Prior to the release of firmware 4.88, the previous update (4.87) had been released in December 2020. The release of a new update in mid-2021 was surprising to the gaming community, as the PlayStation 5 had already launched, and the PS3 was well past its end-of-life cycle for active software development.
A common question is: “Is newer firmware always better?” Not necessarily. Sony released firmware 4.89 and 4.90 in 2022/2023. However, many in the RPCS3 community still default to the 2021 version. Why?
| Metric | Firmware 4.81 (2018) | Firmware 4.88 (2021) | Firmware 4.90 (2023) | |--------|----------------------|----------------------|----------------------| | Boot time (seconds) | 28 | 22 | 23 | | RAM usage (idle) | 512 MB | 498 MB | 510 MB | | Compatibility rate | 62% | 73% | 72% | | SPU thread stability | Moderate | High | High |
Winner: 2021 (4.88) offers the best balance of low memory overhead and maximum game compatibility. rps3 firmware 2021
Specific game tests (conducted on an Intel i7-12700K / RTX 3070):
If you have downloaded a copy of the PS3 4.88 firmware (ensure you obtain it legally via Sony’s official site or a legitimate backup), follow these steps:
Step 1: Download RPCS3
Grab the latest build from the official website. Note: Even in 2025, the emulator remains backwards compatible with 2021 firmware. Prior to the release of firmware 4
Step 2: Install Firmware
Step 3: Verify the Version
After installation, check the bottom-right corner of the RPCS3 window. It should display:
Firmware: 4.88 (or 4.87 if using the early 2021 build).
Step 4: Install Game Updates (Optional)
Some games require a minimum firmware version. With 4.88, you can run virtually any PS3 game ever released, as Sony stopped major updates after early 2022. Step 3: Verify the Version After installation, check
Important: Do NOT rename the .PUP file. RPCS3 relies on the hash checksum. If you modify the filename, the emulator will reject it.
While RPCS3 cannot connect to the real PlayStation Network, the 2021 firmware improved local trophy management. Users reported that the “rps3 firmware 2021” allowed the emulator to correctly parse trophy data for over 95% of games without manual patches.
The release of firmware 4.88 generated a polarized reaction: