Slow Video Card Bench

[mtotho]

Im having a growing suspicion that my video card isnt living up to its full potention all leopard.. especially after seeing benches from cards that i know are not even half as good as it.

 

Here is my XBENCH REsults:

 

Results	174.62	
System Info		
	Xbench Version		1.3
	System Version		10.5.1 (9B18)
	Physical RAM		3456 MB
	Model		Mac Pro
	Drive Type		WDC WD740ADFD-00NLR5 WDC WD740ADFD-00NLR5
CPU Test	173.57	
	GCD Loop	354.48	18.69 Mops/sec
	Floating Point Basic	171.52	4.08 Gflop/sec
	vecLib FFT	139.54	4.60 Gflop/sec
	Floating Point Library	138.36	24.09 Mops/sec
Thread Test	272.03	
	Computation	270.39	5.48 Mops/sec, 4 threads
	Lock Contention	273.69	11.77 Mlocks/sec, 4 threads
Memory Test	222.44	
	System	252.04	
		Allocate	344.42	1.26 Malloc/sec
		Fill	209.03	10163.51 MB/sec
		Copy	237.23	4899.87 MB/sec
	Stream	199.07	
		Copy	184.94	3819.95 MB/sec
		Scale	192.41	3975.17 MB/sec
		Add	210.10	4475.52 MB/sec
		Triad	211.42	4522.77 MB/sec
Quartz Graphics Test	251.59	
	Line	199.82	13.30 Klines/sec [50% alpha]
	Rectangle	264.84	79.07 Krects/sec [50% alpha]
	Circle	214.10	17.45 Kcircles/sec [50% alpha]
	Bezier	211.43	5.33 Kbeziers/sec [50% alpha]
	Text	590.72	36.95 Kchars/sec
OpenGL Graphics Test	147.99	
	Spinning Squares	147.99	187.73 frames/sec
User Interface Test	364.76	
	Elements	364.76	1.67 Krefresh/sec
Disk Test	78.86	
	Sequential	155.60	
		Uncached Write	159.88	98.16 MB/sec [4K blocks]
		Uncached Write	159.89	90.47 MB/sec [256K blocks]
		Uncached Read	141.05	41.28 MB/sec [4K blocks]
		Uncached Read	163.74	82.30 MB/sec [256K blocks]
	Random	52.81	
		Uncached Write	19.04	2.02 MB/sec [4K blocks]
		Uncached Write	129.20	41.36 MB/sec [256K blocks]
		Uncached Read	111.53	0.79 MB/sec [4K blocks]
		Uncached Read	153.55	28.49 MB/sec [256K blocks]

 

My CPU: Intel q6600 (pre g0 steppings.. forced to stay below 3.2ghz) 3ghz (333x9)

Ram: 4x1gb Corsair XMS DDR2-800 Clocked at 800mhz

Video: as stated above Nvidia(EVGA) 8800gts 640mb 'gts skateboard'

WD 10k RPM HD

GA-DS3L P35 MOBO

 

For Video.. i used Punk92's installer.. i have full resolution options... everything runs pretty smooth.

 

Any suggestions?