Worth upgrading or reinstall windows?

[DigitalCoke]

My computer is running slow. I could use a reinstall of windows but i am considering an upgrade to z97 and M.2 ssd and i7-4790k (11,241 benchmark). is it worth the $6-800 its going to cost?

Here is my current performance test

[David (PassMark)]

The i7-3770 is a good CPU. I don't think you'll notice the upgrade to the 4790.

You might notice a M.2. drive like the SM951, but it depends on your usage.

I would be tempted to do the Windows re-install and hold off on the hardware upgrade for another 6 months.

[DigitalCoke]

The i7-3770 is a good CPU. I don't think you'll notice the upgrade to the 4790.

You might notice a M.2. drive like the SM951, but it depends on your usage.

I would be tempted to do the Windows re-install and hold off on the hardware upgrade for another 6 months.

I am excited to use the M.2 for the first time. I have another computer i built with a ASRock Z97 Extreme6. I didnt have as good of specs but seamed to run windows 8.1 much smoother. Is this possible the motherboard is better built for windows 8.1 vs my current ASRock Z77?

[David (PassMark)]

No, there is nothing special in the motherboards that would make them better for Win8.
A motherboard that runs Win7 well will also run Win8 well, assuming all the device drivers are available.

[DigitalCoke]

Thanks

Thanks for the help. I ordered it all anyway. Nothing like new hardware to modivate a fresh windows install. Your opinion was helpful, turns out a computer down the line was really under performing so i'll pass along the parts and try and think of a good idea to use the old slow computer for a server of some kind.

[i7Baby]

High CPU temps can slow your PC down eg Dusty case inside or poor overclock.