NVIDIA GEForce 430-64MB Video Card

Hello,
I am buying a desktop with the following specs:

Athlon 64 x2 Dualcore Processor 4400-2.30 GHz
300 GB Hard Drive
4 MB Ram

It is a Dell Inspiron 531S. The listing on ebay says it has a "NVIDIA GEForce 430-64MB Video Card". The only specs I can find for this are the GEForce 430 with 1GB memory (Or is this the GT430?). Does this listing indicate that the graphics card has 64MB graphics memory? Is there a difference between the GT430 and 430? I am new to graphics cards and very confused. Thanks for your help, I can try to answer any questions to clarify my post.