I need a new video card....?

I need a new video card because everytime im playing this game called GunZ: The Duel it lags and its really annoying... So can anyone help me out on which video card i should get? Thanks. Heres the specs to my desktop pc.

AMD Athlon™ 64 3500+ processor with AMD 64 Technology

(2.2GHz, 2000MHz system bus, 512KB L2 cache)

Operating System : Genuine Microsoft® Windows® XP Home SP2

Chipset : NVIDIA® GeForce® 6100

Memory : 512MB DDR (1 × 512MB), 400MHz (PC3200)

Expandable to 4GB

Hard Drive : 160GB (7200rpm, 2MB cache)

Optical Drive : 16x multiformat dual-layer DVD±RW

(Up to 8.5GB with dual-layer media)

Write max: 16x DVD±R, 6x DVD-RW, 8x DVD+RW, 4x DVD+R DL, 40x CD-R, 24x CD-RW

Read max: 16x DVD-ROM, 40x CD-ROM

Media Reader : 9-in-1 media card reader (Memory Stick®, Memory Stick Pro®, MultiMediaCard™, Secure Digital™, CompactFlash®, MicroDrive, SmartMedia, xD, USB 2.0)

Video : NVIDIA® GeForce® 6100 GPU

Up to 128MB of shared video memory

PCI Express (PCIe x16) slot available

Sound : 6-channel (5.1) high-definition audio

Network : 10/100Mbps integrated Ethernet LAN (RJ-45 port)

Modem : 56K ITU V.92-ready fax/modem (RJ-11 port)

Peripherals : Premium multimedia keyboard, 2-button wheel mouse, amplified stereo speakers

Ports/Other : 5 USB 2.0 (1 in digital media manager, 4 in back), VGA external connector, parallel port, 2 PS/2 ports (keyboard and mouse), 5 audio ports (2 in front, 3 in back)

Dimensions : 14.25" H x 7.25" W x 16" D

Weight : 22.5 lbs|||Your problem is that you only have 512MB ram and you use a shared video that sucks up some of that. Vista runs much better with 2GB of ram, but, at the very least, bump it up to 1GB. Since you have a PCIe slot, pick up a good card with a minimum of 256MB, preferably with 512MB on it. You will see a big difference.|||You need more ram. Thats the main reason of your lag issues. 2GB is most common these days. Sadly I dont see your motherboard listed but find out if it is compatible with PC-6400 800MHz Ram instead of ur current 400MHz ones.



If you also want a new GPU for your games, take a look at 9600GT. Make sure your PSU (power supply) can handle it. If you wanna go even lower, minimum hit the range of the 8 series of GeForce, such as 8800GTS 640mb and above.|||You can get a good video card in the 100 dollar range since you have a pci express slot. You need to add 1GB to 1.5GB system ram if you want to play games. 1GB will help a lot and can be bought at Newegg.com for about 32 dollars. Put it in yourself, its very easy.