gamma742 wrote on 03.07.08 at 17:39:03:Correct!
No penalty for FSAA, Free FSAA. 16 X SLI VSA-100s
So much Power, it's kinda Ridiculous!!
The statement "No penalty for FSAA" is not exactly true. I have spent a significant amount of time experimenting with my Q3D SX system that has a single board 8232SB card in it. The "FSAA hit" the user experiences really all depends on two things:
1)How fast your cpu is? The fastest SX system Q3D produced had dual 1 Ghz Pentium 3 CPUs. I don't know of any games from that era that could utilize dual CPUs reliably. So, you are essentially running with a 1 Ghz CPU. To get the maximum performance out of the AA5 architecture, 1 Ghz is way too slow. It just can send the T&L data to the card fast enough.
2)How you configure the drivers. I discovered a little know secret with the Q3D drivers. If you want to see maximum performance, hard select no FSAA (as in 0X). Don't mess with using the toggle key for this test. The Q3D drivers basically won't dynamically reconfigure the chip/FSAA architecture on the fly. This means if you select 8X FSSA, it will only run as fast as a single VSA-100 chip can go, even if you toggle FSAA off.
OK, so what I did is run a little test on my custom 8232SB system at 1600 x 1200 running Quake 3 1.32 point release. I say custom because I ditched the dual Pentium 3 Tyan mobo and installed my Pentium 4 2.8 Ghz mobo/CPU combo with 1 GB of DDR SDRAM. Here are my results:
Quake 3 (v1.32,
MAX detail settings, "four" demo)
No FSAA: 86.0 fps
4X FSAA: 32.0 fps
8X FSAA: 13.3 fps
This clearly shows that FSAA isn't free. You just might not see the difference because of the driver config and/or CPU speed. When properly configured, the board will indeed turn into a 3dfx speed demon. Even with the original Pentium 3 setup, I could achieve frame rates in the 70 fps range at high resolutions. It's all about getting the card T&L data fast enough. If I totally turn off all the detail settings and lower the resolution, I can get about 132 fps with the card. I'm not sure if a faster CPU beyond the 2.8 Ghz would result in much more gains in speed.
Remember, my setup is a single 8232 card. I have no idea what an SLI config will do.
A few more factoids about the AA5 I discovered:
-I couldn't get the drivers on my system to turn off vsync. No matter how I set the config panel, it wouldn't turn off. I managed to hack the registry after hours of hunting and experimented. I later discovered uninstalling and reinstalling the drivers also fixed the problem. The downside is it totally broke the OpenGVS demo software. I could never get it to completely work again. I'm actually running now with a completely clean install of W2K. I didn't get the OpenGVS demo disk with my system, so I haven't been able to reinstall it.
-I've noticed the AA5 numbering system is often misinterpreted by folks. Often, the second number in the string is considered the number of boards in the "stack" by folks. It is in fact the number of pixels per clock cycle the board can render. The number of boards is indicated by a trailing "SB" or "DB". All this info came from the Q3D SX owner's manual. Here are a couple examples:
8132SB (1 pixel per cycle, 32mb/chip, single board)
8232SB (2 pixel per cycle, 32mb/chip, single board)
I'm not sure of the exact configs that were sold, but it looks like gamma742 scored the ultimate setup. I'm actually very curious to know how well the SLI config will run because I have a second functional 8232 single board w/power board and housing that I wouldn't mind adding to my system. I just need to find a set of SLI connectors that go between the cards. Anyone have a spare set;)
Sigtau