Maybe you are confused about choosing SN770 or SN850 for your computer. Now, you can read this post from MiniTool to find the answer. This post provides a full and detailed introduction to SN770 vs SN850.

WD has launched various series of hard drives, namely Black, Blue, Green, and Purple. Different colors have different models. WD black drive is designed to enhance the PC experience, for example, it is perfect for high-performance applications like editing photos or videos and playing games.

WD Balck has many models such as SN 550, SN750, SN 770, SN850, SN850X, etc. In our previous posts, we introduced SN750 vs SN850, SN850 vs SN850X, and SN550 vs SN750. Today, let’s talk about SN770 vs SN850. If you want to choose one of them but don’t know which one is better, you can continue to read.

Here is a quick chart for SN770 vs SN850.

WD Black SN770WD Black SN850
Form FactorM.2 (2280)/x4 PCIe 4.0/NVMeM.2 (2280)/PCIe Gen 4.0 x 4/NVMe
NAND Flash TypeSanDisk’s TLC NANDSandisk’s TLC 3D
Storage Variants250GB, 500GB, 1TB, 2TB500GB, 1TB, 2TB
MTBF1.75 Million Hours1.75 Million Hours
TBW250GB: 200TBW
500GB: 300 TBW
1TB: 600 TBW
2TB: 1200 TBW
500GB: 300 TBW
1TB: 600 TBW
2TB: 1200 TBW
Warranty5 Years5 Years

SN770 vs SN850

SN770 vs SN850: Design

What are the differences between WD Black SN850 and the WD Black SN770? First, let’ see the design of them. SN850 can be purchased with a first-party cooler, which the SN770 doesn’t offer.

The heatsink-equipped version is about 10-15% more expensive than the bare version, but it’s a pretty good quality heatsink. Although both SN850 and SN770 run a bit hot during usage, if you’re on a budget and already considering the SN850, you can choose SN850.

SN770 vs SN850: Performance

When selecting an SSD, performance should be one of the most important factors to be considered since the fast read and write speed can improve computer performance and improve your user experience. Thus, this part is about SN770 vs SN850 for performance.

The sequential read speed of 500 GB SN770 is up to 5000 MB/s and the sequential write speed is up to 4,000 MB/s. The sequential read speed of 1 TB SN750 is 5150 MB/s, and the sequential write speed is 4900 MB/s.

The sequential read speed of 500 GB and 1TB SN850 are up to 7000 MB/s and the sequential write speed is up to 4100 MB/s, 5300 MB/s.

In short, in the aspect of performance, SN850 is a little bit better than SN770. Reading and writing speed is also affected by other factors, so SN850 may be slower than SN750 in actual use.

SN770 vs SN850: Advantages

The last aspect of SN770 and SN850 is the advantage. The following are the details:

Advantages of WD Black SN770 NVMe SSD:

  • Usually lower prices for the same capacity
  • Lower cost per gigabyte
  • 250 GB SSD entry price is cheaper

Advantages of the WD Black SN850 NVMe SSD:

  • Better read and write performance values
  • Models available with heat sinks and RGB lighting
  • Certified SSD for PS5 gaming console

SN770 vs SN850: Price

As I write this, the WD Black SN850 1TB is about $30 more expensive than the SN770 1TB. However, if you want good performance under heavy read/write loads, the WD Black SN850 is still worth the price. It works perfectly with a powerful gaming or productivity build. However, if your budget is limited, the SN770 will give you almost everything.

How to Migrate the Operating System to SSD

Whether you choose WD SN770 or SN850, you may plan to use it as the primary disk for gaming or work. There is a piece of Windows backup software for you. It’s called MiniTool ShadowMaker. It also offers you a powerful feature called Clone Disk, enabling you to transfer the entire system disk or data disk to HDD or SSD.

Now, you can download and install MiniTool ShadowMaker by clicking the below button to migrate the Windows OS from the original hard drive to SN770 or SN850.

MiniTool ShadowMaker TrialClick to Download100%Clean & Safe

Step 1: Connect SN770 or SN850 to your computer. After downloading and installing MiniTool ShadowMaker, run it to enter its main interface.

Step 2: Go to the Tools tab and click the Clone Disk part.

click Clone Disk

Step 3: Choose your system disk as your source disk and click Next.

choose the source disk

Step 4: Then, choose SN770 or SN850 as the target disk. Click Start to continue.

Tips:
All data on the target disk will be destroyed, so you should back up all data first on this disk.

Step 5: On the process page, all the information about the cloning will be listed including the source disk, destination disk, cloning elapsed time, and remaining time. You just need to wait patiently.

Step 6: When the disk cloning process is finished, you will receive a warning message, telling you that the source disk and the target disk have the same signature. Then, you need to remove or disconnect the original hard drive from your computer. In addition, if you want to boot the computer from the target disk, you need to change the BIOS order first.

the warning message
How to Clone SSD to Larger SSD on Windows 11? Here Are 2 Tools!
How to Clone SSD to Larger SSD on Windows 11? Here Are 2 Tools!

How to clone SSD to larger SSD for better performance on Windows 11? This post offers 2 tools and tells you how to do that with them in one-by-one steps.

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Bottom Line

To sum up, this post has shown what the SN770 and SN850 are and also shown their differences. Besides, this post also introduced MiniTool ShadowMaker for you to migrate OS to SN770 or SN850. If you want to do that, try it.

If you have any different idea for SN770 vs SN850 or have any problem with the MiniTool program, you can contact us via the email [email protected] and we will reply to you as soon as possible.

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