AMD Radeon HD 7990 6GB Review - Malta Gets Frame Rated
Far Cry 3
Far Cry 3 (DirectX 11)
Beyond the reach of civilization lies a lawless island ruled by violence. This is where you find yourself stranded, caught in a bloody conflict between psychotic warlords and indigenous rebels. Encounter a disturbed and memorable cast of characters as you take a gritty journey to the dark side of humanity. Unravel a deep and emotional story of survival, written by a Writers Guild Award winner.
Our Settings for Far Cry 3
Interesting! Though we are seeing wild fluctuations across the board with Far Cry 3, as has been the case since the very beginning of the game's life, the new 13.5 beta driver has made some improvements! Not only do we not see runt frames from the Radeon HD 7990 we also see much better performance compared to the HD 7970s in CrossFire (running on 13.3).
The AMD cards do show more "high" spikes in frame time but nothing that is causing a real-world drop in perceived frame rates, just some minor hitching. Though the GTX Titan and GTX 690 are a bit more consistent, the black line of the HD 7990 is definitely the best we have in our lineup.
The average frame rates with the HD 7990 and the 13.5 beta driver show a big increase in the average frame rate though that does filter down steadily and accelerates in that direction past the 95th percentile.
Those spikes are definitely causing our frame variance data to favor the NVIDIA cards though, as they should provide less stutter overall in the game, but with lower average frame rates.
Well at 2560x1440 we do see a few more problems with the new HD 7990; the runts have returned in a few places, dropping the observed frame rates down quite a bit at or below the performance results of the GTX cards from NVIDIA.
As the resolution has increased, the frame time data has shifted dramatically as well. The GTX Titan is proving to be by far the most consistent performer in the game with the GTX 690 close behind it. The new HD 7990 has some areas of quality animation but otherwise is a wash of runts frames.
The HD 7990's slope of instantaneous frame rates quick falls below the other cards in our testing.
While we were praising the 13.5 beta driver and the HD 7990 combination at 1920x1080, this time we have it falling well behind the HD 7970s in CrossFire with the 13.3 driver, leaving the GTX Titan as the option with the smoothest performance.
Both the HD 7990 and HD 7970s see a lot of dropped frames in Eyefinity mode, caused by some problems with the software interposer that AMD is forced to use at that resolution.
Notice the thin green line in the middle - the smoothness benefits of a single, high powered GPU cannot be overlooked it seems. Even the GTX 690 has no chance of keeping up with it.
The GTX Titan stands alone at the top of the pack, only pulling in 22 FPS average through our test run but at a very consistent rate.
Ouch - even the GTX 690 passes the 10 ms frame variance rate at the 40th percentile as do the AMD cards in the 60s and 70s.
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