90nm GPU still
so will still overheat. You just have 40GB more DRM locked out content when you get the replacement back.
Interestingly, seems Microsoft is refurbishing old Xenon (pre-falcon) units, with new Opus motherboards, and has over a million of them stockpiled for replacements. I hope you don't get one of them, as it's got the orignal 120db DVD drives, and worse still no HDMI port..