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Power consumption analysis of 65W and 125W Core i7, how do they differ in practice?

First of all, it should be added that the TDP does not even correspond to the consumption or power consumption of the processor, but to the output of waste heat. However, silicon chips eventually convert almost all of their energy into waste heat, which is two closely related things.

Recently, Intel has been the main solution, in which case we know that the value of TDP relates to the operation of the processor at a certain basic rate, which, however, is of no significance in practice, as the processor will try to use one or all cores. Today, this is usually much higher than the basic measure, which logically increases the consumption and output of heat.

Server Anandtech has now focused on the consumption of Intel processors, namely the 65W Core i7-10700 and 125W Core i7-10700K. It is when choosing one of them that the customer could say that he would prefer a more economical version, but will he experience any savings in practice? –

According to the referenced test, they will not see them and we even learn that the maximum consumption of the 10700 model may even be a bit higher than in the case of the 10700K processor, but of course this may not be the rule, or it may not apply to all pieces.

After all, the graph, which shows the consumption of these processors depending on the number of loaded cores (including HT), shows that the course is very similar and both processors took turns in their lines. It would certainly be appropriate for a test sample to be larger than just one representative of these models, but no one does such public tests.

So is Intel deceiving us? In fact, it can be said that it is largely the work of motherboard manufacturers, who, for obvious reasons, try to squeeze the most out of processors. However, Intel will not be interested in making its processors run slower than they can, after all, the set values ​​for turbo consumption and timeout are only recommended, not required. This can be seen thanks to the capabilities of Asus boards, which allows you to set a profile that meets Intel’s recommendations, and it is clear here that the impact on consumption is significant:

In any case, the value of TDP really does not say anything, after all, the Core i5-10600K and the Core i9-10850K have the same, but in the top form it has twice the real consumption. And logically, it’s hard to expect a 10-core processor to consume almost the same power as a 6-core model.

However, Intel itself cannot be blamed for this fact, although of course it knows this fact very well, and for this reason it has previously advised reviewers in a princely way to test new processors on several motherboards at best.

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