Do all E545 laptop sub-models have dual-graphics?

Looking to purchase one soon, and will be used for occasional gaming.
I see the same sub-model listed on one site as having the HD 8570M along w/ the iGPU from the APU, but others do not. This is very confusing. To add to the confusion, the main product page for the E545 on lenovo's site shows it has it, but when you customize a unit, it doesn't.
If all E545s do NOT have dual-graphics, can I please have a list(US, CA, and international models) of all sub-model codes that do?
Thank you

You won't see the 6459 in the current Jan 2009 version because Lenovo only keeps the latest models on that reference source.
However, I found my answer at the ThinkPad Forum here:
http://www.thinkpads.com/forum/viewtopic.php?f=29&t=60786
It appears that there is indeed 256mb on the GPU in question and there are some typographical errors on the Product Info Pages.
Message Edited by eecon on 01-16-2009 12:14 AM
Two (I used to have Five) - T61p 15.4" WS T9300 2.5Ghz units, August 08/08 Builds with FX570M Nvidia Graphics; ... One W520 i7-2860QM w/2000M Nvidia Graphics (most recent acquisition and stupidly fast); .... One - T42 4:3 15" Flexview 1.8GHz with ATI Graphics (still perfect for traveling); ... Two - T500 15.4" units both with ATI HD3650 Graphics.

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Do all E545 laptop sub-models have dual-graphics?

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