“Industry experts often say that the current 650W power supply is the “golden oil” today. With the development of hardware technology, the energy consumption ratio of computer hardware has been steadily increasing. In other words, under the same performance, the new technology makes the hardware Power consumption becomes lower. But this does not mean that the power consumption of the computer is also decreasing, because this sentence can also be understood as, in the case of the same power consumption, the new process makes the performance of the hardware higher. For hardware manufacturers, it is obvious that the second understanding is more conducive to the subsequent development of products. After all, for most consumers, the temptation brought by high performance is more significant than low power consumption.therefore

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Industry experts often say that the current 650W power supply is the “golden oil” today. With the development of hardware technology, the energy consumption ratio of computer hardware has been steadily increasing. In other words, under the same performance, the new technology makes the hardware Power consumption becomes lower. But this does not mean that the power consumption of the computer is also decreasing, because this sentence can also be understood as, in the case of the same power consumption, the new process makes the performance of the hardware higher. For hardware manufacturers, it is obvious that the second understanding is more conducive to the subsequent development of products. After all, for most consumers, the temptation brought by high performance is more significant than low power consumption. Therefore, it is also the mainstream configuration. Now the power consumption of computer hardware has not become lower, but may even be higher, but the performance improvement is greater.

A power supply with a rated power of 500W is no longer a “one-size-fits-all” choice today

It is precisely because of this that the mainstream power of PC power supply is actually gradually increasing with the times. Once upon a time, a power supply of about 300W can meet the needs of most platforms, but as more and more graphics cards require external power supply, 500W in recent years. The power supply on the left and right has become the “one-size-fits-all” choice, which can meet the power supply needs of mainstream platforms at a reasonable price, and has the ability to support high-end platforms. Since these two years, the 500W power supply can only be regarded as an entry-level product. Although the mainstream platform is not a big problem, it is really difficult to support the use demand of high-end platforms. Obviously, it can no longer be used as a “one-size-fits-all” power supply. It is a power supply product with a rated power of not less than 600W or even 650W.

We are not making this point without foundation. First of all, about the increasing power consumption of mainstream platforms, various evaluation data have been hammered. Even Intel itself has indeed released the corresponding power supply design specification requirements, indicating that its own In fact, the power supply requirements of processor products have been greatly improved. According to the relevant information released by Intel, the same TDP 95W product, the +12V CPU power supply corresponding to the 6th/7th generation Core processor only needs a continuous 16A and peak 18A power supply, but the 8th/9th generation Core processor will be corresponding The requirements have been raised to a continuous 22A and a peak value of 29A. Even the 8th/9th generation processors with TDP 65W have higher power supply requirements than the 6th/7th generation Core processors with TDP 95W.

When it comes to the 10th generation Core processor, the demand for +12V CPU power supply is higher, because the 10th generation Core processor no longer has the TDP 95W grade, but directly replaces it with TDP 125W, and the demand is continuous. 26A, peak current of 34A; and the 10th generation Core processor with TDP 65W also has higher power supply requirements than the 8th/9th generation, which requires continuous 23A and peak value of 30A, which is already higher than the latter’s TDP 95W product. Slightly higher. Therefore, we might as well convert it to the power supply requirements of the 10th generation Core processor, which means that its TDP 65W processor requires at least a continuous 12V*95%*23A≈263W and a peak value of 12V*95%* on the +12V power supply. 30A=342W power (multiplied by 95% because the voltage allows ±5% deviation, and the calculation is calculated according to -5%), TDP 125W processor needs power supply +12V power supply, at least continuous 12V*95%* 26A≈297W, peak power of 12V*95%*34A≈388W.

Of course, the power supply +12V power supply is not only for the CPU, but the graphics card is also a very important +12V power supply object, and the requirements are not inferior to the CPU. Here we briefly list the actual power consumption of several graphics cards (subject to the FE version or the public version). The FE version of the mainstream RTX 2060/2070/2080/2080 Ti (that is, the public version) has a full load power consumption of 160W. /190W/230W/260W, the full-load power consumption of the RX 5700/5700 XT graphics card is about 170W/220W, in other words, for mainstream platforms, you need to set aside a power margin of not less than 200W for the graphics card to use. For high-end and flagship platforms, you need to set aside no less than 300W of power consumption for the graphics card.

Therefore, according to this calculation, for the 10th generation processor, you should at least prepare a power supply with +12V output power not less than 263W+200W=463W, recommended 388W+300W=688W, plus other peripheral hardware at + The consumption of 12V, +5V, +3.3V power supply, 500W starting, 700W regular should be regarded as the standard match of the tenth generation Core processor platform. This also confirms what we said before, the 500W power supply can no longer meet the positioning of “high and low pass kill”, and at least a product with a rated power of 600W can be regarded as the current “magic oil” power supply.

In addition, we have also proposed a PL estimation method to select a power supply before. Taking a platform with a Core i9-9900K processor and a GeForce RTX 2080 Ti graphics card as an example, according to the PL estimation method, the full load power consumption of this platform should be numerically the same as 210W+ 325W=535W is similar, so a power supply with a rated power of not less than 600W is also required. Of course, we prefer to choose according to the minimum 535W/0.8=668.75W≈700W, and the recommended 535W/0.5=1070W≈1100W, which can better avoid restarts, crashes, black screens, blue screens, etc. caused by excessive instantaneous power. Weird question.

To sum up, the power supply with a rated power of 600W to 650W is currently regarded as a “high-low pass-kill” product. It can not only easily meet the needs of mainstream platforms, but also has the potential to upgrade to high-end platforms or even flagship platforms. The emphasis is on “budget sensitivity” or “performance priority”, and there are plenty of corresponding products on the market to choose from. Now the three words “magic oil” can be regarded as worthy of their name when placed on such a power supply product.

There are not a few motherboards that use 4pin+8pin for CPU power supply. Therefore, when purchasing a power supply, it is necessary to pay attention to whether the number of CPU power supply interfaces matches.

So what kind of 600W/650W power supply products are worthy of players to choose? In fact, the choice of power supply depends on four aspects: performance, expansion capability, price and warranty. Among them, the performance can use our super power index or the upcoming The online power ladder list is used as a standard; the expansion capability is measured according to your own needs, but according to the current motherboard power supply interface configuration, the CPU power supply interface can provide two 4+4 pin power supply products should be given priority; as for The price and warranty time are public information, which can be easily checked by everyone.

Of course, you can also directly refer to our “2018 Juxian (4): 11 650W Full-Module 80Plus Gold + Power Supply Hengping” for selection. Although the time since the article was published is now more than one year, the power supply products The development cycle is usually 5 years, so the products mentioned in this article are basically still on sale. For players who pay attention to “performance first”, products with a super performance index above 85 in the Hengping evaluation are worth considering, such as Antec HCG 650 Gold, Haiyun Focus+ 650 Gold, Zhenhua Leadex Gold 650, EVGA Supernova 650 G+ , Corsair RMx 650, etc., are all products with very good performance.

Xianma Gold Medal 650W Power Supply

For “budget-sensitive” players, there are also very good cost-effective 600W/650W power supplies on the market, such as Xianma gold 650W power supply, 80Plus gold certification, full-Module wire design, super power index can reach 80 points , the performance is in the middle of the 650W power supply, and the price is only 479 yuan. If it is the fan price or promotional price on JD.com, it can even start at 449 yuan/439 yuan. And recently, they have also upgraded the wires of the power supply. The 4+4pin power supply interface of the CPU has been upgraded from 1 to 2, so that the power supply can meet the needs of more platforms and further improve its scope of application. The cost performance can be said to be quite high.