Modern games of 2012 should therefore be playable with high detail settings. On average the 650M SLI could therefore be placed a bit above a Geforce GTX 660M in the high-end class. in 3DMark 11 benchmarks) down to a single GeForce GT 650M (if SLI is not supported by the game). The gaming performance of the SLI combination ranges between a GeForce GTX 670MX (maximum, e.g. The implementation of this boost mode is done in the BIOS, but it is ultimately dependent upon the manufacturer of the laptop. PCIe 3.0 is now supported by the mobile Kepler series and an optional Turbo mode can automatically overclock the Nvidia card by a theoretical 15 percent if the laptop cooling system allows it. However, due to the missing hot clock of the shader domain, two shaders of a Kepler chip are about as fast as one shader of a Fermi chip (as the latter is clocked twice as fast).
Although more shader cores are available in the Kepler architecture as compared to the Fermi design, the Kepler shaders are still expected to be up to twice as power efficient. The GK107 Kepler core offers two shader blocks, called SMX, each with 192 shaders for a total of 384 shader cores that are clocked at the same speed as the central core. The Kepler architecture is the successor to the Fermi architecture that first appeared in laptops with the GeForce 400M series. The 650M SLI is currently used only in the Lenovo Y500 with fast GDDR5 graphics memory and clock rates of 790 to 835 MHz (GeForce Boost). This happens because of different timespans between two frames (e.g., irregular delays between sequential frames). Therefore, it may suffer from micro stuttering in low fps ranges of 30fps. With SLI, each card usually renders a single frame (AFR mode). Each card has a 28nm GK107 core based on the Kepler architecture. The NVIDIA GeForce GT 650M SLI is a high-end DirectX 11-compatible graphics solution for laptops, consisting of two GeForce GT 650M. NVIDIA GeForce GT 650M SLI ► remove from comparison
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