Talk:CELL BE
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Cell Broadband Engine
The Cell CPU has one 3.2Ghz PPE (Power Processor Element) with two threads and eight 3.2Ghz SPE (Synergistic Processing Elements).
The PPE is a general purpose CPU, while the eight SPE are geared towards processing data in parallel. One SPE is disabled to increase yield, so the PS3 can have at most 9 threads runnings at the same time (2 from PPE and 7 from SPE). Note that one SPE is reserved for the hypervisor, so PS3 programs can take advantage of 8 threads. Both the PPE and SPE of the Cell are 64 bit, and manipulate data in Big Endian.
Specifications
- 1 PPE (Power Processor Element)
- 3.2Ghz
- 64 bit, Big Endian
- 2 threads (can run at same time)
- L1 cache: 32kB data + 32kB instruction
- L2 cache: 512kB
- Memory bus width: 64bit (serial)
- VMX (Altivec) instruction set support
- Full IEEE-754 compliant
- 8 SPE (Synergistic Processing Element)
- 3.2Ghz
- 64 bit, Big Endian
- 1 SPE disabled to improve chip yield (see: Unlocking the 8th SPE)
- 1 SPE dedicated for hypervisor security
- 256kB local store per SPE
- 128 registers per SPE
- Dual Issue (Each SPE can execute 2 instructions per clock)
- IEEE-754 compliant in double precision (single precision round-towards-zero instead of round-towards-even)
There is a lot of info about CELL/BE on the Cell Programming IBM page.
Serial Numbers @ SKU
The Cell was introduced at 90nm. Later, PS3 model numbers starting with CECHG uses the 65nm version, while the PS3 Slim (CECH-20xx) used the 45nm version (See SKU Models and table below).
A sampling of the serial numbers by model number.
| PS3 Model | Mobo serial | CELL Serial | Die Tech | Total Die Size | Width x Length | SPU size | PPE Size | Remark |
|---|---|---|---|---|---|---|---|---|
| CECHA | - | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | edepot ps3secrets |
| CECHA | 1-871-868-12 | CXD2964AGB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHA | 1-871-868-22 | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHA | 1-871-868-32 | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHB | - | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | edepot ps3secrets |
| CECHB | 1-871-868-22 | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHB | 1-871-868-32 | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHC | - | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | edepot ps3secrets |
| CECHD | - | unreleased | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | - |
| CECHE | - | CXD29?? | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | edepot ps3secrets |
| CECHE | 1-873-513-21 | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHE | 1-873-513-21 | CXD2964AGB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHE | 1-873-513-31 | CXD2964AGB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHE | 1-873-513-31 | CXD2964GB | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | reballing.es |
| CECHF | - | unreleased | 90nm | 235.48mm² | 19.17mm x 12.29mm | 14.76mm² | 28.86mm² | - |
| CECHG | - | CXD2981AGB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | edepot ps3secrets |
| CECHH | - | CXD2981GB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | edepot ps3secrets |
| CECHH | 1-875-938-11 | CXD2981AGB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | reballing.es |
| CECHH | 1-875-938-31 | CXD2981AGB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | reballing.es |
| CECHI | - | unreleased | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | - |
| CECHJ | - | CXD2981GB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | edepot ps3secrets |
| CECHK | - | CXD2989AGB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | edepot ps3secrets |
| CECHL | - | CXD2990AGB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | edepot ps3secrets |
| CECHL | 1-878-196-31 | CXD2990GB | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | reballing.es |
| CECHM | - | -? | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | -? |
| CECHN | - | unreleased | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | - |
| CECHO | - | unreleased | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | - |
| CECHP | - | -? | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | -? |
| CECHQ | - | CXD299? | 65nm | 174.61mm² | 15.59mm x 11.20mm | 11.08mm² | 19.60mm² | edepot ps3secrets |
| CECH-20xx | - | CXD2992AGB | 45nm | 115.46mm² | 12.75mm x 9.06mm | 6.47mm² | 11.32mm² | edepot ps3secrets |
| CECH-2001B | 1-880-055-31 | CXD2992AGB | 45nm | 115.46mm² | 12.75mm x 9.06mm | 6.47mm² | 11.32mm² | reballing.es |
| CECH-21xx | - | CXD2992AGB | 45nm | 115.46mm² | 12.75mm x 9.06mm | 6.47mm² | 11.32mm² | edepot ps3secrets |
| CECH-2101A | 1-881-945-11 | CXD2992AGB | 45nm | 115.46mm² | 12.75mm x 9.06mm | 6.47mm² | 11.32mm² | reballing.es |
| CECH-25xx | - | CXD2992GB | 45nm | 115.46mm² | 12.75mm x 9.06mm | 6.47mm² | 11.32mm² | edepot ps3secrets |
| CECH-30xx | - | -? | 45nm? | 115.46mm²? | 12.75mm x 9.06mm? | 6.47mm²? | 11.32mm²? | -? |
Note: pad/pinouts are generally not available, please add them :)