How much faster is Gen 4 SSD than Gen 3?
The transition from Gen 3 to Gen 4 Solid-State Drives (SSDs) has garnered significant attention in the storage industry. While both technologies have their advantages, Gen 4 SSDs boast a remarkable doubling in performance, leaving Gen 3 behind in the dust. But what exactly are the benefits, and why should you upgrade to the latest generation? In this article, we’ll explore the key differences and illustrate the improvements Gen 4 SSDs bring to the table.
Performance comparison:
Before we delve into the details, it’s essential to understand that PCIe 4.0 is the key enabler of Gen 4 SSD performance. While every slot is backward compatible, having a Gen 4 drive in a Gen 3 slot would mean that only the 3.0 speeds are achieved. Thus, we’ll focus exclusively on Gen 4 environments.
Sequential read performance:
Up to 40% faster: A Gen 4 SSD offers sequential read speeds of up to 5,000 MB/s, surpassing Gen 3 speeds of around 3,500 MB/s. As shown in the table below, the improvements are pronounced:
| Generation | Read Speed (MB/s) |
|---|---|
| Gen 3 | Up to 3,500 MB/s |
| Gen 4 | Up to 5,000 MB/s |
Sequential write performance:
Up to 43% faster: Similarly, Gen 4 SSDs boast sequential write speeds up to 4,400 MB/s, roughly 43% faster than Gen 3’s capacity of up to 3,100 MB/s. The following table highlights this significant gap:
| Generation | Write Speed (MB/s) |
|---|---|
| Gen 3 | Up to 3,100 MB/s |
| Gen 4 | Up to 4,400 MB/s |
IOPS Performance:
Increased throughout: While the above examples focus on sequential speeds, Gen 4 SSDs exhibit an even larger advantage in random I/O operations. I/O operations are a critical performance metric for most users.
| Generation | Random Write IOPS | Random Read IOPS |
|---|---|---|
| Gen 3 | Up to 75,000 | Up to 90,000 |
| Gen 4 | Up to 175,000 | Up to 420,000 |
Who benefits from the upgrade:
So, who needs the speed bump of a Gen 4 SSD?
- Gaming users: If you’re an enthusiast or a competitive gamer, the doubling in sequential read speeds makes a tangible difference. For example, the improved throughput can enable more seamless fast travel and quicker loading of large maps in popular FPS games.
- Productivity enthusiasts: File transfer, encoding, and rendering tasks benefit greatly from the increased bandwidth.
- Video editing enthusiasts: The improved IOPs and sequential read speed make video editing tasks much more efficient.
- Data-intensive users: People working with massive files (e.g., engineers, scientists, and graphic designers) will notice the significance of increased read and write speeds.
Should I upgrade my SSD?
If you’re already pleased with your current SSD and don’t rely heavily on the fastest transfer speeds or IOPS, an upgrade might not be necessary, especially considering the potentially reduced compatibility.
How to upgrade to a Gen 4 SSD:
Before purchasing, ensure your system’s motherboard or PCIe slot is compatible with the newer standard.
- Check your system manual or specifications.
- Verify your power supply supports the required wattage, as some Gen 4 SSDs have higher requirements.
- Consider dual-port drives that can operate independently for reduced bottlenecks.
To summarize, Gen 4 SSDs bring substantial performance advantages over their Gen 3 counterparts, doubles sequential read speeds, increases IOPS by a landslide, and benefits specific user segments. When upgrading your SSD, keep compatibility and required power in mind. Although the performance increase is enticing, consider your specific usage and the compatibility factors before committing to the upgrade.