Hi,

Your computer is shipped with a power supply of 350W. The card 6450 1 GB GDDR3 PCIe requires 400 Watt or greater power supply to work.  You can check some of the available options on Dell.com from the link: http://dell.to/11L49HW 

Please reply for further clarifications.

Thanks for the reply RDUNNILL! :emotion-21:

An Anandtech test puts, total system draw (not just the GPU draw) of the 6450 is 178 watts.

There's no way a 6450 card needs a 400-watt power supply.

You can use a standard 20 PIN NON PFC power supply if you HACK A HOLE in the case.

An EARTHWATTS PFC Supply will NOT WORK However.

Startech makes a 400W power supply that does not require case hacking.

StarTech ATXPW400DELL Dell PC Power Supply - 400-Watt, ATXItem#: S262-7146   Model#: ATXPW400DELL

Radeon HD 5450 512 19 Watts  DDR3

Radeon HD 6450 1GB 31 Watts DDR3

6450 has 160 stream processors when

compared to the 5450 that only has 80

6570 and 6670 have 480 stream processors.

Depends on the CLOCK and the Video RAM 512  1GB  2GB

NONE OF THE CARDS USE MORE THAN 75 WATTS aka 12v  6.25 AMPS

-I've herd that the video cards on dell.com are overpriced and outdated.. so I'm hesitating on getting on of the ones suggested here accessories.us.dell.com/.../category.aspx

:emotion-42: I'm confused and dont understand...Let me rephrase the question...

Whats a good video card with HDMI output that will work good to watch movies and DVDs on my Dimension 8400?

-I want to replace my video card in my Dimension 8400 with one that has an HDMI output.
-I want the HDMI output so I can be able to connect my computer to my TV and be able to watch movies/DVD's on my TV.
-Motherboard Specs http://www.discountelectronics.com/p...oduct_model=58
-I don't want to spend very much money unless I really have to...

The Sapphire 6570 is an excellent choice for for video playback, including DVD and Blu-ray. It boasts UVD 3.0 as well as an onboard HD audio device, Protected Audio Path and HDMI 1.3 for eight-channel sound, and some support for video post-processing. The 6450 will do this as well, apart from the post-processing.

The video cards in the link you provided are obsolete, and do not support HDMI 1.3 nor Protected Audio Path (which are necessary for full-definition eight-channel audio).

The ASUS SILENT Radeon HD5450 works fine, without modification, with stock power supply.

Thank you rdunnill! This is my final pick!

Thanks to everyone else that tried to help!

Thank you rdunnill! This is my final pick! Thanks to everyone else that tried to help!

You're welcome and congrats on a good choice -- you'll be happy with it.

Anandtech had this to say about the 6570: "... 6570 is the perfect HTPC card. The set of post processing options provided is very broad compared to what is provided by NVIDIA. All post processing options are enabled irrespective of ESVP, even for 60 fps videos. It has the highest HQV benchmark score of any HTPC-oriented GPU that we have evaluated so far. We didn't encounter any bitrate limitations with video playback. The pesky 23.976 Hz refresh rate may be a hit or miss depending on your setup, but it is way better than Intel's implementation."

http://www.anandtech.com/show/4380/discrete-htpc-gpus-shootout/16

Hi, I have the same power supply wattage and I also own a small computer but mine is the optiplex 360 DT. I'm about to buy this card, do you think it will work on my pc?

If you have a PCIe-x16 slot, it should work. The 6570 has low power consumption and this model has a low-profile bracket bundled.