@emosun
Why would you want to use Windows Vista/7 for AGP GPU testing, when 95% of them can't even run DirectX 10 games with proper speed ?
I tested Quake III Arena and Doom 3 along side 3DMark 99-2006, but I guess you missed that part...
Well, here's table with results for two other games.
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Pentium 4 (in Pink) can't handle Quake III Arena or Doom 3 with anything faster than X1950 Pro/7900 GS (it's simply too slow).
Also, in both games ATI drivers have higher CPU load (at least for fastest DX10 cabable models), that's why (with PGA 478), X1950 Pro can win against (in theory) newer and more powerful cousins.
@Tetrium : I own both 4670 and 3850 in IceQ variants (4670 model has 1GB VRAM 1600MHz DDR3) 😀
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EDIT :
@meljor
PCI-e version of 4670 has 2000MHz (effective) RAM speed, and even my IceQ has "only" 1600MHz.
On top of that, GPU Core clock is 20MHz higher on PCI-e edition - at least from TPU test (my card has Core Clock of 750MHz.
For HD 3850 situation is inverted. My card is a overclocked version of PCI-e one (670MHz vs. 715MHz on my, and 1600MHz [effective] VRAM clock vs. 1818MHz on my IceQ).
I didn't underclock my 3850 to stock, because getting 4670 AGP with 1GB DDR3 memory isn't easy, and most 4670s for AGP has DDR2 memory instead of (G)DDR3 (which makes them A LOT worse for gaming).