RTX40 series graphics cards have been fully distributed, which is good news for gamers. In addition to improving game performance, the RTX40 series graphics cards also greatly reduce power consumption. The RTX4070 graphics card platform can meet the demand with a 600W power supply.
Purpose and product selection of power supply evaluation:
When choosing products, many players will struggle. A power supply of 1 yuan/W is still too expensive. So, a power supply of 0.5 yuan/W, that is, is it reliable to buy a 600W power supply for 300 yuan? In order to have a more comprehensive and in-depth understanding of the power supply market for mainstream platforms, and to effectively provide players with purchasing guidance, we selected 600W power supplies between 200-300 yuan for this year’s power supply review, and finally selected 12 products. The list is as follows (arranged in alphabetical order by the Chinese name of the brand).
The 600W power supply is positioned as a mainstream platform. With a combination of Core i5+RTX4070 graphics card, although the power supply is not expensive, the price of the hardware can reach as much as 7,000 yuan. The stability of the power supply when it comes to hardware safety is also worthy of attention.
In order to ensure the fairness and impartiality of Hengping, all 12 power supplies in Hengping this time were purchased from e-commerce, and products sent for testing are not accepted to ensure that the test results of each product have the same performance as the products purchased by consumers.
For this power supply Hengping evaluation, we contacted the Guangdong Zhongyuan R&D Laboratory, and a third-party laboratory conducted data collection. The testing instrument used by Hengping Evaluation was chroma8000. The testing environment temperature was 28-29°C and the ambient humidity was 30-40% RH.
This power supply evaluation will use Intel's power supply specifications as the basis for inspection and as a standard for whether the power supply is qualified. In addition, the conversion efficiency of the power supply will be measured and compared with the 80PLUS certification requirements to consider whether the performance of the power supply is false.
Conversion efficiency test: 1 virtual standard
The first thing to test is the conversion efficiency that everyone is familiar with. The conversion efficiency of a power supply is the ratio of the power supply's output power and the input power, that is, the power supply's utilization rate of electrical energy.The higher the conversion efficiency value, the more energy-efficient the power supply is.
Among the 12 products evaluated in this power supply review, 5 products are marked with 80PLUS certification, and 1 product does not reach the nominal performance, which is Jinhetian G6 (nominal bronze medal, but the actual test did not reach the white brand).
In order to facilitate comparison of differences, we separately rank the power conversion efficiency under 50% load and 100% load. 50% load is a typical load, which is a 300W load, and 100% load is a full load, which is a 600W load.
Judging from the test results, Xingu GP600WATX3.0 Black Gold Edition has better conversion efficiency under different loads. If you value the energy-saving performance of the power supply, it is recommended to give priority to this power supply.
Before analyzing the following data, let's briefly introduce the purpose of the power supply output voltage. +12V powers the CPU and graphics card, while +5V and +3.3V power the memory and hard drive. These two sets of data are directly related to the stability of the hardware operation and are also the focus of our consideration.
Voltage deviation test: 1 model rollover
Voltage deviation refers to the deviation between the voltage output by the power supply and the ideal value.The smaller the voltage deviation, the more stable the power supply voltage is. In other words, the smaller the voltage deviation, the better. Intel's ATX power supply specification requires a voltage deviation within 5% to be qualified. This Hengping review also uses 5% as the qualified line.
Judging from the actual measurement data, only the Jinhetian G6 failed to pass the 12 power supplies evaluated this time. The voltage deviation of +12V reached 11.6%, and the voltage deviation of +5V reached 5.72%. Both exceeded the limits of the power supply specification and were judged to be unqualified.
Specific to the performance of each product, Xingu GP600WATX3.0 Black Gold Edition performed best, with outstanding performance in voltage deviation of each channel.
Cross load test: 2 models failed
Once you understand the voltage deviation, the following cross-loading becomes easier to understand. This test simulates voltage deviations in different scenarios, such asPower in standby environment, idle to download, games fully loaded, andWhether it can provide stable voltage for hardware in different scenarios such as 3D rendering, it can be said that voltage deviation focuses more on theoretical testing, while cross-loading is more in line with actual usage scenarios. Therefore, the smaller the cross-load deviation amplitude is, the better.
The cross-load voltage deviation is set according to the parameter nameplate of the power supply, and then the load settings in 7 different usage environments are simulated, including standby environment, power-on moment, large-scale games, 3D rendering, etc., switching different usage environments, recording the output voltage of each channel, and comparing it with the ideal voltage value. The largest deviation range is the cross-load voltage deviation we measured.
Judging from the test results, two products failed the cross-load voltage deviation test. Among them, the GAMEMAXVP-600's +5V voltage deviation reached 6.08%, exceeding the limit, while Jinhetian's G6 shut down the output at +12V heavy load, could not complete the cross-load test, and withdrew from the subsequent tests. These two products were judged to be unqualified.
Taken together, the output voltage of Xingu GP600WATX3.0, Huntkey JUMPER600 and Chief Player DKPREMIUM is more stable. If you value the stability of the power supply voltage, it is recommended to choose these three products.
Output ripple test: 2 models failed
Output ripple refers to the noise in the power supply output current, which can be considered as the purity of the current.The smaller the value of the output ripple, the purer the output current and the smaller the impact on the hardware.Intel's ATX power supply specification is that the ripple of +12V is less than 120mV, and the ripple of +5V and +3.3V is less than 50mV. This power supply evaluation uses the same qualified line.
From the test results of our power supply, the +3.3V output ripple of the Xianma Power Pioneer 600M reached 74.4mV, which exceeded the limit and was judged to be unqualified.
Summary analysis of power supply review
Based on the various test results of this power supply Hengping, Xingu GP600WATX3.0 has better performance in all tests, especially in terms of performance, which is significantly ahead. Of course, this is also the only product in this Hengping that costs more than 300 yuan. It is recommended for players with a larger budget to choose it, which will save more worry in different aspects. If you do not pay attention to the energy saving brought by performance, then the stable output of Huntkey JUMPER600 and Chief Player DKPREMIUM are more suitable for gamers to choose.
A total of 3 of the 12 power supplies randomly inspected by Hengping this time were judged to be unqualified, namely GAMEMAX's VP-600, Xianma's Power Pioneer 600M and Jinhetian's G6. It is recommended that you avoid them when making choices. The results of this Hengping review are only valid for the purchased batch of products. It is recommended that everyone continue to pay attention to the dynamics of brands and products.
If you don’t have high requirements for power supply, just choose qualified products. In addition, among the power supplies in Hengping this time, Xingu and TT power supplies provide a 5-year warranty, and other power supplies have a 3-year warranty. You can also pay attention to this when choosing products.
Finally, we also remind everyone that the performance of the power supply is related to the stability and safety of the entire machine. When building a platform, do not overly compress the budget for the power supply. 0.4 yuan/W should be the minimum for choosing a power supply. In addition, when purchasing products, you must choose formal channels and official stores, and do not be greedy for cheap to avoid big losses.