Help me to choose a graphics card (Nvidia only)?

you don't really need to spend Rs.10000-12000 if you are only planning to play games on 1440x900 resolution.

HD 6850 is a good card but it is pretty overkill for your resolution.at that resolution,even Radeon HD 5770 can max out everything and it just cost around Rs.7000.if you are planning to upgrade your monitor in the future then going with HD 6850 will be a good idea but if you want to stick with current resolution then HD 5770 is sufficient.you need a power supply upgrade anyway since HD 6850 requires minimum 500 watts of power supply.

http://www.tomshardware.com/reviews/radeon-hd-6870...

your core 2 Duo clocked at 2.4 GHZ is a little problem as most of today's games minimum requires decent dual core which clocked around 3.0GHZ but it should not be a big deal for your resolution.add 2 more GB of RAM if possible.if you want to go with only Nvidia cards then consider Geforce GTS 450.it is slightly slower than HD 5770 but still can handle games on 1440x900 and HIGH settings.

You see, you have a Power Supply of 450 Watts only, most graphics cards at a range like Rs.10000, require atleast 550 Watts of Power Supply.

Forget others that say change your motherboard, CPU blah blah :P

Because, 85% of the gaming performance comes from the Graphics card. Since your resolution is just 1440 x 900, get a Sapphire HD 6850, Costs Rs.10500, can run any game at max settings, i have a HD 6850, i stay in india, believe me, there isn't a game that this cant run, i use 1680 x 1050 and yet, it runs very smoothly, in the resolution you specified, it should run even better.

And, if you have a tight budget and don't wanna go over Rs.10000, then get an Nvidia GeForce, GTX 460, costs around Rs.9500, the HD 6850 beats it in every aspect.

Hope this Helps.

get an intel i5 or i7 they are probably similar price and much better if not, look at the i3. tbh just because you might get the best graphics card around doesnt mean you will play games at max detail you need everything else to go with it, you cant build a building 100 stories high without the basic foundations. if you get where im going with that..

youll need a lot more

for a start youll need a better processor like i said

you will probably need a much better motherboard they may not have anything really to compare anf you may think they are all the same but they are really not a good mobo is everything

thirdly, to play games at max quality you will need a bloody lot of RAM, i mean at least 8gb of it, 2gb will be nowhere near enough and kingstone RAM is also pretty sh*te, so i recommend getting at least 8gb RAM that is also by a better brand, kingstone is just budget crap and wont handle anything especially considering Win7 Home Premium uses about 1GB of RAM alone and the higher the version the more it uses.

your HDD is ok although by the looks of everything else you have probably chosen a budget one, the cheapest one, with the lowest revs, so i recommend upgrading to one that has a much higher MHz

considering your other parts i have a bad feeling that youve picked the cheapest power supply for that wattage, bad move my friend, pick a good brand one because ive heard a couple of times that the cheap ones often begin to smoke and even start a fire, you really dont want that now do you

hopefully this has taught you that its not all about graphics cards that gives you good gameplay you need everything else to go with it

its like a band everyone notices the main singer (in this case the graphics card) but no one notices the instrument players (the CPU and stuff like that) and a good singer would be useless without a decent backing band

the two video enjoying cards would purely be precious as a low-fee option in the journey that your motherboard has xfire or sli applications in any different case they gained't hook up with one yet another, seem up and notice in the journey that your motherboard got here with an sli bridge and if no longer then choose for the 8500, in anycase they'd be with regard to the comparable

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