I own a Toshiba Laptop with the following details:
- AMD Turion X2 64 Mobile Technology TL-60 2.00 GHz Processor
- 3 GB of RAM
- 32-bit Windows Vista
Does this machine meet the requirements to run 64-bit Ubuntu?
Yes - as statet on wikipedia and the AMD Website it is indeed an 64bit processor and capable of running 64bit Ubuntu.
Your PC could run a 64bit version of Ubuntu however for your system I'd personally stick with the 32bit version... It'll run quicker.
My understanding is that Ubuntu takes up less resources that what Windows does, so I would say give it a go. If it does not work out the worst that will happen is that you will have to clean it all down and start again. From the sound of the previous posts though, it sounds like you will be OK.
Most of my posts these days seem to have the letters (vm) in them, but I feel this could be a good option for you here. Download both iso's and then run them in a vm. This way you might be able to get a feel of it, before jumping all the way in with a 64 bit os.