Xbox 360 Revisions
Xenon
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 80 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
- Still 90 nm CPU and 80 nm GPU
Falcon
All Xbox 360 Premium machines and Arcade machines manufactured August 2007 introduced the new 65 nm CPU accompanied with a new cooler and still 80 nm GPU with the Zephyr cooler. The motherboard is based on Zephyr and this revisions requires fewer components for the new 65 nm CPU resulting in lower costs. 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
- ATI 80 nm GPU
- Bigger and enhanced CPU cooler
- Fewer voltage regulators, capacitors and inductors
Jasper
Jaster will be released in late 2008 to introduce the 65 nm GPU and reduce the cost and power usage further.
Opus
This is an intermediate motherboard with 65 nm CPU and 90 nm GPU, new coolers, but no HDMI. It will be used in Xenon chassis for repaired and Red Ring of Dead affected machines.
Valhalla
A future version that will have both the CPU and GPU on a single die.
