Video Games and Consoles
Megalong Games > PS3
The PlayStation 3 (abbreviated PS3) is Sony's seventh generation era video game console in the PlayStation series. It is the successor to the PlayStation 2 and will mainly compete against Microsoft's Xbox 360 and Nintendo's Wii.
Sony has stated that the PlayStation 3 will have backward compatibility with the PlayStation and PlayStation 2, and that every PS1 and PS2 game that observes its respective system's TRC (Technical Requirements Checklist) will be playable on PS3 at launch.
Contrary to previous reports that PlayStation 2 emulation would be accomplished through software, the July issue of Japanese magazine Ultra One reports that the current design of PlayStation 3 includes the core PS2 chipset.
The PlayStation 3 does not include interfaces for legacy PlayStation devices such as the DualShock controller. It is not known at this time whether USB devices for PlayStation 2 will be compatible with PlayStation 3.
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) The rear of the 20 GB PlayStation 3 as it was shown at E3 2006. AC IN, AV MULTI OUT, DIGITAL OUT and an RJ-45 network port are visible. Enlarge The rear of the 20 GB PlayStation 3 as it was shown at E3 2006. AC IN, AV MULTI OUT, DIGITAL OUT and an RJ-45 network port are visible.
Custom RSX or "Reality Synthesizer" design co-developed by NVIDIA and Sony:
* Based on NVIDIA NV47 architecture * 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)
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
* 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) * 51.2 GB/s SPE to local store * Experimental Sustained bandwidth for some SPE-to-SPE DMA transfers - 78 to 197 GB/s. * 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) * System Bus (separate from XIO controller) 2.5 GB/s write and 2.5 GB/s read
* Supported screen resolutions: 480i, 480p, 720p, 1080i, 1080p * Multiple AV outputs o Composite o S-Video o Component video (output up to and including 1080p) o HDMI 1.3 port (Digital video output; 60 GB model only)
* S/PDIF optical output for digital audio up to 7.1 sound * Dolby TrueHD (Blu-Ray movies only