Archives
 
 
 
  Special
 
 
 
  About Us
 
 
 

Newsletter
Free E-mail Newsletter from BYTE.com

 
    
           
Visit the home page Browse the four-year online archive Download platform-neutral CPU/FPU benchmarks Find information for advertisers, authors, vendors, subscribers Request free information on products written about or advertised in BYTE Submit a press release, or scan recent announcements Talk with BYTE's staff and readers about products and technologies

ArticlesThe Best Graphics Accelerators For EISA-Bus Systems


February 1994 / BYTE Lab Product Report / The Best Graphics Accelerators For EISA-Bus Systems

After testing six graphics cards designed for EISA, we were pleasantly surprised to find that EISA video speeds can keep up with VL-Bus speeds. We still believe that VL-Bus is the best choice for graphics performance, but some EISA systems, notably Compaq's M series, lack a local bus. For those systems, cards such as the Compaq QVision 1280/E are competitive with the best of the breed for any bus attachment.

Users of EISA systems can also consider ISA-based video accelerators, and we found that these boards usually work flawlessly in an EISA system. Accordingly, we considered the entire sampling of EISA and ISA cards for all awards in this section. Nevertheless, our tests show that while they are compatible with EISA systems, IS A boards are slower and less flexible than EISA boards, which can fully participate in EISA's automatic configuration scheme. (The EISA version of the Appian Renegade 1280 didn't arrive in time for testing.)

A major advantage of the EISA bus over ISA is the 32-bit address space (4 GB), compared to 24 bits (16 MB) for ISA. Compaq's ISA-based QVision 1280/I in particular requires a large chunk of the ISA address space; using this board limits your overall ISA system memory to 12 MB.

The QVision 1280/E earned our highest rankings for general-purpose and CAD/CAM. With even IBM now moving to third-party graphics designs, Compaq is one of the last system vendors to make its own video accelerators and write its own drivers. The QVision 1280/E is a remarkable success; it dominated all the other cards in the 256-color graphics modes. However, its drivers for 64,000 colors are newer and not as well tuned. Consequently, it placed only sixth in those tests.

The QVision 1280/E gains much of its speed through highly tuned drivers; it was one of the few cards to quickly handle a display of a 24-bit DIB (device-independent bit map). By mapping the entire VRAM into the system-address space, the QVision 1280/E saves time that would otherwise be spent paging memory over other designs.

For the best general-purpose alternatives to the QVision 1280/E, look to the ISA cards we've ranked. At $199, the Paradise/Western Digital Accelerator 24 offers good value as a low-cost general-purpose card for EISA systems. The Hercules Graphite Pro HG310 and the Volante Warp20-2 are nearly twins. Both are ISA boards based on IIT AGX accelerators and provide 1 or 2 MB of VRAM at similar prices.

Both of these boards are also competitive choices for the best direct-color and CAD/CAM boards. (Their maximum 2 MB of memory is not enough for serious color publishing applications, however.) We give a slight edge to the Graphite Pro HG310 here because of its broad range of support options, the strength of its bundled utilit ies, and its better performance.

The Appian Renegade 1280 was our choice for 64,000 colors on VL-Bus and ISA, and EISA is no exception. The 8-bit drivers for the ISA-based Renegade 1280 are uninspired; displaying a 24-bit DIB takes a whopping 22 seconds in 1024 by 768 resolution, and 37 seconds in 1280 by 1024 resolution. The 16-bit (64,000 colors) drivers, however, are a masterpiece, displaying the same 24-bit DIB in only four-tenths of a second. The Renegade 1280 ISA was one of the few adapters that were faster using 64,000 colors than they were using 256 colors. The Renegade 1280 uses Appian's own accelerator technology.

A more polished, though somewhat slower, board is the ATI Graphics Ultra Pro EISA. Like the Renegade 1280 ISA, the Graphics Ultra Pro shines its brightest using 16-bit, direct color. The Graphics Ultra Pro could not match the Renegade 1280's overall speed, but it was significantly faster at Blting (i.e., making raw pixel copies from memory to screen): 3.5 million pixels per s econd for the Graphics Ultra Pro, compared to 2.5 million pixels per second for the Renegade 1280. (An EISA version of the Renegade 1280 would probably be faster, however.)

Blting performance is the all-important parameter for multimedia applications and image-editing applications. Considering ATI's advanced support for Video for Windows, the Graphics Ultra Pro looks like a natural for people with a special interest in multimedia. The Graphics Ultra Pro is based on ATI's own Mach 32 accelerator.

