Originally Posted by xBruce88x
Hopefully that "pci device" isn't the pci-e to agp bridge chip. not sure where you'd get software for that, except the manufacturers card drivers. I think that's why its "agp8x @ pci" but i'm not completely sure... here's the files from HIS, you have to click the little blue arrows to download.
hmm... interesting... the 3850 has twice the texture power of the 4670 and better memory bandwidth, yet the 4670 has about twice the pixel fillrate power. tough choice.
What's missing from the nforce3 drivers is a proper GART driver. Without it the AGP port functions as a PCI port.
Based on my experience (I own both) the 4670 runs neck and neck with the 3850 at stock settings. The sweet spot for both is 1680x1050; at that res their performance is practically the same. Above that the 4670 gets a slight edge because of its 1GB of VRAM and at lower resolutions the 3850 256bit bus shows its force... if only there was a 1GB 3850
In games with high lots of textures (Oblivion) the 4670 wins even at lower resolutions too.
Still, the overcloking headroom is higher with the 3850 (mine runs 824/1197 0.974v and I've seen reports of 837Mhz). With the 4670 I only managed a 30Mhz overclock. I think that the voltage regulation circuitry is what makes that possible on the 3850 as it was a high end part at its time.