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=== GeForce 600 series, 700 series and 800M series === {{Main|GeForce 600 series|GeForce 700 series|GeForce 800M series}} [[File:ASUS GTX-650 Ti TOP Cu-II PCI Express 3.0 x16 graphics card.jpg|thumb|[[Asus]] Nvidia GeForce GTX 650 Ti, a PCI Express 3.0 Γ16 graphics card]] In September 2010, Nvidia announced that the successor to [[Fermi (microarchitecture)|Fermi microarchitecture]] would be the [[Kepler (microarchitecture)|Kepler microarchitecture]], manufactured with the TSMC 28 nm fabrication process. Earlier, Nvidia had been contracted to supply their top-end GK110 cores for use in [[Oak Ridge National Laboratory]]'s [[Titan (supercomputer)|"Titan" supercomputer]], leading to a shortage of GK110 cores. After AMD launched their own annual refresh in early 2012, the Radeon HD 7000 series, Nvidia began the release of the GeForce 600 series in March 2012. The GK104 core, originally intended for their mid-range segment of their lineup, became the flagship GTX 680. It introduced significant improvements in performance, heat, and power efficiency compared to the Fermi architecture and closely matched AMD's flagship Radeon HD 7970. It was quickly followed by the dual-GK104 GTX 690 and the GTX 670, which featured only a slightly cut-down GK104 core and was very close in performance to the GTX 680. With the GTX Titan, Nvidia also released GPU Boost 2.0, which would allow the GPU clock speed to increase indefinitely until a user-set temperature limit was reached without passing a user-specified maximum fan speed. The final GeForce 600 series release was the GTX 650 Ti BOOST based on the GK106 core, in response to AMD's Radeon HD 7790 release. At the end of May 2013, Nvidia announced the 700 series, which was still based on the Kepler architecture, however it featured a GK110-based card at the top of the lineup. The GTX 780 was a slightly cut-down Titan that achieved nearly the same performance for two-thirds of the price. It featured the same advanced reference cooler design, but did not have the unlocked double-precision cores and was equipped with 3 GB of memory. At the same time, Nvidia announced [[Nvidia Shadowplay|ShadowPlay]], a screen capture solution that used an integrated H.264 encoder built into the Kepler architecture that Nvidia had not revealed previously. It could be used to record gameplay without a capture card, and with negligible performance decrease compared to software recording solutions, and was available even on the previous generation GeForce 600 series cards. The software beta for ShadowPlay, however, experienced multiple delays and would not be released until the end of October 2013. A week after the release of the GTX 780, Nvidia announced the GTX 770 to be a rebrand of the GTX 680. It was followed by the GTX 760 shortly after, which was also based on the GK104 core and similar to the GTX 660 Ti. No more 700 series cards were set for release in 2013, although Nvidia announced G-Sync, another feature of the Kepler architecture that Nvidia had left unmentioned, which allowed the GPU to dynamically control the refresh rate of G-Sync-compatible monitors which would release in 2014, to combat tearing and judder. However, in October, AMD released the R9 290X, which came in at $100 less than the GTX 780. In response, Nvidia slashed the price of the GTX 780 by $150 and released the GTX 780 Ti, which featured a full 2880-core GK110 core even more powerful than the GTX Titan, along with enhancements to the power delivery system which improved overclocking, and managed to pull ahead of AMD's new release. The GeForce 800M series consists of rebranded 700M series parts based on the Kepler architecture and some lower-end parts based on the newer Maxwell architecture.
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