[Ti] XBench 800 MHZ DVI compared with 1.6 GHZ 64MB VRAM

Thu Feb 3 20:57:40 PST 2005

Am I reading this right?  So, the newer PowerBook has better graphics and disk
performance, but actually benchmarks SLOWER on the CPU and memory tests?  While
I understand that benchmarks aren't a definitive test of performance, this is
pretty unexpected...

On Thu, Feb 03, 2005 at 10:28:55PM -0600, Robert Nicholson wrote:
> Here's a comparison of the new 1.67 GHZ G4 Powerbook against my 800 MHZ 
> G4 Titanium Powerbook.
> 
> Results	78.63	
> 	System Info		
> 		Xbench Version		1.1.3
> 		System Version		10.3.7 (7S215)
> 		Physical RAM		512 MB
> 		Model		PowerBook3,4
> 		Processor		PowerPC G4 @ 800 MHz
> 			Version		7455 (Apollo) v2.1
> 			L1 Cache		32K (instruction), 32K (data)
> 			L2 Cache		256K @ 800 MHz
> 			L3 Cache		1024K @ 201 MHz
> 			Bus Frequency		134 MHz
> 		Video Card		ATY,RageM7
> 		Drive Type		IC25N080ATMR04-0
> 	CPU Test	92.01	
> 		GCD Loop	88.42	3.45 Mops/sec
> 		Floating Point Basic	90.36	326.79 Mflop/sec
> 		AltiVec Basic	97.23	2.82 Gflop/sec
> 		vecLib FFT	97.95	1.52 Gflop/sec
> 		Floating Point Library	87.18	3.49 Mops/sec
> 	Thread Test	65.26	
> 		Computation	46.85	632.45 Kops/sec, 4 threads
> 		Lock Contention	107.50	1.35 Mlocks/sec, 4 threads
> 	Memory Test	103.93	
> 		System	108.94	
> 			Allocate	483.23	315.21 Kalloc/sec
> 			Fill	121.35	965.92 MB/sec
> 			Copy	58.04	290.22 MB/sec
> 		Stream	99.36	
> 			Copy	91.66	670.00 MB/sec [altivec]
> 			Scale	93.86	692.68 MB/sec [altivec]
> 			Add	103.63	663.26 MB/sec [altivec]
> 			Triad	110.57	675.59 MB/sec [altivec]
> 	Quartz Graphics Test	116.61	
> 		Line	99.33	2.53 Klines/sec [50% alpha]
> 		Rectangle	112.64	7.92 Krects/sec [50% alpha]
> 		Circle	113.93	2.63 Kcircles/sec [50% alpha]
> 		Bezier	103.52	1.12 Kbeziers/sec [50% alpha]
> 		Text	182.01	2.97 Kchars/sec
> 	OpenGL Graphics Test	77.43	
> 		Spinning Squares	77.43	54.19 frames/sec
> 	User Interface Test	145.08	
> 		Elements	145.08	46.66 refresh/sec
> 	Disk Test	40.28	
> 		Sequential	41.51	
> 			Uncached Write	38.72	16.14 MB/sec [4K blocks]
> 			Uncached Write	34.63	14.18 MB/sec [256K blocks]
> 			Uncached Read	85.12	13.47 MB/sec [4K blocks]
> 			Uncached Read	33.44	13.51 MB/sec [256K blocks]
> 		Random	39.11	
> 			Uncached Write	32.58	0.49 MB/sec [4K blocks]
> 			Uncached Write	43.49	9.81 MB/sec [256K blocks]
> 			Uncached Read	41.65	0.27 MB/sec [4K blocks]
> 			Uncached Read	40.69	8.37 MB/sec [256K blocks]
> 
> Results	92.26	
> 	System Info		
> 		Xbench Version		1.1.3
> 		System Version		10.3.7 (7T62)
> 		Physical RAM		1024 MB
> 		Model		PowerBook5,6
> 		Processor		PowerPC G4 @ 1.67 GHz
> 			L1 Cache		32K (instruction), 32K (data)
> 			L2 Cache		512K @ 1.67 GHz
> 			Bus Frequency		167 MHz
> 		Video Card		ATY,RV360M11
> 		Drive Type		Hitachi HTS541080G9AT00
> 	CPU Test	82.57	
> 		GCD Loop	77.03	3.01 Mops/sec
> 		Floating Point Basic	68.91	249.20 Mflop/sec
> 		AltiVec Basic	79.94	2.32 Gflop/sec
> 		vecLib FFT	79.47	1.23 Gflop/sec
> 		Floating Point Library	125.49	5.02 Mops/sec
> 	Thread Test	56.48	
> 		Computation	38.90	525.21 Kops/sec, 4 threads
> 		Lock Contention	103.03	1.29 Mlocks/sec, 4 threads
> 	Memory Test	95.09	
> 		System	90.02	
> 			Allocate	459.45	299.70 Kalloc/sec
> 			Fill	79.14	629.97 MB/sec
> 			Copy	54.01	270.06 MB/sec
> 		Stream	100.76	
> 			Copy	98.10	717.10 MB/sec [altivec]
> 			Scale	98.91	729.98 MB/sec [altivec]
> 			Add	102.96	658.94 MB/sec [altivec]
> 			Triad	103.30	631.15 MB/sec [altivec]
> 	Quartz Graphics Test	139.53	
> 		Line	118.81	3.02 Klines/sec [50% alpha]
> 		Rectangle	107.18	7.54 Krects/sec [50% alpha]
> 		Circle	122.73	2.83 Kcircles/sec [50% alpha]
> 		Bezier	160.06	1.74 Kbeziers/sec [50% alpha]
> 		Text	270.82	4.41 Kchars/sec
> 	OpenGL Graphics Test	118.17	
> 		Spinning Squares	118.17	82.70 frames/sec
> 	User Interface Test	181.36	
> 		Elements	181.36	58.34 refresh/sec
> 	Disk Test	69.46	
> 		Sequential	74.75	
> 			Uncached Write	84.67	35.29 MB/sec [4K blocks]
> 			Uncached Write	60.64	24.83 MB/sec [256K blocks]
> 			Uncached Read	89.66	14.19 MB/sec [4K blocks]
> 			Uncached Read	71.14	28.74 MB/sec [256K blocks]
> 		Random	64.88	
> 			Uncached Write	56.23	0.84 MB/sec [4K blocks]
> 			Uncached Write	64.17	14.47 MB/sec [256K blocks]
> 			Uncached Read	68.50	0.45 MB/sec [4K blocks]
> 			Uncached Read	73.05	15.03 MB/sec [256K blocks]
> 
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-- 
Paul H. Yoshimune
paul at yoshimune.com
http://www.yoshimune.com/