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Document:	Alpha Graphics Performance
Order Number:	XX-0E395-7E
Revision:
Pages:	6
Original Filename:	http://sup.xenya.si/sup/info/digital/Alpha/Alpha%20Graphics%20Performance.pdf

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Graphics Performance Flash

Digital AlphaStation 255 Family
Digital UNIX
This document presents the industry-standard graphics benchmark ratings for the Digital AlphaStation™
255 family members running Digital UNIX®.
Table 1 - Digital AlphaStation 255/233
Graphics Adapter
Benchmarks and Metrics

PowerStorm
3D10

PowerStorm
3D30

PowerStorm
4D20

ZLXp-L1

ZLXp-L2

x11perf
Xmark93
10 Pixel Lines (millions/sec)

5.78
0.50

17.78
3.71

15.31
3.68

7.28
1.02

8.77
1.33

PLB
PLBwire93
PLBsurf93

nr
nr

82.6
32.3

88.6
67.6

66.2
91.0

67.6
105.9

nr
nr
nr

2.68
125
56

2.67
125
55

1.10
206
98

1.34
296
145

Geometry
3D Vectors (millions/sec)
3D Triangles (thousands/sec)
3D Polygons (thousands/sec)
nr = not reported
Table 2 - Digital AlphaStation 255/300

Graphics Adapter
Benchmarks and Metrics

PowerStorm
3D30

PowerStorm
4D20

ZLXp-L1

ZLXp-L2

x11perf
Xmark93
10 Pixel Lines (millions/sec)

19.94
3.83

17.13
3.87

7.80
1.02

9.49
1.34

PLB
PLBwire93
PLBsurf93

96.2
44.5

101.8
76.1

70.3
98.5

72.8
113.0

2.95
142
65

2.97
146
65

1.10
206
98

1.34
297
145

Geometry
3D Vectors (millions/sec)
3D Triangles (thousands/sec)
3D Polygons (thousands/sec)
nr = not reported

Graphics Performance Flash - Digital AlphaStation 255 Family - Digital UNIX
Digital evaluated the performance of the AlphaStation family using industry-standard benchmarks. These
benchmarks allow comparisons across vendors’ systems. Performance characterization is just one “data
point” to be used in conjunction with other purchase criteria such as features, service, and price.
Brief descriptions of the benchmarks:
•

•

x11perf is a public domain benchmark which has been contributed to the X Consortium. It is widely
used for characterizing the graphics performance of X11 Window systems.
• Xmark93 is a metric developed by the X Performance Characterization (XPC) Subcommittee
of the Graphics Performance Characterization Committee (GPC). It is the normalized
weighted geometric mean of tests from x11perf V1.3.
• 10-pixel lines is a frequently requested individual result from x11perf.
PLB is a benchmark developed by the Picture Level Benchmark Subcommittee of the GPC. PLB
measures the performance of displaying a set of pictures described by files in the Benchmark
Interchange Format (BIF). The BIF standard files are divided into two suites, 3D Wireframe and 3D
Surface. (The 2D Wireframe suite was recently retired by the PLB Subcommittee.)
• PLBwire93 is the normalized geometric mean of the 3D Wireframe suite.
• PLBsurf93 is the normalized geometric mean of the 3D Surface suite.
Geometry benchmarks measure the speed a graphics system can render the same primitive repeatedly.
Although these benchmarks are commonly requested, Digital has found the GPC benchmarks and
actual application performance to be far superior indicators of graphics performance.
• 3D Vectors, 10 pixel polylines, arbitrary orientation, projected, not depth buffered, clip
checked (none clipped), flat shaded, not lighted
• 3D Triangles, 50 pixel triangles in triangle strips, arbitrary orientation, projected, depth
buffered, clip checked (none clipped), gouraud shaded, lighted (1 ambient and 1 directional,
ambient+diffuse+specular)
• 3D Polygons, 100 pixel independent quadrilaterals, projected, depth buffered, clip checked
(none clipped), gouraud shaded, lighted (1 ambient and 1 directional,
ambient+diffuse+specular)

For more information on the GPC benchmarks, see The GPC Quarterly, published by the Standard
Performance Evaluation Corporation, see http://www.specbench.org/gpc/.
For more information on Digital’s AlphaStation family, contact your local Digital sales representative.
Please send questions and comments about the information presented in this Graphics Performance Flash
to Internet address: csgperf@zko.dec.com.
Digital believes the information in this publication is accurate as of its publication date; such information
is subject to change without notice. Digital is not responsible for inadvertent errors.
Digital conducts its business in a manner that conserves the environment and protects the safety and
health of its employees, customers, and the community.

