What is the best gaming graphics card for my pc. Specs: 2.20GHs pentium dual core, 2gb ram, win7 32bit.

YEESH, 2GB of RAM? Most games won't be able to run on that-the minimum is 4GB and even there you will have a bit of a problem. At those specs I guess you could get a NVIDIA GeForce GTX 730 (or even 720), but it's best to upgrade the RAM a bit. 2 GB isn't really gaming grade. Is it possible to tell me your CPU model to know whether it runs on ddr2 or ddr3 RAM? Go into the Device Manager, open "Processors" and tell me the exact number and model.
 

That's a ton better of an idea. I'm running a 7-year old computer with an Intel Celeron 420 clocked at 1.6 GHz, 2GB of RAM, and no video card and I'm getting a new computer soon with an AMD r9 280x, intel core i5 4690k, and 8GB of RAM. Those are pretty good specs for gaming.

With 600-700 dollars you can get a MUCH better machine than this.
 
Good 500$ build:
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor ($69.99 @ Newegg)
Motherboard: MSI Z97-G55 SLI ATX LGA1150 Motherboard ($108.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 4GB (1 x 4GB) DDR3-1600 Memory ($40.50 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($54.99)
Video Card: EVGA GeForce GTX 750 Ti 2GB FTW ACX Video Card ($144.50 @ Newegg)
Case: Cooler Master HAF 912 ATX Mid Tower Case ($49.99)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($43.98)
Total: $492.94
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-17 12:27 EDT-0400
The case comes from Amazon, BTW. The PSU and HDD have a custom price because I'm buying somewhere else.
 
Budget Intel build:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor ($112.09 @ NCIX US)
Motherboard: ASRock B85 Pro4 ATX LGA1150 Motherboard ($69.99 @ Amazon)
Memory: Kingston 8GB (2 x 4GB) DDR3-1600 Memory ($84.74 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($55.98 @ OutletPC)
Video Card: EVGA GeForce GTX 750 Ti 2GB FTW ACX Video Card ($134.50 @ Newegg)
Case: Rosewill Line Glow ATX Mid Tower Case ($32.50 @ Newegg)
Power Supply: Antec 450W ATX Power Supply ($37.00 @ Amazon)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($13.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Total: $630.77
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-17 15:47 EDT-0400

Budget AMD build:

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Athlon X4 760K 3.8GHz Quad-Core Processor ($83.69 @ Amazon)
Motherboard: ASRock FM2A55M-VG3+ Micro ATX FM2+ Motherboard ($45.38 @ Newegg)
Memory: Kingston 8GB (2 x 4GB) DDR3-1600 Memory ($84.74 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($55.98 @ OutletPC)
Video Card: Gigabyte Radeon R7 260X 1GB Video Card ($99.99 @ Newegg)
Case: Rosewill Line Glow ATX Mid Tower Case ($32.50 @ Newegg)
Power Supply: XFX TS 550W 80+ Bronze Certified ATX Power Supply ($69.99 @ Newegg)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($13.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Total: $576.24
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-17 15:51 EDT-0400
 
Solution


Great build but I would just change the memory to 2 sticks of 8GB. It'll be much better. 4 GB is struggling today in gaming. 2 cores on a CPU doesn't seem to cut it because some games are nearing 4 or even 5 cores of use, but then again this build is very future-proof so upgrading to something like an i5 5670k (when it releases)is no prob...
I like it. If it were possible you could go the distance and get a better case and a modular power supply, but I'm just being luxurious. ^_^