Graphic Cards Upgrade

Try looking for a Radeon 7850 or higher. For that price, they should offer better value, plus you might get some free games with it. You might get a higher likelihood of being in stock, as well. Based on American prices, you shouldn't have to pay all that much of a difference and should get a better card. Read this to learn about how good a card is. I find it to be accurate.

AMD and Nvidia are pretty much the same these days, so just go with the best value. What's your budget?

The Nvidia series doesn't go up in order of numbers but rather:
4XX, 5XX, 6XX, 7XX = The technology level, higher is better DirectX, OpenGL, and higher resolution support, etc.

Then the numbers following:
x50 or less = Designed for applications only, not really meant for gaming purposes.
x60 = Average gaming purposes.
x60Ti = Ti is slightly more pixel and texture processing.
x70 = Quality gaming purposes.
x80 = Hardcore gaming purposes.
x90 = Almost two x80 glued together in SLI with a better fan but well overpriced for what you get. For people with more money than sense.

The 5XX range has ended as they only run 2 series at a time and 7XX has started. If you want 1920x1024 resolution or less, good graphics for gaming, then I suggest looking for a second hand GTX580 for cheap on trade me, ebay, etc. This would be better performance and probably around the same or less price than a brand new GTX660!

Else the GTX6XX series will be dropping in price due to the arrival of the GTX7XX series. There was some awesome specials for them on Computer Lounge NZ just the other day (but selling extremely fast).

Check ebay for international sellers. If you don't mind used cards then you should be able to find good deals. Pretty much anything above a gtx 460/gtx 550 ti/gtx 650 will offer more than double the performance.

Get a GTX660 Ti if you can. I have a GTX560 Ti Superclocked and am starting to see slight frame rate loss in newer games. Play it safe and save up a bit more, 5XX line is also discontinued as the 7XX series is out so it would be hard to find new, you may only find refurbs.

It tends to matter what your *** resolution is. Anything less than 1920X1200 would make 660ti wasteful. I guess you don't, so a 560ti would be suitable. A 550ti if you want to save just a bit more.

what is your cpu? power supply wattage? monitor's resolution?

depending on your powersupply a nVIDIA GeForce GTX 660 should be sufficient for gaming at 1980 x 1080 and offers the most bang for the buck

In the sub-£200 price range you're better off going for a RadeonHD of some sort (probably a 7850 2GB at that price range). They are £140 here.

In short, this is how you should find the right card:

1) Decide on your budget.

2) Find what graphics cards are available for that price.

3) Look up benchmarks for the type of games you play (e.g. Skyrim, BF3, etc) that compare those cards.

4) Buy the one that performs the best.

ALWAYS FOLLOW THAT FORMULA. There's no point saying "Oh, nVidia are better" or "Oh, I always go with AMD" because then you're just wasting money for no logical reason.

That's a cool avatar, just wanted to say that.