Question about ATI mobility chips on a Dell laptop

SneakyStuff

Diamond Member
Jan 13, 2004
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In the Dell Inspiron E1505 configuration, the upgrade options from the Intel grapgics solution are:

X1300 mobility, 128MB "hyper memory" add$63
X1400 mobility, 256MB "hyper memory" add$103

Do any of you know the amount of dedicated memory each of those have, and in all honesty, are they both very similar in terms of performance? I'm just trying to avoid spending all sorts of excess money. Any input would be greatly appreciated thank you!