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25th August 2008, 15:53 | #1 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| ATI Catalyst 8.8 vs 8.7: OpenGL Performance Drop Global Performance Drop: 18%. OpenGL performance tumbled by around 26% in dynamic branching (soft shadows), around 23% in vertex processing (surface deformer) and around 4% in Lightsmark 2008. Only FurMark takes advantage of Catalyst 8.8 with a little 4% of performance boost. FurMark makes an intensive use of texture fetching and blending (ROPs) and maybe ATI has improved something in this part of Catalyst. But as said hereafter, Expreview has noticed a performance drop with a Radeon HD 4850 and FurMark. I don’t have such a radeon and then I can’t confirm this last result but FurMark score is somewhat weird… Raise your hand if you are running OpenGL games? What? No one ?.... http://www.geeks3d.com/?p=1018
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25th August 2008, 16:54 | #2 |
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| /me raises hand. 1946 or any of the other IL2 based games America's Army Cellestia.. oh wait, it's a simulation of our universe. DeusEx Homeworld Homeworld Cataclysm Homeworld2 Jedi Knight II : Jedi Outcast Medal of Honor Quake IV (and previous versions) Star Wars: Knights of the Old Republic I'm sure people still play these too: Doom III Hitman - Codename 47 Hitman 2 - Silent Assassin Second Life Serious Sam Sin Soldier Of Fortune II : Double Helix (and previous) Star Trek: Voyager - Elite Force U.T. 2003 ...and I'm pretty sure there are more still being played. |
25th August 2008, 16:59 | #3 | |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| welcome to the forums , thank you for your post! The earlier games you mention there in the first section are old games which run at ridicilous frame rates already, so instead of 240fps you'd get 200FPS UT2003 and newer use DirectX also , except on PS3 where UT3 is OpenGL... but that's not PC platform anymore Serious Sam also has D3D mode DirectX is dominating the 3D platform, ID Software, its main supporter since Quake 1 (with it's custom OpenGL 3D acceleration for 3DFX and other OpenGL cards) stopped using it after Quake 3. There's little future for OpenGL games on the PC platform, the feature list of DX10 (10.1 11) is vast and if implemented correctly will provide the same performance as DX9 with more eye candy. Currently some developers are over eager to add DX10 fluff making the game run slower with DX10, but on paper DX10 cuts the amount of layers between game >> VGA card, increasing performance. Quote:
__________________ Last edited by jmke : 25th August 2008 at 20:27. Reason: removed incorrect data (Doom 3/Quake 4 does run on OpenGL!) | |
25th August 2008, 18:30 | #4 |
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| Geewhiz, and there I was, thinking the question was "Raise your hand if you are running OpenGL games?" Oh, it's my mistake, realy. And if a game can run in OpenGL, I'll list them as running OpenGL on my system. If a game is to run cross platform, OpenGL is still the way to go. If you want to ask retorical (sarcastic) questions, please be more specific. |
25th August 2008, 18:39 | #5 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| nothing sarcastic about the post or the question; no current big-title games are developed with OpenGL. The only people this driver performance loss would mean a lot to is 3D apps which rely on OpenGL, they should stick to older CAT versions. my post was not meant to offend edit: Q4/Doom do run on OpenGL (sorry JAMF you were right!)
__________________ Last edited by jmke : 25th August 2008 at 20:28. |
25th August 2008, 20:30 | #7 | |||
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| aha! confusing to say the least. Doom 3/Quake 4 requires a GFX card which meets DX8 standards, even better DX9 standards... Quote:
Quote:
3D engine: OpenGL we're getting somewhere. Sorry for the mix-up JAMF, you were right! also found this: Quote:
no performance drop going from 8.7 > 8.8 in ET:QW ... ? anybody care to do a timedemo run in Quake 3 ?
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25th August 2008, 21:13 | #8 |
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| I do not have Q3. This shouldn't be a surprise almost all OpenGL games are 2-8 years old. GPU drivers will optimize for most current games only, usually at the expense of dropping performance for older games. And as Jmke said, older games play so fast on current hardware it doesn't matter anymore. Is why am not surprised that Quake Wars doesn't see a performance hit. It is the only current/new OpenGL "game" that I know of. |
25th August 2008, 21:21 | #9 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,021
| Quake 3 timedemo, custom timedemo 320x240 all low detail: 342fps 1600x1200 all high detail: 342fps it plays back a 20min demo in less than a minute... Core 2 E8400 - 9800 GTX
__________________ Last edited by jmke : 25th August 2008 at 21:23. |
25th August 2008, 23:20 | #10 | |
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| Quake 3 system requirements: Quote:
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