Microsoft just downgraded the capacity of OneDrive in bad faith yesterday, and today the surface book's pitfall materials were exposed

The Surface Book is Microsoft's new flagship notebook this year. The tablet keyboard separation design is adopted, and the price of the beggar version is up to 1499 dollars (about 9500 yuan). The GT940M independent graphics card version starts from 1899 dollars (about 12000 yuan). Although the graphics performance is better than the 13 inch MacBook Pro, the price is really noble.

Although there is no price announcement in China for the time being, the negative news of the Surface Book continues after foreign users get the mass production machine. Many users report that there are many bugs in the new machine, but the cupware is still behind

Recently, the foreign website ifixit discovered after disassembling the machine that the Surface Book uses the PM951 solid state drive provided by Samsung. The latter is based on Samsung's 19nm process. Although it supports the PCIe 3.0 x4 specification, it uses TLC flash memory particles with low cost and service life. Using such SSDs on such an expensive machine makes people feel a bit vulnerable.

The measured data of foreign netizens is 128G on the left and 256G on the right

And sadly, The performance of the SSD PM951 is also awkward, especially for the 128G and 256G versions. The sequential write speed cannot exceed 280MB/s. The performance is just the same as that of four years ago

The following are the performance parameters of Samsung official logo:

• 128GB: sequential read and write are 600MB/s and 150MB/s respectively; Random read and write are 140K IOPS and 37K IOPS respectively;

• 256GB: 1000MB/s for sequential reads and 280MB/s for writes, 250K IOPS for random reads and 74K IOPS for writes;

• 512GB: 1050MB/s for sequential reads and 560MB/s for writes, 250K IOPS for random reads and 144K IOPS for writes