PSP (PlayStation Portable) and **Nintendo** are **different companies with different hardware philosophies, libraries, and ecosystems.**
| Aspect | Sony PSP | Nintendo Handhelds |
|---|---|---|
| Manufacturer | Sony Interactive Entertainment | Nintendo Co., Ltd. |
| Generations | PSP (2004) → PSP Go (2009) → **End** → PS Vita (2011) → **End** | Game Boy (1989) → GBA → DS → 3DS → **Switch (Hybrid)** → Switch 2 (Rumored) |
| Primary Media | UMD (Universal Media Disc) → Digital (PSN) | Cartridges (GB/GBA/DS/3DS) → Game Cards (Switch) |
| Architecture | MIPS (PSP) → ARM (Vita) — Multimedia focus (Video, Music, Browser, PS1 emu) | ARM (DS/3DS/Switch) — Gameplay innovation focus (Dual Screen, 3D, Hybrid, Motion) |
| Backward Compatibility | PSP plays **PS1 Classics** (digital). No PS2/PS3. Vita plays PSP/PS1 digital. | DS plays GBA. 3DS plays DS. **Switch plays NO physical legacy carts.** (NSO for digital legacy). |
Verdict: PSP = Multimedia powerhouse, great PS1/PSP library, dead. Nintendo = Gameplay innovation, massive 1st party, living ecosystem (Switch). Choose based on *which games you want to play*.