Stepping
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Processor silicon revisions are denoted by their stepping. Known steppings used on the Xbox 360 are listed below.
XCPU
Waternoose
- X02046
- A00 - DD1
- B00 - Production DD2
- B01 - Production DD2.1
- X806416
- A00 - Production DD3
Loki
- A01 - Production
GPU
Y1
- A11
- A11N1
- A11N2
- A21
- A21N1
- A21N2
- A22
- A31
- A32 - Production
Y2
- B11
- B11L
- B12
- B12L
- B13L - Production
- B14L - Production
Y3
- C11
- C12
- C21
- C22 - Production
- C23 - Production
eDRAM
Edifis
- ES1 (A00)
- ES2 (B00)
- ES3 (C00) - Production
Styx
- FS11
- FS21 - 80nm Production
- GS21 - 65nm Production
XCGPU
Valhalla
- A01
- A02 - Production
Winchester CGPU
- A03 - Production
Southbridge
XSB
- E2
- G0 - Production
- R0 - Production
PSB
- A0 - Production
ANA
- A00
- B00
- B01
- B02
- B03 - Production
- C00 - Cancelled
HANA
- A00
- B00 - Production