Playstation 3 Technical Specification / Features:

The following specifications are based on a press release by Sony at the 2005 E3 Conference, and slides from a Sony presentation at the 2006 Game Developer's Conference.

Central processing unit (CPU)
3.2 GHz Cell multi-core processor: 1 PowerPC-based "Power Processing Element" and 8 3.2 GHz Synergistic Processing Elements (SPEs) (7 working). The PPE has a 512 KB L2 cache and one VMX (AltiVec) vector unit. Each of the eight SPEs is a RISC processor with 128-bit 128 SIMD GPRs and superscalar functions. Each SPE has 256 KB of L1 cache/software-addressable 4.8 GHz SRAM.

Only seven SPEs are active; the eighth is redundant, to improve yield. If one of the eight has a manufacturing defect, it is disabled without rendering the entire unit defective. Additionally, one SPE is reserved for use by the system's OS, leaving six SPEs directly available to applications

Graphics processing unit (GPU)
The rear of the 20GB PlayStation 3 as it was shown at E3 2006. AC IN, AV MULTI OUT, DIGITAL OUT and an RJ-45 network port are visibleCustom RSX or "Reality Synthesizer" design co-developed by NVIDIA and Sony:

Based on NVIDIA G71 architecture, otherwise known as NV47
Clocked at 550 MHz
128-bit DDR memory interface
211.2 GFLOPS programmable (384 FLOPS per clock)
1.8 TFLOPS
Multi-way programmable parallel floating point shader pipelines
136 shader operations per clock
74.8 billion shader operations per second (100 billion with CPU)
24 2D texture lookups per clock
1.1 billion vertices per second
128-bit pixel precision offers rendering of scenes with high dynamic range imaging
Full high definition output (up to and including 1080p)

Memory
256 MB Rambus XDR DRAM clocked at CPU die speed (3.2 GHz)
256 MB GDDR3 VRAM clocked at 700 MHz
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Theoretical system bandwidth
204.8 GB/s Cell Element Interconnect Bus (Theoretical peak performance)[22]
Cell FlexIO Bus: 35 GB/s outbound, 25 GB/s inbound (7 outbound and 5 inbound 1Byte wide channels operating at 5 GHz) (effective bandwidth typically 50-80% of total)[23]
25.6 GB/s to Main Ram XDR DRAM: 64 bits × 3.2 GHz / 8 bits to a byte
22.4 GB/s to GDDR3 VRAM: 128 bits × 700 MHz × 2 accesses per clock cycle (one per edge) / 8 bits to a byte
RSX 20 GB/s (write), 15 GB/s (read)
SB 2.5 GB/s write and 2.5 GB/s read

Audio/video output:

Video
Supported screen resolutions: 480i, 480p, 720p, 1080i, 1080p
Multiple AV outputs
Composite
S-Video
Component video (output up to and including 1080p)
HDMI port (Digital video output; 60 GB model only)

Sound
S/PDIF optical output for digital audio
Dolby Digital 5.1 minimum
DTS
LPCM (DSP functionality handled by the Cell processor)
Dolby-HD (Blu-Ray movies only; compatible sound equipment required)[citation needed]

Storage
Blu-ray Disc: PlayStation 3 BD-ROM, BD-Video, BD-R, BD-RE. 2x (9.0MB/sec)
DVD: PlayStation 2 DVD-ROM, DVD-Video, DVD-ROM, DVD-R, DVD-RW, DVD+R, DVD+RW. 8x (11.0MB/sec max)
CD: PlayStation CD-ROM, PlayStation 2 CD-ROM, CD-DA, CD-DA (ROM), CD-R, CD-RW. 24x (3.5MB/sec max)
SACD: SACD Hybrid (CD layer) SACD HD. 2x
Hard Drive: Pre-Installed 20 GB / 60 GB (depending on package), 2.5", detachable/upgradeable, with Linux pre-installed.[24][25]
Memory card readers (60 GB model only)
Memory Stick standard/Duo and standard/mini slots
CompactFlash slot
SD/MMC slot

Communications
One Gigabit Ethernet Port
USB 2.0 (x4)
Bluetooth 2.0
Wi-Fi (60 GB model only)
IEEE 802.11b/g

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