It seems that the new AMD Radeon R9 Fury X is able to compete with the GeForce GTX 980 Ti and Titan X in configurations with 4 graphics cards as Pulse88 from Sweden entered the HWBOT Hall of Fame of both 3DMark Fire Strike Ultra and 3DMark Fire Strike Extreme with quad crossfire Fury X system.
In the most demanding 3D benchmark currently available for download, Pulse88 scores 16369 points with 4x Radeon R9 Fury X at 1124/550 MHz, cooled with the stock all-in-one cooler. Combined with a Core i7 5960X at 5 GHz, this is more than 2000 points lower than Gunslinger's water cooled 4-Way GeForce GTX Titan X system. Gunslinger uses a 5.4GHz CPU and his 4 GeForce GTX Titan X cards are clocked at a respectable 1515/2000 MHz. With his score of 16369, Pulse88 is currently ranked 3rd overall for 3DMark Fire Strike Ultra.
One notch down in 3D intensive benchmarks is 3DMark Fire Strike Extreme, where Pulse88 scores 27927 points with his four Radeon R9 Fury X graphics cards. With the same CPU clocked at 5GHz, that is 1600 points lowed than Gunslingers 4-Way GeForce GTX Titan X cooled by custom water cooling. The other components of the Fury X system are: G.SKILL Ripjaws 4 memory, the ASUS Rampage V Extreme motherboard, a HyperX SSD and (at least one) SilverStone 1500W power supply.