Chaintech Apogee AA6800 GeForce 6800 OC
Testing Methods and System Setup
Graphics card testing has become the most hotly debated issue in the hardware enthusiast community recently. Because of that, testing graphics cards has become a much more complicated process than it once was. Where before you might have been able to rely on the output of a few synthetic, automatic benchmarks to make your video card purchase, that is just no longer the case. Video cards now cost up to $500 and we want to make sure that we are giving the reader as much information as we can to aid you in your purchasing decision. We know we can't run every game or find every bug and error, but we try to do what we can to aid you, our reader, and the community as a whole.
With that in mind, all the benchmarks that you will see in this review are from games that we bought off the shelves just like you. Of these games, there are two different styles of benchmarks that need to be described.
The first is the "timedemo-style" of benchmark. Many of you may be familiar with this style from games like Quake III; a "demo" is recorded in the game and a set number of frames are saved in a file for playback. When playing back the demo, the game engine then renders the frames as quickly as possible, which is why you will often see the "timedemo-style" of benchmarks playing back the game much more quickly than you would ever play the game. In our benchmarks, the FarCry tests were done in this matter: we recorded four custom demos and then played them back on each card at each different resolution and quality setting. Why does this matter? Because in these tests where timedemos are used, the line graphs that show the frame rate at each second, each card may not end at the same time precisly because one card is able to play it back faster than the other -- less time passes and thus the FRAPs application gets slightly fewer frame rates to plot. However, the peaks and valleys and overall performance of each card is still maintained and we can make a judged comparison of the frame rates and performance.
The second type of benchmark you'll see in this article are manual run throughs of a portion of a game. This is where we sit at the game with a mouse in one hand, a keyboard under the other, and play the game to get a benchmark score. This benchmark method makes the graphs and data easy to read, but adds another level of difficulty to the reviewer -- making the manual run throughs repeatable and accurate. I think we've accomplished this by choosing a section of each game that provides us with a clear cut path. We take three readings of each card and setting, average the scores, and present those to you. While this means the benchmarks are not exact to the most minute detail, they are damn close and practicing with this method for many days has made it clear to me that while this method is time consuming, it is definitely a viable option for games without timedemo support.
The second graph is a bar graph that tells you the average framerate, the maximum framerate, and the minimum framerate. The minimum and average are important numbers here as we want the minimum to be high enough to not affect our gaming experience. While it will be the decision of each individual gamer what is the lowest they will allow, comparing the Min FPS to the line graph and seeing how often this minimum occurs, should give you a good idea of what your gaming experience will be like with this game, and that video card on that resolution.
Our tests are completely based around the second type of benchmark method mentioned above -- the manual run through.
Test System Setup
The NVIDIA 6800 graphics card is in a unique place in the market as ATI does not have a direct competitor to it. The 6800 is MSRP'd at $299, the 6800 GT at $399 and the 6800 Ultra at $499. ATI's line up is the X800 Pro at $399 and the X800 XT at $499, and they are going to soon introduce a $199 level card. This still leaves the 6800 on its own, so we compared it to the closest ATI competitor, the X800 Pro. When looking at the benchmarks, keep in mind that $100 seperates the best from NVIDIA and the best from ATI shown here.
Video Card Test System Setup
Intel P4E @ 3.4 GHz
Intel 875DP Motherboard
Antec 460 watt
2x512MB Corsair PC3200LL DDR
40GB 7200RPM Western Digital EIDE
Creative Labs Live!
Chaintech 6800 Apogee (358/770)
Windows XP w/ Service Pack 1
- Doom 3
- City of Heroes
- Far Cry
- Battlefield: Vietnam
- Unreal Tournament 2004
If you have any suggestions for new benchmarks for our graphics or other articles, please feel free to drop me a line.
New NVIDIA 65.76 Drivers
You may notice we are again using unreleased drivers from NVIDIA in this test, just as we did on the 6600GT review. We have been assured by NVIDIA that this release is a WHQL candidate and should be released to the public sometime soon.
The main change included in this release is the addition of a new optimization option.
The Trilinear optimization remains the same and the previous "Anisotropic optimization" has been renamed to the "Anisotropic mip filter optimization" that you see in the image above. The "Aniso sample optimization" is new and adds another software optimization on all but the primary texture stage. I saw very little if any degredation in IQ when using all three optimizations, so in our tests, all three optimizations are turned on.