Interesting thread. This is from a 9500GT card purchased about 2 years ago. Using 270.26 beta driver.
Code:
GtkPerf 0.40 - Starting testing: Tue Mar 29 00:20:52 2011
GtkEntry - time: 0.02
GtkComboBox - time: 0.62
GtkComboBoxEntry - time: 0.31
GtkSpinButton - time: 0.11
GtkProgressBar - time: 0.10
GtkToggleButton - time: 0.13
GtkCheckButton - time: 0.06
GtkRadioButton - time: 0.10
GtkTextView - Add text - time: 0.59
GtkTextView - Scroll - time: 0.09
GtkDrawingArea - Lines - time: 0.32
GtkDrawingArea - Circles - time: 0.31
GtkDrawingArea - Text - time: 0.21
GtkDrawingArea - Pixbufs - time: 0.05
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Total time: 3.03