Best graphics card for my Dell Inspiron 620 (300W PSU)

[jokukyo]

What would be the best graphics card for PC gaming without having to upgrade my PSU. I dont see any extra power cables running out of the PSU to connect to a video card either I'm running a 24inch monitor if that helps any.

Processor

Intel® Core™ i3-2120 processor(3MB Cache, 3.30GHz)

Operating System

Genuine Windows® 7 Home Premium, 64Bit, English

Memory

4GB Dual Channel DDR3 SDRAM at 1333Mhz

Hard Drive

1000GB4 SATA hard drive (7200RPM)

Optical Drive

BluRay Combo SATA

Video Card

(Integrated) Intel® HD Graphics 2000


Wireless

Dell Wireless 1502 (802.11n) WLAN mini-Card

Sound Card

Integrated 5.1 high definition audio

Ports

Internal I/O
(1) PCIe x16 Full Height Card, (3) PCIe x1, (4) SATA, (4) Internal USB 2.0

Front Ports
(2) USB 2.0, 8:1 Media Card Reader, Microphone/headphone

Rear Ports
(6) USB 2.0, (1) VGA, (1) HDMI, standard audio jacks for 5.1 Audio Support, (1)10/100/1000

Power

300 Watt Power Supply (Mini Tower)

 

[AbdullahG]

For starters, you have a great CPU.
A decent GPU should make that PC a somewhat of a mid-range gaming PC.
What resolution do you play at (I assume 1900x1080)?
The best card available that can be run with a 300W PSU is the HD 6670:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814102935

A few games run with a similar setup:

GTAIV- http://www.youtube.com/watch?v=Fc9Q1K4xAPE&feature=related

BF3- http://www.youtube.com/watch?v=MuZFOrnZkrE

MW3- http://www.youtube.com/watch?v=R8yPJC0MCJY&feature=plcp&context=C35b96f7UDOEgsToPDskIUB4x2V_E3rpjdxPU1nWOC

Th BF3 and MW3 videos are by the same person, and it's played at a lower resolution.
You'll still have playable frames, just not maxed out with AA (@ 1080p, AA is not needed IMO).

 

[jokukyo]

Yeah I'd be running 1900x1200 if it permits me to, if not a lower resolution. Also been doing a lot of research and it seems it does come down to the HD6670

Thanks