Best ATI graphics card for old CPU and modern video streams

[jeffshead]

I built my arcade machine back in 2003. Geez I'm getting old 

What is the best all-around ATI AGP graphics card for MAME that can also play modern Youtube videos?

I'm looking for something in the sub $50 range that does not run too hot and can run on a low wattage power supply.

My specs:
MB: Asus P4S800
CPU: Intel P4 3.2 Northwood
RAM: PC3200 1.5 GB DDR
OS: Windows XP 32-bit
Original graphics card: ATI 8500 128MB AGP
Power supply: No specs on label. Probably sub 350 watts
Monitor: 21" CRT monitor (VGA) made for PC's

I know my box is severely outdated. I'm just looking for a quick fix for now. The ATI 8500 (presuming it's the culprit) chocks on all YouTube videos; even 240p. It used to play videos just fine but it's probably been 2-4 years since I've tried to stream video on it. Has streaming changed over the years so the problem could be that my old P4 CPU isn't able to handle the new technology?

I've I came across the following models while Googling but I wasn't able to ascertain which is best for my setup and if they can play modern YouTube videos or if they will even work with my limited resources:

HD3850
HD4670
HD4650
HD3450
HD4350
HD2600
X800
X850
X1950
X1900

I may take the leap and replace the PC and redo everything at a later date but for now, I just want to throw a graphics card at it unless someone confirms the issue is CPU related. I'd hate to waste money on an old video card if it won't help.

[newmanfamilyvlogs]

Looks like its possible with a few caveats:

Skip to around the 11 minute mark for some YouTube examples and discussion.

[jeffshead]

Looks like its possible with a few caveats...

Thanks!

I bought an old HIS ATI HD3850 AGP graphics card at a local PC shop but I get one long and three short beeps immediately at power on. That indicates no VGA detected. I created a DOS boot disc and ran ATIFlash but it does not see the card. Actually, ATIFlash doesn't see any card even when I swap in a working ATI 8500. The HD3850 is in excellent cosmetic condition and the cooling fan runs. I don't know if the card is truly bad or if it can be "unbricked" if a previous owner screwed it up while attempting a ROM flash on the card.

I don't have another PC with an AGP slot to test the card. Does anyone know if the HD3850 should work on the Asus P4S800?

[jeffshead]

I ended up exchanging the dead HD3850 card for a HD3650. It works just fine and I can now play 720p video streams but when I try to play any MAME game or any other emulated game such as NES, the size and colors are wrong. I did not edit any config files. I simply replaced the ATI 8500 card with the HD3650, uninstalled the old drivers and installed the one for the HD3650.

It's been so long since I've messed with setting up my arcade machine, I don't remember ANY of the process.

Can someone please point me in the right direction? I tried changing the color depth to 16 & 32 bit and resolution on the Windows XP desktop but it made no difference. I installed the video card drivers via the Device Manager so I did not install ATI Catalyst. Like I said, I built it in 2003 and it uses MAMEWAH v0.97 as the front-end and of course MAME, all of the other emulators and the roms were the latest available in 2003 and nothing has been updated since then.

[Mr. Peabody]

What version of MAME? Show us images of what you think incorrect.