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Part 2: 2D, Acceleration, And Windows: Aren't All Graphics Cards Equal?

Tom2D: Line Output

This test exercises line drawing functions in GDI. In Part 1 of this story, these tests produced the most dramatic and obvious differences among graphics cards. Please read the summary at the end of this test, because the problems described in our first exploration were also reproduced on more than 40 systems in our follow-up round, and in results posted later by our readers.

Line benchmark

Test Content:

A total of about 150,000 lines of random length and color are drawn in random positions on-screen as this test runs. Because the seed value for the random number generator remains constant, all test runs should produce the same outputs as well. All objects will appear inside the drawing surface, so no clipping is needed.

GDI Functions Called

For the direct line drawing benchmark:

CreatePenMoveToExLineToSelectObjectDeleteObject

For drawing lines from the DIB buffer:

CreateCompatibleDCCreateDIBSectionCreateSolidBrushRectangleBitBlt

Summary:

Here's where we're able to re-confirm the results seen in Part 1, where ATI's Radeon HD 5000-series cards don't perform well.

Interestingly the measurements for output with Aero turned off increased when we opened a second window and maximized it (something like Mozilla Firefox, for example) before running this test, and then switched back to the test window. After that, a measurably higher value is produced on test machines in a completely reproducible fashion. A second test run after a brief period of time no longer shows this effect, however, and performance losses once again appear across the board.

Again, this is indicative of a driver issue, and we can only hope that the test driver we're working with currently addresses the issue. The rest of the test results speak for themselves. Once again, the Atom with a GMA 950 (and Aero enabled) generates surprisingly good results, and the low performance from the GeForce GTX 285 is equally noteworthy for direct output with Aero disabled. Anything that goes over 20,000 lines drawn probably won’t impact real-world usage scenarios.

  • mdm08
    I have a 5850 with 10.1 drivers and it seems Photoshop CS4 doesn't recognize it as a graphics card that can improve performance so all those cool new features like animated zoom, kinetic panning, and such seem to be disabled. Also, it when you have a very complex group of objects and you try to nudge it ( move it one pixel with arrow keys) the computer actually shows the spinning wheel and has to process this instead of being instantaneous like it was on my older 7600GT. Is this an issue related with what this article is saying about apps written for GDI or is this a different issue i'm experiencing?
    Reply
  • jrharbort
    Scores on 9600M GT and T9600 Core 2 Duo with Windows XP and latest graphics drivers. Only 11 active background processes no including benchmark, and themes disabled.

    BENCHMARK: DIRECT DRAWING TO VISIBLE DEVICE

    Text: 8556 chars/sec
    Line: 47513 lines/sec
    Polygon: 7757 polygons/sec
    Rectangle: 6564 rects/sec
    Arc/Ellipse: 3874 ellipses/sec
    Blitting: 13974 operations/sec
    Stretching: 266 operations/sec
    Splines/Bézier: 10510 splines/sec
    Score: 984
    Reply
  • It would be great if you can run the test on some "pro" cards (quadroFX, quadroNVS, firePro & fireMV). Just to see if the "pro" drivers change standard UI rendering or the optimizations are only for the professional DCC software.
    Reply
  • liquidsnake718
    mdm08I have a 5850 with 10.1 drivers and it seems Photoshop CS4 doesn't recognize it as a graphics card that can improve performance so all those cool new features like animated zoom, kinetic panning, and such seem to be disabled. Also, it when you have a very complex group of objects and you try to nudge it ( move it one pixel with arrow keys) the computer actually shows the spinning wheel and has to process this instead of being instantaneous like it was on my older 7600GT. Is this an issue related with what this article is saying about apps written for GDI or is this a different issue i'm experiencing?Oh great, more news on a 5xxx series not being able to handle simple apps like CS4.... I have yet to use CS4 on my desktop with my 5850..... I hope Ati comes out with more patches if this is a problem.
    Reply
  • taltamir
    windows XP is dead... get on the windows 7 64bit bandwagon already you Luddites! (not referring to the authors of the article, they raise good points; I am referring to those customers who insist that XP is some sort of holy grail of windows bliss never seen before or after)
    Reply
  • Scores on P4 2.8 HT Northwood W ati 2600 pro drivers 10.1 aero Win 7 :
    BENCHMARK: DIRECT DRAWING TO VISIBLE DEVICE

    Text: 8106 chars/sec
    Line: 6528 lines/sec
    Polygon: 249 polygons/sec
    Rectangle: 1484 rects/sec
    Arc/Ellipse: 6127 ellipses/sec
    Blitting: 379 operations/sec
    Stretching: 80 operations/sec
    Splines/Bézier: 5263 splines/sec
    Score: 362
    Reply
  • Scores on P4 2.8 HT Northwood W ati 2600 pro drivers 10.1 aero Win 7 :

    BENCHMARK: DIB-BUFFER AND BLIT

    Text: 12633 chars/sec
    Line: 21067 lines/sec
    Polygon: 4087 polygons/sec
    Rectangle: 535 rects/sec
    Arc/Ellipse: 5604 ellipses/sec
    Blitting: 1443 operations/sec
    Stretching: 213 operations/sec
    Splines/Bézier: 12213 splines/sec
    Score: 607
    Reply
  • giovanni86
    BENCHMARK: DIRECT DRAWING TO VISIBLE DEVICE

    Text: 54466 chars/sec
    Line: 73135 lines/sec
    Polygon: 23943 polygons/sec
    Rectangle: 3927 rects/sec
    Arc/Ellipse: 26911 ellipses/sec
    Blitting: 9827 operations/sec
    Stretching: 464 operations/sec
    Splines/Bézier: 41911 splines/sec
    Score: 2600
    Reply
  • helle040
    Rdaeon 4670, amd 7750be, winxp, drivers 10.1, resolutie 1280x1024, 32bit
    Text: 45746
    line: 40508
    Splines/beziers: 20466
    Poygon: 322
    Rectangle: 1954
    Arc/E.: 3494
    Biting: 2406
    Stretching: 211
    Score: 1150
    Reply
  • wxj
    I’ve always preferred GDI operations over those of the NOD. GDI have more basic operations set verses NOD’s more complex and sometimes unreliable operations.
    Reply