Although their real name may be different, they are best known as TDP-Up and TDP-Down, but it's OK to talk about cTDP-Up and CTDP-Down, because the concept requires it. But before we go into full detail to explain them, we have to understand the reasons why they were created.
TDP specification was inadequate: welcome during thermal configuration
Both AMD and Intel have tried to offer customized products to their customers, because they have experienced heat exhaustion issues emitted by operators of compact and portable applications.
As we know, each processor reaches the market with a certain amount of base and some TDP measured from the basic frequency today, and even though AMD and Intel introduce small changes, the concept remains the same.
So how can you provide the same product to all program partners and simultaneously satisfy? The solution is what is called Scheduled TDP or cTDP. This concept offers a number of TDP options configured by the machine manufacturer, which can change the base frequency and hence the CPU TDP within the values Intel and AMD specify on the specified processor page.
This is useful when, depending on the chassis or cooling design, the manufacturer is given the option to increase or decrease the mean of the base frequency and also the TDP, in order to provide a better operating range and temperatures.
CTDP-Up and cTDP-Down why use two different values?
To explain what manufacturers can do and to keep users informed of the performance they can expect on a computer with a processor of any kind, the cTDP-Up and CTDP-Down are introduced.
Therefore, it was necessary to rename, albeit internally, the telephone TDP
The nominal TDP replaces the traditional TDP and at the same time is called the processor depth (base) according to its TJmax. That is, it is a parameter that defines the maximum temperature produced by the chip during its time at the base and which can be dispersed without exceeding its maximum temperatures.
Instead, i cTDP-Up It is defined as the maximum heat transfer rate that the processor is capable of emitting when it is at its highest frequency against TDP. Usually this value is calculated by a false TDP multiplication of 1.5, which can give us actual or small CPU watts to fully utilize its power and commands.
And it is not a straightforward rule, since this usually comes from CPU architecture and especially in the technology used and algorithms for its robustness.
In a pure sense, cTDP-Low It is the opposite of CTDP-Up, which is a low-temperature emitter that the processor can generate its frequency of use and is always resistant to TDP. Here there is no rule or less to be followed, because with the passage of buildings and built-in facilities, the frequency of use is achieved, the greater connectivity of the useless cores and the lower and lower levels of less load.
These parameters are what allow any manufacturer to give us a better product, upgraded depending on available hardware or cooling and as a result we have a price according to the performance we can expect from him.
