|
Sony Playstation 3 Technologies
Central processing unit (CPU)
3.2 GHz Cell processor: 1 PowerPC-based "Power Processing Element" and 7, 3.2 GHz Synergistic Processing Elements (SPEs). 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, called the "Local Store".
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 of the seven active SPEs is reserved for use by the system's OS, leaving six SPEs directly available to applications.
Graphics processing unit (GPU)
Custom 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:
Total 512 MB, split into:
- 256 MB Rambus XDR DRAM clocked at CPU die speed (3.2 GHz)
- 256 MB GDDR3 VRAM clocked at 700 MHz
Theoretical system bandwidth:
- 204.8 GB/s Cell Element Interconnect Bus (Theoretical peak performance)
- 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)
- 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), 2.5 GB/s (read)
Slot-loading disc drive compatible with:
- 8 cm GameCube optical disc.
- 12 cm Wii optical disc.
- Mask ROM by Macronix.
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)
Audio:
- S/PDIF optical output for digital audio
- Dolby TrueHD 5.1 minimum (Blu-Ray movies only; compatible sound equipment required)
- DTS-HD
- LPCM (DSP functionality handled by the Cell processor)
|
