I have found that the theoretical increase would be 14% from 2.5 to 3.0ghz but again this doesn't tell me if it is a noticable difference and worth spending £50 on the new cpu.
Ok thanks for the reply. It's been a bit of a project so I've already updated ram to 8gb @800mhz, new 2gb graphics card and 650w PSU. Windows 10 running pretty smooth. Next will be the SSD but think will stop there if not much point in upgrading the CPU. It makes you think tho how much the difference is between the two CPUs as used the Q8300 is £7 and the QX9650 £50.You may notice a slight increase with different things.
You might notice a more of an increase of you update the RAM Max is 8 GB
The other thing that you may want to think about is getting a newer updated system with a secure operating system. Windows 7 is no longer secure and supported by Microsoft.
Information - Windows 7 is EOL
As of January 14, 2020, Windows 7 is no longer supported by Microsoft for home users. PCHF advises that you upgrade to Windows 10 to remain secure and up-to-date with the latest features and OS. To learn more about Windows 7's End-Of-Life, feel free to read this article from Microsoft.pchelpforum.net
To be honest save your money and purchase a new and or build you own system.
Cheers. Yeah may do at some point and have some components already to get me started. (Hence the move from a 250w to 650w PSU! )
