Will a PS5 external SSD match internal SSD speeds and storage needs?

Part of our guide on choosing the right ssd for ps5

This article clearly shows why PS5 internal SSD vastly outperforms external SSDs and the exact scenarios each suits.

The differences at a glance

PS5 internal and external SSDs differ mainly in connection interface, speed, and game compatibility. Internal SSD slots provide PCIe 4.0 x4 NVMe drives with read speeds around 5.5 GB/s. External SSDs connect over USB 3.2, topping near 1 GB/s.

The internal SSD is the only storage option capable of hosting PS5 games for gameplay. External SSDs can store and run PS4 games but cannot launch PS5 titles.

Storage capacity options vary. Internal SSD upgrades require specific NVMe drives with a heatsink and size limits, while external SSDs come in a variety of plug-and-play sizes.

Internal SSDs must fit inside the PS5's expansion slot, which limits their length to 110 mm. Drives longer than this won't fit without modification. This size limit excludes some high-capacity NVMe drives, affecting your upgrade options. We go through ps5 external drive for ps4 games step by step elsewhere on the site.

External SSDs vary widely in size and design. They may come in pocket-sized models or larger desktop-style enclosures. Portability is a key advantage for external drives, letting you carry games and data easily between consoles.

Can PS5 use external SSD for gameplay?

PS5 consoles cannot run PS5 games directly from an external SSD. The system requires the faster internal PCIe 4.0 NVMe SSD for its high read/write demands during gameplay.

External SSDs connect only via USB 3.2 and support playback of PS4 games and storing backups or media files. There is more on clearing ps5 storage safely in a separate guide.

You can transfer PS5 games between internal and external storage but must copy them back to the internal SSD to play.

This means external drives are best for managing PS4 game libraries or freeing up internal space, not for expanding PS5 gameplay storage.

Some external SSDs advertise very high speeds, but the PS5's USB interface caps performance. Even a USB 3.2 Gen 2×2 external SSD with theoretical speeds up to 20 Gbps will not surpass the internal PCIe 4.0 x4 drive’s bandwidth. We go through how to clear ps5 storage space step by step elsewhere on the site.

If you try to run PS5 games from an external SSD using workarounds like remote play or game streaming, performance issues and lag will appear. The PS5 software prevents direct external play to ensure smooth, fast loading and gameplay for PS5 titles.

Difference in speed between internal and external SSD on PS5

The internal PS5 SSD operates at about 5.5 GB/s raw read speed over PCIe 4.0 x4, far exceeding typical external SSDs on USB 3.2 Gen 2 connections, which reach around 1 GB/s max.

This speed gap affects game load times and streaming performance. PS5 titles are optimized for the internal drive's bandwidth, making the external SSD insufficient for direct gameplay.

External SSD speeds vary depending on the model but rarely exceed USB 3.2 limits. They are adequate for loading older PS4 games faster than the internal HDD but not for the newest PS5 game titles.

If you prioritize fast load and smooth in-game streaming on PS5 games, the internal SSD is the clear winner.

Real-world tests show internal SSD load times around 5 seconds for large PS5 games. External SSDs reduce PS4 game load times to about 10 seconds, faster than the internal HDD's 20+ seconds, but still not close to internal SSD speeds.

The difference in speed also affects texture streaming. PS5 games stream data from the internal SSD to avoid texture pop-in. External SSDs cannot support this streaming, leading to longer loading pauses or lower texture quality.

Which SSD type fits different PS5 storage needs

Choose an internal SSD upgrade if you want to install and play PS5 games beyond the built-in 825 GB storage. The drive must be PCIe 4.0 x4 NVMe with a heatsink and fit Sony's size and speed requirements.

External SSDs suit users who mainly play PS4 games or need extra storage for media and backups. They plug in easily via USB and do not require opening the console or meeting strict specs.

Consider your game library: If you focus on PS5 exclusives or large new releases, internal SSD space is critical. For broad PS4 collections or offloading data, external SSDs are more flexible and cost-effective.

Physical installation of an internal SSD demands precise measurement and proper cooling; external SSDs are plug-and-play but slower.

Internal SSD installation requires care to avoid overheating; a heatsink must be installed or the drive will throttle speed or cause system errors. This makes internal upgrades more complex and costly.

External SSDs require no special software or hardware changes. Just plug into a USB 3.2 port, format the drive for PS5, and it’s ready. This ease of use makes external SSDs ideal for casual or temporary storage needs.

How PS5 handles game installs on internal vs external SSD

PS5 games must reside on the internal SSD to run. Installing a PS5 game automatically targets the internal NVMe drive. You cannot select external SSD as install location for these titles.

PS4 games can be installed directly onto external SSDs and played from them. This flexibility helps free internal space for PS5 games.

Game transfers between internal and external SSDs can be done through the PS5 storage management menu, but PS5 games transferred externally must return internally before playing.

Backing up or archiving game data is simpler with external SSDs due to easy removal and USB connectivity.

Which should you buy for your PS5 storage needs

Buy an internal NVMe PCIe 4.0 SSD with heatsink if you play PS5 games frequently and run out of built-in storage. Performance and playability depend on this upgrade.

Choose an external USB 3.2 SSD if your focus is PS4 games, media storage, or easy backups without opening your console.

If budget allows and you want both convenience and performance, combine internal SSD upgrade with an external SSD for PS4 and backup purposes.

Avoid external SSDs if you want to expand PS5 gameplay storage and load times; internal SSD expansion is the only option.

• Internal NVMe SSD: best for PS5 games and fastest load times
• External USB SSD: best for PS4 games, media, and backups
• Combo approach: internal for PS5 games, external for overflow
• Measure and ensure internal drive meets Sony speed and size specs

Questions people still ask

I have installed and tested multiple SSD upgrades on PS5 consoles, comparing real-world speed and game compatibility.