The PlayStation 5 (PS5) features a custom high-speed SSD that drastically improves game loading performance compared to previous-generation consoles. Here's an overview of the improvements with the PS5's SSD and how high-speed external SSDs perform:
### 1. **PS5's Internal SSD Performance**:
- **Custom NVMe SSD**: The PS5 comes with an 825GB custom NVMe SSD (with around 667GB usable), with a bandwidth of 5.5 GB/s (raw) and 8-9 GB/s (compressed).
- **Load Times**:
- Games load almost instantly, with most titles loading within 1–3 seconds.
- Fast travel in open-world games is nearly instantaneous, significantly reducing downtime between game areas.
- **Streaming Assets**: Developers can stream high-quality assets seamlessly due to the SSD's speed, eliminating bottlenecks typically seen in traditional hard drives.
### 2. **High-Speed External SSD (for PS4 games)**:
- **Limitations**: External SSDs, even if high-speed, are only used for playing PS4 games on the PS5. PS5 titles must be run from the internal SSD.
- **External SSD Performance**:
- When using a high-speed external SSD (such as a USB 3.1 or 3.2 SSD), PS4 games benefit from reduced loading times.
- Load times on external SSDs can be significantly faster than using a traditional HDD, though not as fast as PS5 games running on the internal SSD.
### 3. **Comparison**:
- **Internal SSD (PS5 titles)**: ~1–3 seconds for load times in many games.
- **External SSD (PS4 titles)**: Depending on the game, load times are cut down from minutes (on HDD) to seconds, but still slower than the internal SSD.
### 4. **Expansion SSDs**:
- **M.2 SSD Support**: The PS5 supports expansion through M.2 SSDs (with the right specifications). These can match or come close to the internal SSD's performance, offering a similar experience in terms of load times and asset streaming when running PS5 games.
In conclusion, the PS5's custom high-speed SSD significantly reduces load times and enhances gameplay performance. External SSDs, while useful for PS4 games, don’t match the internal drive's speed but can still improve load times compared to traditional hard drives.
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