ATI Radeon X800, 2600HD or 3850 AGP?

I have an old machine I run select games on, such as World of Warcraft, Dead Space, Warhammer Online, and I'm planning on playing Mirror's Edge for PC once it's out. I have a single-core Athlon 64 3400 (running at 2.41 GHz). I had been running an X800 for the longest time, but I replaced it with a 2600HD last year for the updated shader model 3.0. I recently put the X800 back in, because the performance in WoW always appeared to be better before the 2600. My FPS is much better with the speed of the X800, but I've considered ridding of both cards for a Radeon 3850 AGP. Would this card be faster than both I currently own? Is ATI planning a 4000 series in AGP?

DR

yes this card would be faster then both you own.

BUT

it will be starved of a CPU that can actually feed this card.

and no the agp 3850 will go down and the worlds fastest AGP card

ATi says 450W for best performance.....(originally it don't need that much) Its possible to run with 430W PSU without any problem...

The AGP slot can't supply enough voltage for the HD3850 core, the card uses an eight-pin PCI-E power connector, but the standard 6-pin connector will supply enough voltage...manufacturers supply 4-pin Molex to 6-pin PCI adaptor in the box...

As for HD3850, All the features of the equivalent PCI-E card are present; 320 stream processors, 512-bit internal memory ring, support for shader model 4.0 and DirectX 10.1. Also the GPU features ATI's PowerPlay, technology that reduces power consumption depending on what the card is doing...

This is all really helpful... believe me, I appreciate it. Money isn't really an issue. I'm willing to spend up to $800 to build a new machine if need be. If I knew I could build a new PC for cheap and get 40FPS in Dalaran in WoW, I'd be ALL over it

Probably it would be best to replace your PSU if you intend to follow the advice and component list of IH8U, they do degrade over time and older PSUs` do n`t always have the protection of more modern units.