Sapphire HD6990 4GB GDDR5
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Sapphire HD6990 4GB GDDR5

A key feature of the Sapphire HD6990 4GB GDDR5 is a switch selectable dual BIOS, which allows the user to chose a core clock speed of 830MHz or 880MHz for extreme use. Also, it is fitted with 4GB of GDDR5 memory.

Product Specification

Manufacturing Process 40nm
Core Clock 830MHz
Stream Processors 3072
Stream Processor Clock 830MHz
Texture Mapping Units (TMUs) 192
Memory Clock (DDR) 5000MHz DDR
Memory Bus width 256-bit
Memory Bandwidth 320GB/s
PCI Express Interface PCIe ver 2.1 x16
DVI Outputs Yes
DisplayPort Outputs 4 (mini-DisplayPort)