Upgrading - Need help

[Rabidzz]

Hey, I'm looking to update my graphics card, but am unsure on what to get.

I'm looking to spend around/up to the £200 mark, give or take a bit, and am also willing to buy a PSU if it would be needed.

Here is my computer specs at the minute:

Operating System: Windows 7 Home Premium 64-bit
Processor: AMD Phenom(tm) 9650 Quad-Core Processor (4 CPUs), ~2.3GHz
Memory: 4096MB RAM DDR2
Graphics: ATI Radeon HD 4300/4500
Monitor Resolution: 1280x1024
PSU: 450watt
No special cooling.

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Now I'm looking to upgrade the graphics card within the next week, with intention of getting a new screen (24") around December to Dual screen.

I'm not looking at something to majorly overclock, just something that will play most games in full high settings. I was looking at the GTX 470, but I'm not sure if some of the performance would be wasted on the PC specs.

Anyway, any help is much appreciated.

 

[Rabidzz]

I couldn't find a make on the PSU itself, but it was the stock one in an Advent PC, with the model ISO-450pp.

 

[Rabidzz]

Thanks for the advice

So the Corsair CX 500W ATX and 460 sounds good to me. What would be the best 460 to get, as they are all within my price range.

 

[Rabidzz]

Just to double check, would the PSU have enough power connections for the 460 GTX and the rest of the computers components (as I don't have a clue)

 

[Rabidzz]

Alright. Thanks for the help guys!