Hard disk 1 yuan can buy a few GB? Count it!

Recently, the price of SSDs has dropped a lot, and there have been a lot more messages from small partners about hard disks. In fact, Xiao Bian buy hard drives have always been calculated unit price, such as a dollar can buy how much capacity, this way is very easy to find the most cost-effective hard drive capacity, and then buy a hard drive. Today, by pushing updates, we will calculate the price of the nearest hard drive. What hard drive is the most cost-effective is clear at a glance.

The first thing a partner must do to buy a hard disk is definitely capacity. It is not worthwhile to know whether to buy this capacity. It is better to use capacity instead of price, and what you get is how much money a dollar can buy, which is the “capacity price ratio”.

First look at the desktop 3.5-inch mechanical hard drive, the most common 7200 rpm hard drive results are as follows:

500GB, about 259 yuan: capacity price ratio 1.93GB/yuan

1TB, about 269 yuan: capacity price ratio 3.72GB/yuan

2TB, 360 yuan or so: capacity price ratio 5.56GB/yuan

3TB, about 489 yuan: capacity price ratio 6.13GB/yuan

4TB, about 899 yuan: capacity price ratio 4.45GB/yuan

6TB, about 1499 yuan: capacity price ratio 4.00GB/yuan

See it, Xiao Bian often said that now 2TB ~ 3TB mechanical hard drive is the most cost-effective, because it is the largest capacity and price ratio, every dollar can buy the most capacity.

The 2.5-inch 5400 rpm hard drive that is more concerned with using a laptop's companion is like this:

500GB, about 259 yuan: capacity price ratio 1.93GB/yuan

1TB, about 309 yuan: capacity price ratio 3.24GB/yuan

2TB, about 639 yuan: capacity price ratio 3.13GB/yuan

3TB, about 959 yuan: capacity price ratio 3.12GB/yuan

4TB, about 1299 yuan: capacity price ratio 3.07GB/yuan

So the current notebook hard drive is still the most suitable 1TB model, 2TB and 3TB are also pretty good. However, it should be noted here that some large-capacity notebook hard drives use a 15mm thickness disk, and the notebook is not installed (generally the slot is 7mm, 9mm or 12mm).

If you want to buy an SSD, you need to consider different interfaces. The capacity and price ratio of the mainstream SSD of the SATA interface is approximately the following:

120GB, about 265 yuan: capacity price ratio 0.45GB/yuan

240GB, 429 yuan or so: capacity price ratio 0.56GB/yuan

480GB, about 899 yuan: capacity price ratio 0.53GB/yuan

Obviously, the highest price-to-price ratio is 240GB/480GB, and the 120GB model has a much lower price/price ratio. If it is not particularly tight, it is not recommended to buy a small-capacity SSD. Now the price of SSDs for mSATA and SATA standard M.2 interfaces is similar to that of SATA interface products. There is no specific comparison here.

As for the high-speed SSD with NVMe M.2 interface, we take the original Samsung 960EVO as an example:

250GB, about 659 yuan: capacity price ratio 0.38GB/yuan

500GB, about 1395 yuan: capacity price ratio 0.35GB/yuan

1TB, about 2949 yuan: capacity price ratio 0.34GB/yuan

It seems that in the new high-end SSDs, models that are still around 250GB have the best capacity-to-price ratio, and higher-capacity models are also a little expensive.

Looking at the current situation, the cost per GB of mechanical hard disks is still stable, but it is relatively stable, not as obvious as the price drop of SSDs. It should be noted that since 2018, the price drop of large-capacity SSDs has mostly been between 10% and 20%. In the meantime, the price of NVMe standard M.2 interface products has even dropped by 30% or more (I hope the memory can also be reduced). If you choose a mechanical hard disk as your data warehouse, Xiaobian recommends a hard disk with a 3TB capacity. Naturally, the product with a solid state of about 240GB is more cost-effective.