I. Foreword: High-performance thin and light notebooks for the first time under 4,000 yuan glory Rui Long Edition MagicBook
Once upon a time, high performance was an unimaginable dream for the light and thin. The advent of the Intel i5-8250U and MX150 graphics cards changed the public's perception that light and thin performance would be weak, making it light and easy to play eSports and Online games. However, most of the light and thin models equipped with the Intel i5-8250U+MX150 are priced at more than 5,000 yuan and even higher. This time it is AMD's turn to change the world!
In October 2017, AMD released two new R-Mobile APUs, code-named 'Raven Ridge' - Ryzen 7 2700U and Ryzen 5 2500U. The GPU is equipped with next-generation Radeon Vega Graphics. With the optimized Zen architecture, the performance and energy consumption ratio is not inferior to i5-8250U.
Recently, the Magic Book with Ryzen 5 2500U has been launched. The price will be priced below 4,000 yuan. We will take out Lenovo's new trendy 7000-13 and compare it with it to see how AMD can surprise us. With shock!
The detailed parameters of the 2 notebooks are as follows:
The Ryzen 5 2500U and i5-8250U are 4-core and 8-thread, but unlike the desktop CPU, AMD does not make concessions on the frequency of the mobile processor. Regardless of the reference frequency, Turbo or full-core full-load frequency, 2500U are It is much higher than 8250U. Therefore, we reserve a little bit of expectation for the performance of 2500U, and see if there will be some surprises in the actual test.
Many notebooks equipped with the APU are equipped with a single 8GB DDR4 memory, and only 19.2GB/s of bandwidth is shared with the CPU, resulting in the inability of the built-in Vega card. The MagicBook uses dual-channel DDR4 2400. 8GB, bandwidth doubled to 38.4GB/s, compared to single-channel memory, GPU performance can be increased by about 40%.
The GCN architecture that was born in 2011 has undergone several improvements. The stream processor efficiency is comparable to that of Pascal (the efficiency here refers to the same frequency, the same performance as the number of SPs), but from Maxwell, NVIDIA has gained frequency. Black technology, Pascal this generation, the actual frequency of the base frequency of 1.5GHz GTX1070 can easily exceed 2GHz in the game, and AMD side to maintain relatively low power consumption, GPU operating frequency is generally around 1.3GHz ( AMD needs refueling ah).
2500U integrated Vega8 core display, with 512 stream processors, frequency 1100Mhz, compared to the MX150 in the tide 7000-13, the number of stream processors far exceeds the opponent, and the frequency is quite, predicting the actual game performance Vega8 will be far stronger than the MX150.
