The Boost Clock speed – the frequency the GPU increases to when under load – has also dropped, down to 1075MHz from the GTX 980’s 1216MHz.Feeding such a powerful GPU requires some serious memory bandwidth, and NVIDIA has increased the memory bus width to 384-bits, up from the 256-bit bus of the GTX 980. It’s no wonder that it ships at a slightly slower clockspeed than the GTX 980, with a base speed of 1000MHz, compared to the GTX 980’s 1126MHz. As a result, the overall size of the GPU has increased by just under 50%, making this a brute of a chip, measuring 601 square millimetres. The texture units have had a similar increase, rising from 128 to 192, while the ROPs (Render Output Unit) have also increased by 50%, up to 96 from the GM204’s 64. NVIDIA’s CUDA Cores are the units that handle the heavy lifting inside Maxwell, and the GM200 now ships with 3072 of these, a 50% increase on the 2048 found within the GM204. They’ve basically taken the GM204 chip found at the heart of the GTX 980, and increased every internal section by 50%, creating the new GM200 chip that powers the Titan X. Like all of NVIDIA’s existing graphics cards, the Titan X is based on its Maxwell 2 architecture. Whether or not it’s worth the audacious price tag is another question entirely. Unlike previous Titans, this isn’t just a slightly enhanced version of its flagship GPU NVIDIA has gone the whole hog and developed a product t hat is a huge step up from the GTX 980.
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