Samsung QVO vs EVO: 6 Key Differences and Full Comparison

samsung qvo vs evo

Samsung QVO vs EVO: 6 Key Differences and Full Comparison

Samsung is one of the leading companies that manufacture Solid-State Drives (SSDs). You should check out these Samsung SSDs if you are looking for sufficient storage space, transfer speed, and the best SSDs for NAS.

Samsung produces various SSDs, including EVO, QVO, and PRO. You should choose your preferred SSD based on your intended use and available budget. 

Many people assume that SSDs work the same and can’t tell the difference. As such, our review of Samsung QVO vs EVO should help you decide on the SSD that best meets your storage, gaming, or work-related needs. Keep reading to learn their differences.

Samsung QVO vs EVO: Side-by-Side Comparison

QVO vs EVO comparison infographic


Storage1TB, 2TB, 4TB, and 8TB250GB, 500GB, 2TB, 1TB, and 4TB
Transfer Speed80MB/s without the TurboWrite Technology300MB/s without the TurboWrite Technology
Cache Memory1GB, 2GB, 4GB, and 8GB250MB, 1GB, 2GB, and 4GB
Warranty3-year warranty5-year warranty
TBW2,880, 1440, 720, and 3602,400, 1200, 600, 300, and 150
Storage MemorySamsung V-NAND 4bit MLCSamsung V-NAND 3bit MLC

Samsung QVO vs EVO: What’s the Difference?

Samsung QVO and EVO are among the best SSDs in the market. However, although both devices are somewhat similar, they have considerable differences. Let’s discuss their differences in detail.

Storage Size

SSDs are primarily used for storage, making this section an essential aspect of our Samsung QVO vs EVO review. Though EVO SSDs are expensive, the QVO is better when comparing their storage size.

For example, you can get various storage sizes for the Samsung 870 EVO, such as 250GB, 500GB, 1TB, and 4TB. In contrast, the Samsung 870 QVO gives you 1TB, 2TB, 4TB, and 8TB.

One thing to note is that the smallest Samsung QVO has a capacity of 1TB, while the smallest EVO has a memory capacity of 250GB, showing QVO’s storage size superiority.

SAMSUNG 870 EVO SATA III SSD 1TB 2.5” Internal Solid State Drive, Upgrade PC or Laptop Memory and Storage for IT Pros, Creators, Everyday Users, MZ-77E1T0B/AM
  • THE SSD ALL-STAR: The latest 870 EVO has indisputable performance, reliability and compatibility built upon Samsung's pioneering technology. S.M.A.R.T. Support: Yes
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  • MORE COMPATIBLE THAN EVER: The 870 EVO has been compatibility tested**** for major host systems and applications, including chipsets, motherboards, NAS, and video recording devices
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08/28/2023 11:48 pm GMT

Not many people go for the 8TB SSD because it’s expensive, and you may not fill it. However, the 8TB SSD is handy when storing huge data files. When comparing the DRAM cache memory, the QVO is superior.

With the Samsung EVO, you will get 512MB, 1GB, 2GB, and 4GB of DRAM cache memory. In contrast, the Samsung QVO offers 1GB, 2GB, 4GB, and 8GB. Ultimately, always go for the Samsung QVO when looking for an SSD with the largest storage size.

Transfer Speed

Transfer speed means how fast you can send a document from a device to the SSD and vice versa. You must account for an SSD’s transfer speed when comparing different models to ensure the drive you buy can support the intended operations. Overall, the Samsung EVO is faster than the QVO. Let’s look at some numbers that determine their speeds. 

Suppose you send a 40GB file from your laptop to a 1TB Samsung 870 QVO and a 1TB Samsung 870 EVO. You would expect similar transfer speeds given the SSDs have equal storage sizes. However, the Samsung 870 EVO will likely have a higher transfer speed than the QVO SSD.

When sending your 40GB file to the QVO, the file is usually stored in the Quad Layer Cell (QLC) and Single Layer Cell (SLC) concurrently. However, the QVO’s primary memory unit is the QLC memory, meaning the SLC memory is a buffer.

It implies that your file must first be stored in the SLC before it’s transferred to the QLC during idle time. Data transfer from your laptop to the SLC and later QLC is facilitated by the TurboWrite Technology only found on the latest Samsung SSDs. Samsung developed the technology to address users’ concerns about slow speeds when transferring large files.

