New graphics card!

Solution
Yes, the ATI 7770 is the best option in comparison with the mentioned cards.
Also upgrading to a 64 bit OS means that it will be able to use the maximum amount of RAM, as opposed to the 3 GB limit in 32 bit OS.

The Sapphire Radeon 7770 OC is the best option, because it is factory overclocked to 1150 Mhz, where as the Gigabyte is at 1100 Mhz.
How much differnce will 50 Mhz make? well you wont even notice it but still the higher the numbers the better.
The 7770 is 28nm manufactured so won't get heated up quickly, however the Sapphire version seems to have a better cooling system. Plus i really do like Sapphire's customer support as it is one of the best.

Dhampire01

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Dec 9, 2012
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Best gpu for your system is a 7770.
NOTE:Upgrade your windows 7 to 64 bit as with 32 bit operating system the PC can only use the 3gb ram
 

djabhi003

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Jun 25, 2011
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Yes, the ATI 7770 is the best option in comparison with the mentioned cards.
Also upgrading to a 64 bit OS means that it will be able to use the maximum amount of RAM, as opposed to the 3 GB limit in 32 bit OS.

The Sapphire Radeon 7770 OC is the best option, because it is factory overclocked to 1150 Mhz, where as the Gigabyte is at 1100 Mhz.
How much differnce will 50 Mhz make? well you wont even notice it but still the higher the numbers the better.
The 7770 is 28nm manufactured so won't get heated up quickly, however the Sapphire version seems to have a better cooling system. Plus i really do like Sapphire's customer support as it is one of the best.
 
Solution

djabhi003

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Jun 25, 2011
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By white port i am assuming you mean DVI which is this:
dvi.jpg


And blue is VGA:
VGA_port.jpg


If you're monitor uses the blue VGA port, then simply get a DVI to VGA converter cable. Its pretty much inexpensive.
The 7770 uses a PCI-E x16 slot and is compatible with both PCI-E 2.0 and 3.0, so it will run well on your board. I coudn't find the mobo info from your dxdiag, however your current GPU is on the same x16 slot so yeah the 7770 will work.