The main alternative to the QVision 1280/E for CAD/CAM applications is the Sigma WinMach 1600. The WinMach 1600 is our CAD/CAM choice for ISA systems, but it can't match the speed of the QVision 1280/E on EISA systems. (S3 has an improved driver in the works, but it was in beta at the time of our tests.) The WinMach 1600 offers the added enticement of hardware panning, a 1600- by 1200-pixel desktop, and a strong package of special imaging utilities.


Need to speed business applications?



GENERAL PURPOSE
Compaq QVision 1280/E


This accelerator was the equal of better-known designs and fast enough to be on a par with VL-Bus video accelerators. Like all non-VL-Bus boards, the QVision 1280/E has relatively poor pixel-copy speeds, but its speed in displaying text and complex graphics is among the fastest of any board.


                                          SPEED    EASE OF    PRICE AS  RAM AS
                                        (SECONDS)    USE      TESTED    TESTED
BEST      Compaq QVision 1280/E          0.641       ***      $599      2 MB
RUNNER-UP Paradise/W D Accelerator 24    0.733       **       $199      1 MB
RUNNER-UP Hercules Graphite Pro HG310    0.744       ***      $399      1 MB
RUNNER-UP Volante Warp20-2               0.766       ***      $499      1 MB
RUNNER-UP ATI Graphics Ultra Pro EISA    0.859       ***      $549      1.5 MB


                                          ACCELERATOR CONTROLLER
BEST      Compaq QVision 1280/E
           Proprietary
RUNNER-UP Paradise/W D Accelerator 24     WD90C31
RUNNER-UP Hercules Graphite Pro HG310     IIT AGX015
RUNNER-UP Volante Warp20-2                IIT AGX-14/15
RUNNER-UP ATI Graphics Ultra Pro EISA     ATI Mach 32


                                                  STANDARD DRIVERS
                                          AUTOCAD  OS/2  WINDOWS 3.1  UNIX#
BEST      Compaq QVision 1280/E             X        X        X         X
RUNNER-UP Paradise/W D Accelerator 24       X        X        X
RUNNER-UP Hercules Graphite Pro HG310       X        X        X
RUNNER-UP Volante Warp20-2                  X        X        X         X
RUNNER-UP ATI Graphics Ultra Pro EISA       X        X        X         X


KEY
Ease of Use:
Excellent ****
Good      ***
Fair      **
Poor      *
# SCO Open Systems' version of the X Window System.




EISA leaders in 64,000 colors



DIRECT COLOR
Appian Renegade 1280 ISA


Although we tested the ISA version
 of the board here, the Renegade 1280 was 17 percent faster than the second-place ATI Graphics Ultra Pro EISA. The Renegade 1280 is not without warts: It is one of the few cards that requires a driver to be loaded during the DOS boot.


                                          SPEED    EASE OF    PRICE AS  RAM AS
                                        (SECONDS)    USE      TESTED    TESTED
BEST      Appian Renegade 1280 ISA         0.659     ***      $490      2 MB
RUNNER-UP ATI Graphics Ultra Pro EISA      0.769     ***      $549      2 MB
RUNNER-UP Compaq QVision 1280/E            0.859     ***      $599      2 MB
RUNNER-UP Nth Graphics Nth Edge 1280       0.787     ***      $995      2 MB
RUNNER-UP Sigma Designs WinMach 1600       0.832     ***      $995      2 MB


                                          ACCELERATOR CONTROLLER
BEST      Appian Renegade 1280 ISA        Appian AGC98032
RUNNER-UP ATI Graphics Ultra Pro EISA     ATI Mach 32
RUNNER-UP Compaq QVision 1280/E           Propr
ietary
RUNNER-UP Nth Graphics Nth Edge 1280      Chips & Technologies 481
RUNNER-UP Sigma Designs WinMach 1600      S3 86C928


                                                  STANDARD DRIVERS
                                          AUTOCAD  OS/2  WINDOWS 3.1  UNIX#
BEST      Appian Renegade 1280 ISA           X       X        X         X
RUNNER-UP ATI Graphics Ultra Pro EISA        X       X        X         X
RUNNER-UP Compaq QVision 1280/E              X       X        X         X
RUNNER-UP Nth Graphics Nth Edge 1280         X                X
RUNNER-UP Sigma Designs WinMach 1600                          X         X


KEY
Ease of Use:
Excellent ****
Good      ***
Fair      **
Poor      *
# SCO Open Systems' version of the X Window System.




Want the best for true-color work?



DESKTOP PUBLISHING
SuperMac Spectrum/24 EISA


The Spectrum/24's 1152 by 910 resolution with 16.7 million colors makes a good match for programs such as QuarkXPr
ess and Adobe Photoshop. The other boards ranked here offer credible performance.


