Reports are going around that NVIDIA's upcoming GeForce GTX 990M flagship card for the laptop market will be based on a fully-fledged GM204 GPU - the same chip that powers the GeForce GTX 980 desktop card. KitGuru writes the mobile card will have 2048 stream processors, 128 texture units, 64 ROPs, and a 256-bit memory bus. The GPU clockspeed is said to be 1190MHz, based on hands-on experiences with the watercooled ROG GX700 laptop from ASUS at the IFA show in Berlin.
The new GeForce GTX 990M should demonstrate performance on par with desktop GeForce GTX 980, which means that the new graphics adapter will be the highest-performing graphics solution for mobile computers. Thermal design power of the fully-fledged GM204 is pretty high, hence, the GeForce GTX 990M will be used only for ultra-high-end laptops.
Previously it was expected that Nvidia will use a version of its GM200 graphics chip for its GeForce GTX 990M adapter. However, even at low clock-rate, the GM200 may be too hot and power-hungry for laptops.