SSD 2026 Value Tier - Gen4 vs. Gen5 Performance Comparison

SSDs have become an essential storage device in modern PC environments. They directly impact overall system performance, from operating system boot times to game loading speeds and file transfer rates. As of 2026, both Gen4 and Gen5 SSD markets coexist, leaving users to grapple with which product to choose. This article compares the performance differences between Gen4 and Gen5 SSDs, categorizes them into value tiers based on speed, durability, and price, to help you make the optimal choice.

The Current Status and Features of Gen4 SSDs

Gen4 SSDs are based on the PCIe 4.0 interface and offer significant performance improvements over the previous generation, Gen3 SSDs. For the past few years, Gen4 SSDs have been a popular choice for many users due to their stable performance and relatively reasonable prices. However, with the emergence of Gen5 SSDs, Gen4 SSDs are gradually shifting towards the budget market.

Gen4 SSD Tier Classification

The following is a classification of Gen4 SSDs into tiers (S to C) based on speed, durability, and price:

• S Tier (Excellent): Samsung 990 Pro, WD Black SN850X
  • Speed: Offers sequential read speeds of 7,450 MB/s and sequential write speeds of 6,900 MB/s. This helps reduce game loading times and save time when transferring large files. Impressive IOPS (Input/Output Operations Per Second) of 1.2 / 1.55 million also support outstanding performance.
  • Durability: Provides stable durability thanks to a combination of excellent controllers and NAND flash memory.
  • Price: 2TB models vary in price depending on market conditions, but start at around $179.
• A Tier (Good): important P5 Plus
  • Speed: Delivers performance at the average level of Gen4 SSDs.
  • Durability: Offers solid durability.
  • Price: Allows you to experience Gen4 SSDs at a relatively affordable price.
• B Tier (Average): (Specific models are omitted)
  • Speed: Provides below-average speeds.
  • Durability: Offers durability at a typical level.
  • Price: Can be purchased at a very affordable price.
• C Tier (Budget): (Specific models are omitted)
  • Speed: Slow speeds can cause system performance degradation.
  • Durability: Low durability may result in a shorter lifespan.
  • Price: Very inexpensive, but considering performance and durability, the investment value is low.

The Current Status and Features of Gen5 SSDs

Gen5 SSDs are based on the PCIe 5.0 interface and offer twice the speed of Gen4 SSDs. However, achieving these fast speeds requires high-performance controllers and efficient thermal management systems. Gen5 SSDs are still in the early stages and have drawbacks such as high prices and potential compatibility issues.

Real-World Performance of Gen5 SSDs

While Gen5 SSDs theoretically offer very fast speeds, the actual perceived performance varies depending on the usage environment. For example, transferring a 50GB video project will be completed much faster with a Gen5 SSD compared to a Gen4 SSD. However, you may not notice a significant difference when performing general web browsing or document editing. Gen5 SSDs generate a high amount of heat, making cooling solutions essential to prevent performance degradation.

Gen4 vs. Gen5: Performance Comparison

The biggest difference between Gen4 and Gen5 SSDs is speed. Gen5 SSDs offer up to twice the speed of Gen4 SSDs. However, to fully utilize the performance of a Gen5 SSD in a real-world environment, a high-performance PC environment and appropriate cooling solutions are necessary. If you're in a typical PC usage environment, Gen4 SSDs are sufficient.

Gen5 SSDs still have drawbacks such as high prices and potential compatibility issues. They also require cooling solutions due to high heat generation. Therefore, Gen5 SSDs are suitable for high-end PC users or those who want to experience the latest technology.

Which SSD Offers the Best Value?

Considering value for money, the Samsung 990 Pro remains a good choice. It offers both excellent performance and a reasonable price, and is available in various capacities to suit user needs. If your budget is limited, the important P5 Plus is also worth considering. It delivers performance at the average level of Gen4 SSDs while being relatively inexpensive.

Gen5 SSDs still have drawbacks such as high prices and potential compatibility issues. Therefore, in a typical PC usage environment, Gen4 SSDs are sufficient. If you want to experience the latest technology, you can consider a Gen5 SSD, but you should carefully consider your budget and compatibility.

to choose the optimal SSD for you.

---

Disclaimer: This article is for informational purposes only and does not constitute investment advice. Investment decisions should be made based on your own judgment and responsibility.