tiger substantially improves frame rates on Doom 3 - Cafe Macs exclusive

Macdantheman07

macrumors member
Original poster
Jan 24, 2004
39
0
NYC
Café Macs Exclusive "With Tiger's official release date soon to be announced, according to rumors, we decided to take a look at real-world performance improvements with Apple's next-generation operating system.

As announced by Apple, Tiger will implement an entirely new core graphics engine for Macs whose video processors can support it. Jointly called Core Image and Core Video, these new graphics APIs allow the computer to process most, if not all, graphics rendering directly on the video card's GPU, rather than taxing the computer's own CPU, freeing up processor cycles for other tasks.

A developer was kind enough to examine these improvements, which have not only affected programs that implement them, but also applications that take advantage of existing graphics APIs - most notably OpenGL.

The recently released DOOM 3 was put to the test to examine these improvements, and the differences between the test machine running Mac OS X 10.3.8 and the same machine running the latest 10.4 Beta are drastic.

The test machine was reportedly a 1st-generation Dual 2.0 GHz Power Mac G5 with 1 GB RAM and was built BTO with a Radeon 9800 Pro.

As we already know, the performance of DOOM 3 for Mac in comparison to its Windows counterpart is a little depressing - but those tests were on a Mac running Panther. The test machine was able to crank out an acceptable, yet somewhat lackluster performance by running the game at somewhere between 20-30 FPS at 800x600 on High quality.

On the same test machine, now running Tiger, saw an incredible performance boost. A clean install of both the latest Tiger beta (8A414) and DOOM 3 saw a steady 35-40 FPS at 1024x768 on High quality, with 2x Anti-aliasing enabled. Quite an improvement.

What we are unsure of is whether it is one of these new Tiger graphics technologies or some other under-the-hood improvement that is offering this performance boost, or whether it is just an improved graphics driver that is helping out this fantastic, yet taxing game.

We are having more tests done and will post those results as they are finalized."
http://www.cafemacs.com/
 

Macdantheman07

macrumors member
Original poster
Jan 24, 2004
39
0
NYC
yeah this is pretty good news.

My computers are not exactly state of the art anymore, thus I am hoping that I will get a frame rate boost on Medal Of Honor Allied Assault and Halo.

I hear that part of what makes windows so nice for games is that it is able to fucus all of its attention (CPU and GPU) on the game, where as Mac OS X has many things (typical of UNIX system) running in the background all the time.
 

Lacero

macrumors 604
Jan 20, 2005
6,639
2
Doom 3 runs acceptable albeit not awesome on a Dual G5 1.8, 1.2GB RAM with the stock Nvidia FX5200. Although I have to set it at 640x480 Low Quality, 4x AA with Shadows turned off. I haven't clocked the FPS but I figure it to be around 15-30fps. If Tiger does promise to drastically improve frame rates, I'll seriously consider buying a X800.
 

Demon Hunter

macrumors 68020
Mar 30, 2004
2,245
38
I'm very excited about this development. :)

It means Apple must be paying attention to OS X's memory and processor management... maybe they found a way to give one program absolute kernel access, while allowing the others to standby like Windows does...
 

benpatient

macrumors 68000
Nov 4, 2003
1,870
0
this appears to be...fake news.

there are multiple people posting in various forums all over the net saying things like "I can't break my NDA, but this almost certainly isn't true"
 

applekid

macrumors 68020
Jul 3, 2003
2,098
0
benpatient said:
this appears to be...fake news.

there are multiple people posting in various forums all over the net saying things like "I can't break my NDA, but this almost certainly isn't true"
I've heard a mix of agreement and disagreement. Now, the ones I read were older builds, so maybe things have improved with these last builds.

If you read the comments on that article, there is a mixed bag of results, too (sounds like pirated copies, but nevertheless, sounds like there's been some improvement).

I for one will stay optimistic until Tiger's release. Panther had some nice enhancements for gaming and so did Jaguar.
 

eXan

macrumors 601
Jan 10, 2005
4,713
18
Russia
I hope this rumor is true... And that Tiger will improve performance of my KOTOR and UT2004 :D
 

grabberslasher

macrumors 6502
Aug 2, 2002
409
1
Éire
Just FYIW I've only played Doom 3 on my Tiger machine. Powerbook 17" 1.5GHz, 128Mb gfx.

The performance on the latest Tiger build at 1440x900 with shadows off, no AA or anisotropy, nor decals and a slightly overclocked (+15%) GPU are around 20fps standard, 7fps when Imp throws fireball, and 50fps+ in certain areas.

ATIAccelerator for overclocking.

This is up by 6fps from the previous Tiger, and is untested in Panther.
 

T'hain Esh Kelch

macrumors 603
Aug 5, 2001
5,065
4,349
Denmark
grabberslasher said:
Just FYIW I've only played Doom 3 on my Tiger machine. Powerbook 17" 1.5GHz, 128Mb gfx.

The performance on the latest Tiger build at 1440x900 with shadows off, no AA or anisotropy, nor decals and a slightly overclocked (+15%) GPU are around 20fps standard, 7fps when Imp throws fireball, and 50fps+ in certain areas.

ATIAccelerator for overclocking.

This is up by 6fps from the previous Tiger, and is untested in Panther.
20 fps at 1440x900? Im darn impressed!
 

benpatient

macrumors 68000
Nov 4, 2003
1,870
0
do you also see the "all shadows and every feature turned off" bit, as well, i hope...

no shadows, all decals and visual effects lowered all the way...basically it looks like quake 3. except 7 fps.

that's not "darned impressive" in my book.
 

Lord Blackadder

macrumors G5
May 7, 2004
13,521
2,557
Sod off
Well, I'm expecting to see improvement from Tiger, but the article is claiming some pretty big performance jumps. I think that is certainly possible (we all know that current games do not take full advantage of Apple hardware), but whether this rumor is true or not remains to be seen. I'll stay optimistic until I hear otherwise. :D
 

mrgreen4242

macrumors 601
Feb 10, 2004
4,352
1
If this is even close to true, Tiger will easily be the best bang for buck gaming upgrade available to most Mac owners. I don't think that there is a video card or RAM upgrade that could touch that kind of improvement for under $130.
 

Lacero

macrumors 604
Jan 20, 2005
6,639
2
Have you seen some of the benchmarks at Barefeats? Looks like res between 6x4, 8x6 and 10x7, the implementation of OpenGL causes the frame rates to maintain at or around 45 FPS. This looks like a bottleneck between the CPU and GPU. Going higher res, the video card starts to choke, but it's hard to know for sure. So while it is still a rumor, it's highly likely Tiger should improve the frame rates in Doom 3.
 

NNO-Stephen

macrumors 6502
Jun 9, 2003
278
0
Tulsa, Oklahoma
I net 2 frames a second gain on my PowerMac G4 867Mhz Radeon 9800 Pro, 1.5GB RAM

this is using 10.3.8 I get ~23 frames a sec and on 10.4 (8A414) I get ~25

low detail, no effects, no AA.
 

deadfrog

macrumors regular
Sep 5, 2004
115
0
UK / Bournemouth
surely some of the irratic views on whether its improved or not could be dwon to what graphic card they have in... surely if it doesnt support core graphics and stuff it wont improve the gaming much... having said that i guess doom3 wont run on any gpu that doesnt support core garphics... dunno?
 

Santaduck

macrumors 6502a
Oct 21, 2003
627
0
Honolulu
as in another thread, www.macbidouille.com has refuted the cafemacs results, while other readers with access to the tiger betas have reported modest benefits on some machines (although nothing like the incredible % gains of cafemacs).