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Graphics controllers specifications

Product Name

» PowerStorm 3D30

» PowerStorm 4D20

» PowerStorm 4D51T

» ELSA GLoria Synergy
Key Feature

2D and 8-bit 3D wireframe performance

Support for UNIX, Windows NT, and OpenVMS Alpha

Offers multi-head functionality up to 4 heads

8-bit graphics accelerator with support for virtual 24-bit images

Stereo support

Good 2D/3D wireframe performance in 12-bit or 24-bit DB mode

Full 24-bit Z-buffer and 4 DB overlay planes

Support for UNIX, Windows NT, and OpenVMS Alpha

Offers multihead functionality up to 3 heads

Support for higher quality resolution at 1600 x 1200

Stereo support

High-performance chipset design

Mid Range 3D graphics with OpenGL acceleration for DIGITAL UNIX and Windows NT

Advanced 3D shading and texture mapping including Tri-Linear MIP mapping

Based on 3DlabsPERMEDIA 2 chipset

Supports up to 3 displays (running 2D only)

Operating System Windows NT Alpha
UNIX
OpenVMS 		Windows NT Alpha
UNIX
OpenVMS 		Windows NT Alpha
UNIX 		Windows NT Alpha
Windows NT Intel
UNIX
Platforms DIGITAL Personal Workstation
- a-series
- au-series
DIGITAL Ultimate Workstations
- a2 and au2
XP1000 (UNIX only)		 DIGITAL Personal Workstation
- a-series
- au-series
DIGITAL Ultimate Workstations
- a2 and au2		 DIGITAL Personal Workstation
- a-series
- au-series
DIGITAL Personal Workstations
- 266i, 300i, and 333i
DIGITAL Ulitmate Workstations
- a2 and au2
XP1000 		DIGITAL Personal Workstation
- a-series
(Enhanced)
DIGITAL Personal Workstation
- au-series
(Enhanced)
XP1000
3D Support OpenGL 1.1 OpenGL 1.1 OpenGL 1.1 OpenGL 1.1 (Windows NT only)
Bus Interface PCI PCI PCI PCI
Slots 1 1 1 1
Video Memory 2 MB 16 MB 16 MB 8 MB
HW Texture Mapping No No Yes Yes
Highest Texture Mode n/a n/a Trilinear Bilinear
Std. Texture Memory/Max Texture Memory n/a n/a 16MB Shared with frame buffer
Max Resolution

Max Refresh		 1280x1024
75 Hz		 1600x1200
75 Hz		 1280x1024
75 Hz		 1600x1200
85 Hz
Stereo Yes, Full Screen Yes, Full Screen Yes, OpenGL No
Video Layout
Color Planes 8 bit 12-bit DB recommended 24 bit DB 16 bit DB
Z-buffer n/a 24 bit 24 bit 16 bit DB
Overlay Planes n/a 4 bit 4 bit DB n/a
Stencil Planes n/a n/a 6 bit (8 at lower resolution) n/a
Alpha Planes n/a n/a 8 at lower resolution n/a
Window ID Planes n/a 2 LUTs 4 DB n/a
Fast Clear Planes n/a n/a 1 bit DB n/a
Total bits/pixel 8 48 100 64
Hardware Performance
3D Vectors/sec 3.45M 2.43M 2.7 M 1 M
XMark 39.84 25.37 (12 bit)   n/a
25 Pixel Triangles/sec n/a n/a 1.2 M 1 M
50 Pixel Triangles/sec 256K 257K 700 K  
Trilinear texture fill rate n/a n/a 22 MP n/a

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