Without the TurboWrite Technology, the QVO will transfer your 40GB file at approximately 80MB/s. On the other hand, with the TurboWrite Technology, the transfer speed will be considerably high (up to 500MB/s).


However, you should also consider the QVO’s transfer speed after the SLC buffer is sealed. Remember, QVO SSDs have different buffer sizes that increase with the drive’s capacity. The transfer speeds may reduce significantly once the SLC buffer is filled.

For example, a 1TB Samsung QVO SSD has about 40GB cache space, which would be filled in the first data transfer. Thus, the transfer speeds would decrease considerably should you transfer another 40GB file. This is because your QVO will transfer the data directly to the QLC as the SLC is filled with cache, making it slower.

In contrast, the EVO will be faster than the QVO during the second transfer. The EVO will undergo the same transfer process, where the data will first be stored in the SLC before being transferred to the QLC.

However, the EVO’s transfer speed without the TurboWrite Technology is 300MB/s. It means that during the second transfer, the EVO will transfer your files to the QLC at 300MB/s, which is faster than QVO’s 80MB/s. 


Most people today prefer SSDs over HDDs because of their performance. This is because SSDs have better speeds and higher capacities than HDDs. However, many people are turning to SSDs, prompting the need to evaluate different SSDs’ performance. Overall, EVO SSDs perform better than QVO drives. 

The main similarity is that both SSDs use the QLC NAND flash memory. The primary drawback of this flash memory is that it has the slowest transfer speed. However, Samsung SSDs have TurboWrite Technology, which curbs this problem. This feature improves the QVO and EVO’s performance, especially the transfer speeds.

The Samsung TurboWrite Technology uses a portion of the SSD’s flash memory to increase transfer speed and boost the SSD’s longevity. The main limitation of this technology is that the transfer speed decreases after depleting the cache space.

However, the Samsung EVO’s performance is not significantly affected when the SLC is full because it has a higher transfer speed than the QVO. 


When comparing the QVO and EVO, one may think that the EVO is better suited for all tasks given its superior performance and transfer speeds. However, since these SSDs have varying sizes, they are used for different purposes.

  • Samsung's latest 2nd generation QLC SSD with up to 8TB of storage capacity
  • SATA interface limit of 560/ 530 MB/s sequential speeds
  • Capacity increases reliability using a refined ECC algorithm for stable performance
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08/29/2023 07:29 am GMT

The Samsung QVO has a higher storage capacity but slow transfer speeds. It means that these SSDs are more suited for read-intensive tasks.

In contrast, Samsung EVO has a lower storage capacity but a higher transfer speed, making it more suited for write-intensive tasks. The Samsung QVO is better when looking for an SSD for general use, while the Samsung EVO is better for more intensive tasks.   


The best way to know the lifespan of an SSD drive is to check the terabytes written (TBW). TBW is the amount of information that can be stored in these drives over their lifespan.

A well-maintained SSD may last approximately 5 years, but it depends on your usage and the model. The factors affecting the SSD’s lifespan include:

  • The drive’s overall quality – It entails the drive’s overall manufacturing quality.
  • Drive usage – It involves how one uses the drive. For instance, if you are using your SSD daily for high-intensive tasks, it may reduce its lifespan.

When comparing these two drives, EVO SSDs have a higher lifespan than QVO. EVO drives use TLC NAND, which has a higher longevity than QVO’s QLC NAND.

The TBW ratings of both SSDs are different. Here are some examples:

  • 1TB 870 EVO drive has 600TBW, while 870 QVO has 360TBW.
  • 2TB 870 EVO drive has 1,200TBW, while 870 QVO has 720TBW.
  • 4TB 870 EVO drive has 2,400TBW, while 870 QVO has 1,440TBW.

Based on the figures above, it’s clear that EVO SSDs have a higher TBW than QVO SSDs. It makes the EVO more durable and better suited for regular use.

Price and Warranty

We cannot wrap up our Samsung QVO vs EVO review without comparing their prices. Generally, SSD prices depend on their storage sizes.

For example, the Samsung 870 EVO has a start price of $120 for a 1TB drive. In contrast, the Samsung 870 QVO may cost $100 for the same storage capacity.

The warranty is also different for both drives. For instance, EVOs have a 5-year warranty, while QVOs have a 3-year warranty. The Samsung QVO is cheaper than the EVO, making it ideal for general usage.

