The graphics drivers on linux consist of several parts. They have a part that lives in the kernel and a part that is in userspace. Intel has only one kernel module (I believe) and it's called i915 for all cards.
The userspace stuff for e.g. X has the i915 and i965 names:
Code:$ grep i965 /var/log/Xorg.0.log [ 5236.213] (II) intel(0): [DRI2] DRI driver: i965 [ 5236.228] (II) AIGLX: Loaded and initialized i965