There is diffrent coverage in both maps the description is pretty much identicall apart from the bit i have highlited but see the pictures below.
They are both 2309.8 MB (According to tomtom.com)
Western and Central Europe
[color="red"]2GB[/color]Detailed map seamlessly covering Europe now extended to include Greece, Turkey and Russia[color="red"] and improved with additional forests, lakes and built up areas[/color]. Includes IQ Routes™ data for faster routing.
Users of devices with limited memory may not be able to install the complete map on their device, but will be able to choose between and switch map zones using TomTom HOME.
Map coverage statistics:
* countries fully covered (99.9%): Andorra, Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Italy, Liechtenstein, Lithuania, Luxembourg, Hungary, Malta, Monaco, Norway, Poland, Portugal, San Marino, Slovakia, Slovenia, Spain, Sweden, Switzerland, the Republic of Ireland, the Netherlands, the United Kingdom, the Canary Islands and the Vatican City.
* countries partially covered: Turkey (63%), Romania (13%), Russia (35%), Bulgaria (54%), Latvia (63%), Croatia (60%, including coverage extension on Adriatic coast) and Ukraine (38%)
* roads covered (kms): over 11 million
* connector roads: other Central European Countries are covered allowing you seamless navigation throughout the entire region.
Western and Central Europe
Detailed map seamlessly covering Europe now extended to include Greece, Turkey and Russia. With IQ Routes™ data for faster routing.
Users of devices with limited memory may not be able to install the complete map on their device, but will be able to choose between and switch map zones using TomTom HOME.
Map coverage statistics:
* countries fully covered (99.9%): Andorra, Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Italy, Liechtenstein, Lithuania, Luxembourg, Hungary, Malta, Monaco, Norway, Poland, Portugal, San Marino, Slovakia, Slovenia, Spain, Sweden, Switzerland, the Republic of Ireland, the Netherlands, the United Kingdom, the Canary Islands and the Vatican City.
* countries partially covered: Turkey (63%), Romania (13%), Russia (35%), Bulgaria (54%), Latvia (63%), Croatia (60%, including coverage extension on Adriatic coast) and Ukraine (38%)
* roads covered (kms): over 11 million
* connector roads: other Central European Countries are covered allowing you seamless navigation throughout the entire region