The first up-close pictures of Micron’s GDDR5X memory chips have been released. The photos reveal the 8-gigabit chips package number which is “6HA77Z9TXT-2N3Y” and the part number “MT58K256M32”. The GeForce GTX 1080 is the first production graphics card to make use of this memory and Micron is the first to market with these chips. In the case of the GTX 1080 it makes use of 8-gigabit chips across a 256-bit wide memory interface, to make up its standard 8 GB standard memory amount. The memory clock speed is 2.50 GHz (actual) or 10 Gbps (effective). The memory bandwidth is a staggering 320 GB/s.
From Micron’s latest blog post: “Designed by our specialized team of Graphics memory engineers in Munich, GDDR5X provides NVIDIA with an unprecedented level of memory bandwidth for their new GeForce GTX 1080. The bandwidth delivered by Micron’s GDDR5X memory is the result of thousands of hours of teamwork by some of the most brilliant minds in our two companies.”
GDDR5X is not only faster than the 7 Gbps GDDR5 chips of the previous generation, but are also more energy efficient. This particular chip has a module voltage (VDDQ) of 1.35V. The entire package measures 14 mm x 10 mm x 1.1 mm (LxWxH).