Originally Posted by SJUAMMF

The T61p 15.4 inch comes standard with WSXGA+ resolution upgradeable to WUXGA. Graphics is a NVidia FX 570M.

The T61 15.4 inch comes standard with WXGA resolution upgradeable to WSXGA+ with a lesser graphics chip.

If you are thinking to go for a WSXGA+ resolution, the T61p will have faster graphics than T61.

http://www.mekong.net/tech/vidres.htm

I have been using 15 inch 1600x1200 UXGA on my home PC (A31p) in the past few years while using 14 inch 1400x1050 SXGA+ on my work PC (T41/T60). My wife had been using 15 inch SXGA+ (A31).

UXGA is very good when you are a multi-tasker with many windows open. It is harder on the eyes for text, not much difference for graphics. The SXGA+ especially in 15 inch size is a great size if you don't usually have many windows open. I need SXGA+ on my 14 inch office computer due to large spreadsheets.

Originally Posted by msb0b

I just got a T60 with 15.4" WSXGA+ display. This is as high resolution as I am willing to go on this size. Any higher, my eyes will need to be uncomfortably close to the display to make out the words. On the other hand, I love the large desktop space I get.

To get an idea on how small the default text size will be, you can look at the screen's pixel density, usually in dots per inch (dpi) unit. This measurement is usually not readily available on manufacturers' page, but can be easily calculated from the resolution and size information available. There is even a handy calculator page: http://www.raydreams.com/prog/dpi.aspx

I have used all sorts of displays from 80dpi (15.4" XGA) to 200dpi (7.2" WXGA on Libretto), and found my comfort zone to be around 120dpi. For what it's worth, Windows' OS default is 96dpi.

Lenovo offers these 15" displays on T60 series:
15.4" WXGA 97dpi
15.4" WSXGA+ 130dpi
15.4" WUXGA 150dpi