A picture of efficiency, the GTX 980 exceeds the performance of the GTX 780 with a lower power requirement. Metal Compatible.
Boot screen
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up to 4K@60Hz via DisplayPort, up to 4K@30Hz via HDMI, up to 4K@30Hz via DVI
Condition
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Used (flashed)
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6 months
Package includes
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2x 6-pin Mac Pro PCIe power cable
Specification
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1x DVI dual-link, 3x DisplayPort 1.2, 1x HDMI 2.0 (1.4 under macOS)
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up to 4 concurrent displays
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1266 MHz + 1367 MHz boost
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1753 MHz
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4 GB GDDR5
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256-bit
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PCI-Express 2.0 x16
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2048
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6-pin + 6-pin
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165 W
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HDMI Audio, DisplayPort Audio
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Metal, CUDA, OpenCL, OpenGL
System Requirements
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3,1 (2008), 4,1 (2009), 5,1 (2010-2012)
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10.10 (Yosemite) or later, 10.11 (El Capitan) or later, 10.12 (Sierra) or later, 10.13 (High Sierra) or later
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Quadro & GeForce macOS driver, CUDA driver
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Yes, via Apple BootCamp (also in UEFI mode)