Xbox 360 Revisions

Xenon

IBM 90 nm CPU (glue is only on Zephyr)

ATI 90 nm GPU and embedded DRAM chip

The original Xbox 360 configuration used in the initial Premium and Core machines released in the end of November 2005. These are also know as the RRoD (Red Ring of Death) machines because the GPU chip warps away from the motherboard because of excessive heat.

• IBM 90 nm CPU
• ATI 90 nm GPU and on-chip DRAM
• Small GPU cooler
• Standard CPU cooler

Zephyr

Zephyr was the first revision with HDMI connector and fixed the RRoD problem cause by the inadequate GPU cooler. It was introduced with the Xbox 360 Elite in May 2007.

• Updated motherboard layout
• HDMI connector
• New 120 GB hard drive option
• Extended GPU cooler

Falcon

IBM 65 nm CPU

All Xbox 360 Premium machines and Arcade machines manufactured August 2007 introduced the new 65 nm CPU accompanied with a new cooler. The motherboard is based on Zephyr and the lower CPU power requirements results in fewer components necessary for power management. Elite machines will eventually be updated when the initial stock is sold out. Xbox 360 packages with LOT number 0734 or higher will most likely be Falcon machines.

• IBM 65 nm CPU
• Bigger and enhanced CPU cooler
• No more X-Clamps to fasten the cooling elements
• Fewer voltage regulators, capacitors and inductors

Jasper

Jaster will be released in late 2008 and the GPU and the embedded DRAM memory chip will be updated to 65 nm to reduce cost and heat/power usage further.

• ATI 65 nm GPU with on-chip 65 nm DRAM memory

References

• Inside the Xbox 360 Elite
• Inside Launch Microsoft Xbox 360
• New Falcon Motherboard
• Second Xbox 360 codename Zephyr
• How to see 65 nm
• Falcon Xbox Pictures