I emulate PS3 games on my Steam Deck, and some of them run better than they did on the console

Emulating PlayStation 3 games on a Steam Deck has proven to be a remarkable achievement, with some titles surpassing the performance of their original hardware. The Steam Deck, equipped with an AMD Zen 2 CPU and RDNA 2 GPU, may seem underpowered for such complex emulation, but diligent optimization using RPCS3 has delivered impressive results. By effectively translating the Cell processor's instructions into x86-64 machine code and leveraging modern graphics APIs, the Steam Deck can run a significant portion of PS3 titles.

Key factors in achieving optimal performance include thread management, RAM/VRAM allocation, and adjusting SPU threads within RPCS3. Once these configurations are fine-tuned, PS3 games can run at locked frame rates and higher resolutions than the original console. For example, Demon's Souls and Armored Core 4 can now maintain smooth 60fps, a feat impossible on the PlayStation 3 itself.

Moreover, the Steam Deck's high-speed NVMe storage allows for native game loading, eliminating texture pop-in and reducing load times compared to the original hardware's mechanical Blu-ray drive and slower hard drive. Proper thermal and power management are essential to prevent overheating and subsequent performance throttling. With the right setup, including EmuDeck for automated configurations and per-game adjustments, the Steam Deck becomes an extraordinary platform for experiencing classic PS3 games with enhanced visual fidelity and performance.