Hi, I'm using PowerPC G5 & vers.10.3.9.
spesc are below:

Hardware Overview:

Machine Model: Power Mac G5
CPU Type: PowerPC 970 (2.2)
Number Of CPUs: 2
CPU Speed: 1.8 GHz
L2 Cache (per CPU): 512 KB
Memory: 4 GB
Bus Speed: 900 MHz
Boot ROM Version: 5.1.2f2
Serial Number: YM3475XCQES


System Software Overview:

System Version: Mac OS X 10.3.9 (7W98)
Kernel Version: Darwin 7.9.0
Boot Volume: Macintosh HD
Computer Name: user’s Computer
User Name: user (user)


Can I upgrade to newer osx?
how much will cost?
thanks