I recently replaced my 32-bit 12.04-LTS by 64-bit 13.04, but the 64-bit version runs VERY slow on my current computer (compared with the speed when I run 32-bit). Here is the info of the hardware:
- CPU: AMD E-350 1.6GHz (announced in Nov 2010)
- Graphics: Radeon HD 6310
- RAM: 6GB 1066-MHZ
When I first bought this computer, it run Windows 7 64-bit very well: basically just like a desktop only when I run huge applications. My guess is that though my computer should be able to run 64-bit version Linux, but the hardware was too old and actually reduced the performance, just like if you run Windows 8 on an old Pentium 4 platform.
Plus, for the first several times I installed this 64-bit version, after my computer started, it shows that "cannot find operating system", which is very weird. Does anyone know why that happened?