Multi-Display Gaming Artifacts Shown With AMD, 4K Affected Too

[wraggster]

Multi-display gaming has really found a niche in the world of high-end PC gaming, starting when AMD released Eyefinity in 2009 in three-panel configurations. AMD expanded out to six-screen options (http://games.slashdot.org/story/10/03/31/0546257/radeon-hd-5870-eyefinity-6-gaming-on-six-panels) in 2010 and NVIDIA followed shortly thereafter with a similar multi-screen solution called Surround. Over the last 12 months or so, GPU performance testing has gone through a sort of revolution (http://tech.slashdot.org/story/13/02/22/1827212/new-gpu-testing-methodology-puts-multi-gpu-solutions-in-question) as the move from software measurement to hardware capture measurement has taken hold. PC Perspective has done testing with this new technology on AMD Eyefinity and NVIDIA Surround (http://www.pcper.com/reviews/Graphics-Cards/Frame-Rating-Eyefinity-vs-Surround-Single-and-Multi-GPU-Configurations) configurations at 5760x1080 resolution and found there were some substantial anomalies in the AMD captures (http://www.pcper.com/reviews/Graphics-Cards/Frame-Rating-Eyefinity-vs-Surround-Single-and-Multi-GPU-Configurations/Discov). The AMD cards exhibited dropped frames, interleaved frames (jumping back and forth between buffers) and even stepped, non-horizontal vertical sync tearing. The result is a much lower observed frame rate than software like FRAPS would indicate and these problems will also be found when using the current top-end, dual-head 4K PC displays since they emulate Eyefinity and Surround for setup."

http://hardware.slashdot.org/story/13/09/18/0038213/multi-display-gaming-artifacts-shown-with-amd-4k-affected-too