Do current t400 come with "switchable" graphics?

[cngriffin]

I just spec'd out several t400 laptops at lenovo site and it is unclear whether the t400 with ATI card also has the Intel x4500hd like it has in the past.  In other words, the base t400 comes with the integrated x4500hd graphics.  The other models come with the ATI Mobility Radeon 3470 and says nothing about switchable graphics.

So, the question is, do the current crop of t400 laptops that come with the ATI Mobility Radeon 3470 have the "switchable" option and include the intel x4500hd?

Thanks.

[lead_org Microsoft MVP Contributor]

as long as you option for the ATI, then the X4500 is also included in the Intel Northbridge chip. ATI is a discrete GPU and the X4500 is an integrated gpu in the Northbridge. 

[cngriffin]

Thanks!