Samsung QVO History

The Samsung QVO 870 was initially released in 2020, and it’s an upgrade to the Samsung QVO 860, which was released in 2018. The QVO provides high-quality performance that wasn’t in the QVO 860.

For example, the QVO 870 has a sequential lead of 560 MB/s and a write of 530MB/s. The QVO 870’s speed is 13% higher than the QVO 860.

The QVO 870 also has a higher TBW than the QVO 860, making it more durable. Ultimately, the QVO 870 is a better and more improved version of the QVO 860.

Evolution of Samsung EVO

The Samsung EVO 870 was initially released in 2020. However, Samsung released another updated version in 2021. The EVO 870 was an upgrade to the Samsung EVO 860, which was released in 2018.

One of the upgrades is in the drives. For example, the EVO 870 uses the NVMe drive, while the EVO 860 uses the SATA drive, which implies that the EVO 870 is faster than the EVO 860.

Additionally, the EVO 870 has a higher TBW and a longer warranty, depicting this device’s evolution within two years. The EVO 870 is superior and more reliable than the EVO 860.

Samsung QVO vs EVO: 5 Must-Know Facts

  1. You will get a 5-year warranty if you buy the Samsung EVO. This is better than the QVO, which offers a limited warranty of 3 years.
  2. The Samsung QVO and EVO aren’t limited to Samsung laptops. However, you must check your laptop’s specifications to ensure compatibility.
  3. You aren’t limited to a specific battery capacity when looking for an EVO or QVO.
  4. You can recover data from your damaged or dead QVO or EVO. However, recovery is difficult because these devices are more sophisticated than HDDs.
  5. The Samsung EVO has six-proof protection. This SSD has a double layer protection and can withstand wear out, drops, high temperatures, and water.

Samsung QVO vs EVO: Which One Is Better?

Though both SSDs have similar features, various aspects separate them. One must evaluate these differences before purchasing the SSD that suits their intended use. 

So, which SSD is better between the Samsung QVO and EVO? Regarding the storage size, the Samsung QVO is better than EVO. The QVO’s storage capacity ranges between 1TB and 8TB, compared to 250GB and 4TB in EVO SSDs. Thus, go for the QVO if you want an SSD for general use and storage.

However, the Samsung EVO is the best overall option. This SSD is reliable and offers superior performance. The EVO is the right SSD to acquire when dealing with high-intensive tasks.

Additionally, you will get a generous warranty if you choose the EVO. Ultimately, deciding between these SSDs depends on whether you want a cheaper or more reliable drive.

Samsung QVO vs EVO: 6 Key Differences and Full Comparison FAQs (Frequently Asked Questions) 

Which is better between EVO and QVO?

Samsung EVO is better than QVO when comparing their general performance. However, the EVO isn’t superior in every aspect as it depends on one’s preference. If you are dealing with large files, you should either go for a PRO or EVO to avoid transfer delays.

Which one is faster between the EVO or QVO?

The Samsung EVO is faster than QVO as it has a higher transfer speed, even while not using the Intelligent TurboWrite. The EVO is approximately four times faster, but its speed depends on the file size.

Which SSD is better for gaming between the EVO and QVO?

If you love gaming, it’s better to ditch your HDD and switch to the SSD. However, with so many SSD options, it can be challenging to choose the right one. Thus, settle for the EVO since it’s fast and ideal for intensive tasks, making it more suited for gaming.

Do most SSDs have a higher lifespan?

The main advantage of using SSDs over HDDs is that they can last long. Many SSDs have a higher TBW, making them reliable and durable. The most durable SSD may last for over five years, provided you maintain it properly.

Is it worth buying the Samsung QVO?

You shouldn’t hesitate to acquire the Samsung QVO as it’s one of the most reliable and budget-friendly SSDs in the market. Even though the QVO isn’t superior to the EVO, it has superior speeds and performance than standard HDDs. Furthermore, if you aren’t familiar with the QVO and the EVO, you may not be able to tell the difference between the two.

Is the Samsung EVO durable?

The Samsung EVO’s durability depends on one’s usage. For instance, if you use it mainly for demanding applications, such as gaming, it may not last long compared to other purposes. This SSD can last for approximately 5 to 7 years, but it may last for 3 to 5 years when used for gaming.

Are QVOs more expensive than EVOs?

EVOs are more expensive than QVOs. However, their prices depend on the storage capacities. For instance, a 1TB EVO is more expensive than an 1TB QVO.

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