Can I change my nvidia geforce 605 1gb to nvidia geforce 630

[Janpe]

So I bought a computer almost year ago and it was sufficient and powerful enough at the moment but now the gpu isn't powerful enough and i want to upgrade it. My computer is Fujitsu Esprimo PH320 E85+. Specs I have are
Processor Intel Pentium G2030, 3,0 GHz
Nvidia Geforce 605 1GB
Ram 4GB
Windows 8.1
I know that the power supply probably isn't powerful enough but I want someones who knows more to verify this to me. Is there a way for me to find easily what power supply I have or do I have to open the computer and find the power supply from there. And if the power supply isn't good enough is it easy to replace to a better one. I'm planning on also upgrading the Ram to 8GB. And so I wanted to ask if someone had some suggestions for what Ram should I buy. Thanks in advance to everyone even reading this

 

[tical2399]

So I bought a computer almost year ago and it was sufficient and powerful enough at the moment but now the gpu isn't powerful enough and i want to upgrade it. My computer is Fujitsu Esprimo PH320 E85+. Specs I have are
Processor Intel Pentium G2030, 3,0 GHz
Nvidia Geforce 605 1GB
Ram 4GB
Windows 8.1
I know that the power supply probably isn't powerful enough but I want someones who knows more to verify this to me. Is there a way for me to find easily what power supply I have or do I have to open the computer and find the power supply from there. And if the power supply isn't good enough is it easy to replace to a better one. I'm planning on also upgrading the Ram to 8GB. And so I wanted to ask if someone had some suggestions for what Ram should I buy. Thanks in advance to everyone even reading this

To let you know if you should upgrade you should let us know what the intended use of the machine will be

 

[thekyle64]

You can but it won't perform much better

 

[tical2399]

You can but it won't perform much better

We don't know that. We don't know what his planned usage is. You're assuming he's playing games.

 

[Janpe]

Yes I'm planning on using it on gaming. Currently I have to play on minimum to good quality settings or the game is choppy. And I don't buy new games just because I don't want to spend 60€ on a game that doesn't run properly. For example I can't run Witcher 2 even on minimum settings without it being a slideshow.
And the other reason why I want to upgrade my GPU is because the 605 only supports only up to 1360 x 768 resolution. But the gaming is my main focus of getting better gpu
If the 630 doesn't improve my computer that much do you guys have any suggestion what I should get instead while staying around the 60-80€ or 70-95$. It's possible for me to pay even more but I would prefer not to

 

[thekyle64]

You should get a gtx 750 because of the low power consumption,
You don't want to spend less than 100 usd on a gaming GPU because anything that cost less sucks. (unless you can find a good used GPU)

 

[Janpe]

You should get a gtx 750 because of the low power consumption,
You don't want to spend less than 100 usd on a gaming GPU because anything that cost less sucks. (unless you can find a good used GPU)

Thank you guys for helping