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PSP Specifications:

PSP CPU
MIPS R4000 32-bit core
128-bit bus
1-333MHz (1.2V)
8MB eDRAM
FPU, VFPU (2.6 billion flops)
3D graphics extended instructions

Graphics Core specs
1-166MHz (1.2V)
2MB eDRAM (VRAM)
664 million pixels per second pizel fill rate
3D curved surface and 3D polygon engine
Maximum of 33 million polygons per second
24-bit full color (RGBA)

Sound Core
VME (Virtual Mobile Engine)
Reconfigurable DSP
166MHz (1.2 V)
128-bit bus
CODEC capabilities
3D sound, 7.1 channels
Synthesizer, effecter, and other abilities
ATRAC3 plus, AAC, MP3 for audio

Media Engine
MIPS R4000 32-bit core
128-bit bus
1-333MHz (1.2V)
2MB eDRAM submemory
90nm CMOS

Media
UMD (Universal Media Disc)
60mm-diameter disc
660nm laser diode
1.8GB capacity (dual-layered disc)
11Mbps transfer rate
AES crypto system
Unique disc ID
Shock proof
Regional code system
Parental lock system
Repeat ordering system

More Specifications
16:9-format widescreen TFT  (480x272 pixels, 24-bit full color)
MPEG4 AVC decoder
Wireless LAN (802.11b)
IrDA (Infrared Data Association)
USB 2.0 interface
Memory Stick slot
AV in/out
Stereo headphone out
Lithium ion battery