                                          SPEED    EASE OF    PRICE AS  RAM AS
                                        (SECONDS)    USE      TESTED    TESTED
BEST      SuperMac Spectrum/24 EISA      1.058       **       $999      3 MB
RUNNER-UP Raster Ops PaintBoard PC       1.963       ***      $999      3 MB
RUNNER-UP Number Nine #9GXE              2.700       ***      $895      4 MB


                                          ACCELERATOR CONTROLLER
BEST      SuperMac Spectrum/24 EISA       Proprietary
RUNNER-UP Raster Ops PaintBoard PC        S3 86C924
RUNNER-UP Number Nine #9GXE               S3 86C928


                                                  STANDARD DRIVERS
                                          AUTOCAD  OS/2  WINDOWS 3.1  UNIX#
BEST      SuperMac Spectrum/24 EISA                            X
RUNNER-UP Raster Ops PaintBoard PC           X                 X
RUNNER-UP Number Nine #9G
XE                          X         X


KEY
Ease of Use:
Excellent ****
Good      ***
Fair      **
Poor      *
# SCO Open Systems' version of the X Window System.




For high resolution and speed



CAD/CAM
Compaq QVision 1280/E


The 1280/E's performance puts it in the league of VL-Bus graphics adapters, but its main drawback is the 2-MB maximum VRAM, which limits resolution compared to the more expensive 3- and 4-MB boards.


                                          SPEED    EASE OF    PRICE AS  RAM AS
                                        (SECONDS)    USE      TESTED    TESTED
BEST      Compaq QVision 1280/E             0.687    ***      $599      2 MB
RUNNER-UP Sigma Designs WinMach 1600        0.808    ***      $995      2 MB
RUNNER-UP Pixelworks WhirlWin-II            0.815    ***      $895      2 MB
RUNNER-UP Appian Renegade 1280 ISA          0.886    ***      $490      2 MB
RUNNER-UP ATI Graphics Ultra Pro EISA       0.948    ***
      $549      2 MB


                                          ACCELERATOR CONTROLLER
BEST      Compaq QVision 1280/E           Proprietary
RUNNER-UP Sigma Designs WinMach 1600      S3 86C928
RUNNER-UP Pixelworks WhirlWin-II          S3 86C928
RUNNER-UP Appian Renegade 1280 ISA        Appian AGC98032
RUNNER-UP ATI Graphics Ultra Pro EISA     ATI Mach 32


                                                  STANDARD DRIVERS
                                          AUTOCAD  OS/2  WINDOWS 3.1  UNIX#
BEST      Compaq QVision 1280/E              X       X        X          X
RUNNER-UP Sigma Designs WinMach 1600                 X        X
RUNNER-UP Pixelworks WhirlWin-II             X       X        X          X
RUNNER-UP Appian Renegade 1280 ISA           X       X        X          X
RUNNER-UP ATI Graphics Ultra Pro EISA        X       X        X          X


KEY
Ease of Use:
Excellent ****
Good      ***
Fair      **
Poor      *
# SCO Open Systems' version of the X Window System.


Up to the BYTE Lab Product Report section contentsGo to previous article: DSP AccelerationGo to next article: How Bus Architecture Affects GraphicsSearchSend a comment on this articleSubscribe to BYTE or BYTE on CD-ROM  
Flexible C++
Matthew Wilson
My approach to software engineering is far more pragmatic than it is theoretical--and no language better exemplifies this than C++.

more...

BYTE Digest

BYTE Digest editors every month analyze and evaluate the best articles from Information Week, EE Times, Dr. Dobb's Journal, Network Computing, Sys Admin, and dozens of other CMP publications—bringing you critical news and information about wireless communication, computer security, software development, embedded systems, and more!

Find out more

BYTE.com Store

BYTE CD-ROM
NOW, on one CD-ROM, you can instantly access more than 8 years of BYTE.
 
The Best of BYTE Volume 1: Programming Languages
The Best of BYTE
Volume 1: Programming Languages
In this issue of Best of BYTE, we bring together some of the leading programming language designers and implementors...

Copyright © 2005 CMP Media LLC, Privacy Policy, Your California Privacy rights, Terms of Service
Site comments: webmaster@byte.com
SDMG Web Sites: BYTE.com, C/C++ Users Journal, Dr. Dobb's Journal, MSDN Magazine, New Architect, SD Expo, SD Magazine, Sys Admin, The Perl Journal, UnixReview.com, Windows Developer Network