Digital, the DIGITAL logo, the AlphaGeneration logo, and AlphaStation are trademarks of Digital Equipment Corporation.
UNIX is a registered trademark in the United States and other countries, exclusively licensed through X/Open Company Ltd.
IBM is a registered trademark of International Business Machines Corporation.
Copyright © 1996 Digital Equipment Corporation. All rights reserved. Printed in the U.S.A.

Digital Equipment Corporation

March 21, 1996

Graphics Performance Flash

Digital AlphaStation 500 Family
Digital UNIX
This document presents the industry-standard graphics benchmark ratings for the Digital AlphaStation™
500 family members running Digital UNIX®.
Table 1 - Digital AlphaStation 500/266
Graphics Adapter
Benchmarks and Metrics

PowerStorm
3D30

PowerStorm
4D20

ZLXp-L1

ZLXp-L2

x11perf
Xmark93
10 Pixel Lines (millions/sec)

29.38
3.67

24.78
3.68

9.62
1.03

11.88
1.41

PLB
PLBwire93
PLBsurf93

134.7
77.4

146.6
114.7

84.1
113.7

98.0
170.4

3.45
242
107

3.45
233
102

1.12
207
99

1.42
302
146

Geometry
3D Vectors (millions/sec)
3D Triangles (thousands/sec)
3D Polygons (thousands/sec)
nr = not reported
Table 2 - Digital AlphaStation 500/333

Graphics Adapter
Benchmarks and Metrics

PowerStorm
3D30

PowerStorm
4D20

ZLXp-L1

ZLXp-L2

x11perf
Xmark93
10 Pixel Lines (millions/sec)

32.43
3.69

27.26
3.69

10.01
1.03

12.32
1.41

PLB
PLBwire93
PLBsurf93

155.9
85.7

171.0
129.2

85.6
114.4

98.2
183.9

3.43
258
116

3.43
252
114

1.12
207
99

1.42
303
147

Geometry
3D Vectors (millions/sec)
3D Triangles (thousands/sec)
3D Polygons (thousands/sec)
nr = not reported

Graphics Performance Flash - Digital AlphaStation 500 Family - Digital UNIX
Digital evaluated the performance of the AlphaStation family using industry-standard benchmarks. These
benchmarks allow comparisons across vendors’ systems. Performance characterization is just one “data
point” to be used in conjunction with other purchase criteria such as features, service, and price.
Brief descriptions of the benchmarks:
•

•

Digital Equipment Corporation

March 21, 1996

Graphics Performance Flash

Digital AlphaStation 600 Family
Digital UNIX
This document presents the industry-standard graphics benchmark ratings for the Digital AlphaStation™
600 family members running Digital UNIX®.
Table 1 - Digital AlphaStation 600 5/266
Graphics Adapter
Benchmarks and Metrics

PowerStorm
3D30

PowerStorm
4D20

ZLXp-L1

ZLXp-L2

x11perf
Xmark93
10 Pixel Lines (millions/sec)

29.38
3.67

24.78
3.68

9.62
1.03

11.88
1.41

PLB
PLBwire93
PLBsurf93

134.7
77.4

146.6
114.7

84.1
113.7

98.0
170.4

3.45
242
107

3.45
233
102

1.12
207
99

1.42
302
146

Geometry
3D Vectors (millions/sec)
3D Triangles (thousands/sec)
3D Polygons (thousands/sec)
nr = not reported
Table 2 - Digital AlphaStation 600 5/333

Graphics Adapter
Benchmarks and Metrics

PowerStorm
3D30

PowerStorm
4D20

ZLXp-L1

ZLXp-L2

x11perf
Xmark93
10 Pixel Lines (millions/sec)

33.07
3.74

28.04
3.74

10.42
1.03

12.25
1.41

PLB
PLBwire93
PLBsurf93

168.2
101.7

185.6
134.3

86.5
115.5

102.8
186.4

3.45
256
117

3.45
257
115

1.12
207
99

1.42
303
147

Geometry
3D Vectors (millions/sec)
3D Triangles (thousands/sec)
3D Polygons (thousands/sec)
nr = not reported

Graphics Performance Flash - Digital AlphaStation 600 Family - Digital UNIX
Digital evaluated the performance of the AlphaStation family using industry-standard benchmarks. These
benchmarks allow comparisons across vendors’ systems. Performance characterization is just one “data
point” to be used in conjunction with other purchase criteria such as features, service, and price.
Brief descriptions of the benchmarks:
•

•

Digital Equipment Corporation

March 21, 1996