency, and in the whole computer system design, battery time and even environmental protection are very helpful. The current desktop CPU,TDP power consumption of more than 100W basic is not desirable, the ideal value is less than 50W, but the market of TDP less than 50W CPU, the performance is relatively low.

For consumers, of course, the CPU's dual power consumption is the lower the better. Unfortunately, the CPU power is reduced, the graphics card is getting higher, and the total platform power consumption has not been significantly reduced. The CPU's thermal design power (Tdp:thermal) value is primarily provided to computer system vendors, heatsink/fan vendors, chassis vendors, and so on. Because the value of TDP indicates that the final version of the corresponding series of CPUs is likely to achieve the highest heat dissipation at full load (the theory of 100% CPU utilization). However, the TDP value is not equivalent to the actual CPU power consumption, there is no arithmetic relationship, in the case of equal performance, the general TDP smaller the better.

Information

The actual power consumption of the CPU has no shortcut to obtain and can only be tested. Actual power consumption is meaningful to end users. For a series of CPUs, Intel generally gives an overall TDP value and does not provide different TDP values for different models of each series, so you can see that a large number of different models of CPUs are common to a TDP value.

Application

General TDP is mainly used for CPU,CPU TDP value The final version of the series CPU at full load (the theory of CPU Utilization is 100%) may reach the highest heat dissipation, the radiator must ensure that the processor TDP maximum, the processor temperature is still within the design range.