Re: TomTom 910 help with navcore
As the 910 has a CPU of 400 MHz and 64 Mb of internal ram you would be best suited to a version 9 navcore, there are several to choose from and its a matter of preference.
A 9025 is one choice and with the 9 navcore you would use an IQ map which supports all the features your 910 has.
My preference is a 9004, I have run this for the last year without fault and didn't see any need to change.
TomTom Go730 + Bootloader 5.5229 + Navcore SE 9485 + Latest UK Map
Garmin Zumo 660LM + Latest Firmware and Maps
Windows Ultimate 7 64bit + OCZ-SSD + i7 2600K @ 4.6 GHz + 2GB Radeon HD 6970 + 8GB DDR3 1600MHz