AquaMark 2.3	Source: Massive

AquaMark is another DirectX 8 benchmark. Using vertex shaders, any card that is DirectX8 compatible will not just have a huge speed boost, the image will also look better. Default test has 24 MB worth of textures.

AquaMark 1024x768
	Video Card	FPS	Ranking
1.	ATi Radeon 9800 Pro	105.5
2.	ATi Radeon 9700 Pro	99.3
3.	Gigabyte Radeon 9600 Pro	64
4.	MSI FX5900U-VTD256 Ultra	113.2
5.	Albatron GeForceFX 5600 Ultra	75.2
6.	MSI G4Ti4600-VT2D8X	84.8
7.	Asus Radeon A9600XT	74.1
8.	Asus Radeon A9600XT (553/341)	81

It seems AquaMark like the nVIDIA based card here.

AquaMark 1280x1024
	Video Card	FPS	Ranking
1.	ATi Radeon 9800 Pro	81.1
2.	ATi Radeon 9700 Pro	71.2
3.	Gigabyte Radeon 9600 Pro	41.2
4.	MSI FX5900U-VTD256 Ultra	90.2
5.	Albatron GeForceFX 5600 Ultra	49.9
6.	MSI G4Ti4600-VT2D8X	57.3
7.	Asus Radeon A9600XT	47.9
8.	Asus Radeon A9600XT (553/341)	53.7

AquaMark 1600x1200
	Video Card	FPS	Ranking
1.	ATi Radeon 9800 Pro	57.5
2.	ATi Radeon 9700 Pro	50.2
3.	Gigabyte Radeon 9600 Pro	28.8
4.	MSI FX5900U-VTD256 Ultra	67.5
5.	Albatron GeForceFX 5600 Ultra	35.6
6.	MSI G4Ti4600-VT2D8X	41.4
7.	Asus Radeon A9600XT	33.6
8.	Asus Radeon A9600XT (553/341)	37.7

As the resolution goes higher the lower end cards start to fall back quickly due to less memory bandwidth.