Need help for first build PSU/GPU

[Alleox]

So I'm building my first PC. Wanted it to be a budget build but went a little overboard. I already have most of the parts except a GPU. I'm looking to get a used GTX 980 for around £150 but I'm worried because the PSU that I bought is only a 450w bronze plus. Should I buy a gtx 980 or get a less demanding GPU?

 

PC specs found here:

https://uk.pcpartpicker.com/list/Jv33pb

 

 

 

[iRileyx]

That cx450m will be fine for a 980.

[Alleox]

Just now, RKRiley said:

That cx450m will be fine for a 980.

Thanks!

[Herman Mcpootis]

http://www.anandtech.com/show/8526/nvidia-geforce-gtx-980-review/21 300-310w under load with an overclocked 4960x, you'll be fine with the cx450m even if you overclock.