Frame Rating: High End GPUs Benchmarked at 4K Resolutions
DiRT 3 - $999 Level
DiRT 3 (DirectX 11)
A continuation of the Colin McRae series, but without his name, DiRT 3 is one of the top racing games in the world and offers stunning imagery along with support for features of DirectX 11.
Our settings for DiRT 3
Our run with the HD 7990 that does not use the prototype driver suffers from the same runt frame issues we saw on the HD 7970s in CrossFire on the previous page, but with the upcoming driver the results for the HD 7990 look great, keeping up with the GTX 690 at 3840x2160 testing.
The GTX Titan produces the smoothest frame times in our testing followed by the blue line of the GTX 690. The black line that represents the HD 7990 with the prototype driver are much better than the orange line, but still not up to the level of NVIDIA's dual-GPU solution.
Our frame rate graph shows the average between the GTX 690 and the HD 7990 with the prototype driver are right in line with one another. The GTX Titan is considerably slower at 53 FPS, about 32% slower than the GTX 690 and HD 7990.
Where the Titan excels though is with frame time consistency - the Titan's results stay lower (better) than any other option, including the GTX 690 and the HD 7990 with the prototype driver.
We know how Titan's scale in 2-Way SLI but it seems the game does reasonably well at 3-Way SLI scaling too, keeping the frame rate over 100 FPS consistently.
Ouch, this is the first time we have see frame times from SLI that look this poor - the GTX Titan in 3-Way SLI is showing a TON of variance from frame to frame, something that looks like what you might see from AMD CrossFire. Interestingly, the 2-Way SLI configuration doesn't show that problem.
This is why multiple angles of the same data is so important - while the 50th percentile (close to average) of the 3-Way Titan setup shows a big jump from 2-Way performance, it actually has frame time LOWER than the 2-Way setup after the 90th percentile. That essentially means that 10% of the time, three Titans would be slower than 2 Titans.
Clearly the 3-Way SLI performance here needs some work from NVIDIA as the frame time variance results show the triple card setup to be much more likely to produce a stuttery animation than the 2-Way or single card results.
Looking for native 4K captures of our DiRT 3 gameplay? Have fun!
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