TGP, TBP and TDP for video cards: Testing and finding out what the difference is

Therefore, before buying a video card, users try to study the level of its power consumption. Let’s consider the main differences between TGP, TBP and TDP devices within the framework of today’s article.

TGP

One of the most popular brands is TGP, which is literally called “Total Graphics Power”. This refers to the power consumption of the GPU and its entire printed circuit board. But the cooling and lighting system is not taken into account. That is, it characterizes the power that is needed for the GPU, but the cooling and lighting elements are not included in the overall rating of the card.

TGP is a concretizing metric that counts the components on the board. This setting is important in the various manufacturing processes that individual add-on partners have. Most manufacturers use reference printed circuit boards. But besides that, they also develop custom cooling and lighting systems that accompany boards to the market. Since these systems are different for each manufacturer, there is no single indicator for estimating power consumption for used video cards. Accordingly, TGP makes this value more specific.

TGP is able to determine the maximum power rating of the card that the system power supply should give to the accelerator. This is quite important for users since the choice of a video card mainly depends on the available power supply.

TBP

This acronym sounds more like “Total Board Power” and is not much different from the previous format. TBP is mainly used for AMD’s Radeon lineup. It differs in one important aspect that directly affects the maximum consumption of the video card – the accuracy of the numerical value.

This is because the TBP figure includes the heat generated by the card’s cooling and lighting system, coolers, and LEDs. The combination of these factors more accurately quantifies the card’s power consumption, as they give an indication of the peak consumption that the device reaches under heavy loads. TBP takes into account the power consumption of voltage controllers, VRM elements, coils, capacitors and LEDs of the video card.

TDP

The TDP of accelerators is different from the rating of processors. In the latter, the full name sounds like “Thermal Design Power”, in video cards – “Thermal Design”. TDP is considered to be the most accurate metric of actual GPU power at a real point in time, so manual measurement of this value is not required here.

The TDP of a video card is determined by the manufacturer and refers to the thermal output generated by the GPU. They are measured in watts. Note that this is a fairly formal measurement method, since, according to the result, the power indicator is characterized not by electrical, but by thermal watts. In fact, this is the same thing, but the difference between the power consumed by the GPU and the level of heat generated by it is still present. In fact, this difference is identified by the additional work of the GPU.

In other words, TDP is understood as the maximum amount of heat that is generated by the graphics card. Under normal conditions, the cooling system dissipates it, which does not affect the overall power consumption of the device.

This standard is very common among manufacturers and representatives of digital technologies. But in the GPU realm, it’s better to use more accurate scoring systems.

Which to choose

There is no universal assessment format that would be applicable to all scenarios for determining energy consumption. In practice, all three ratings are used. It all depends on the specific current measurement tasks, that is, what exactly needs to be known.

In cases where the theoretical power requirements of different GPUs are compared, TDP is considered to be a more reliable and consistent evaluation metric. If it is necessary to determine the power consumption of a particular device, then TGP is the best option here. The figures in this format will be much closer to the actual value of electricity consumption that exists in real life. This is especially necessary when the printed circuit board is used separately under a custom water block and you need to get an idea of ​​​​its consumption without a factory cooling system. To determine the peak consumption of a particular video card, the most optimal rating is TBP. It represents the totality of all components of the accelerator and determines the highest rating of all available rating systems that can be seen realistically under normal conditions.

A few words in conclusion

Thus, when determining the level of power consumption of a video card, it is possible, to sum up, the differences between the three ratings described above. This will provide the most complete quantitative representation of the device. Therefore, it will help with the choice of an accelerator and, if necessary, an appropriate power supply.

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