NVIDIA GeForce GTX 980 (Laptop) vs NVIDIA GeForce GTX 980 Ti

NVIDIA GeForce GTX 980 (Laptop)

The NVIDIA GeForce GTX 980 for notebooks (not the GTX 980M, sometimes also referred to as GeForce GTX 990M) is an overclockable high-end graphics card for laptops. It is an desktop Geforce GTX 980 chip with the same specifications (2048 shaders, 1126 MHz base clock, 7 Gbps memory) based on selected GM204 chips (for lower power consumption).

The performance is also on a level with the desktop GTX 980. Due to the different cooling solutions, the long term performance may be slightly lower compared to a well cooled desktop, but Nvidia assures only small degrades in performance. Furthermore, the mobile GTX 980 supports overclocking out of the box and all laptop manufacturers plan to provide an easy to use tool to overclock the card on the fly.

The core features are also the same, so expect support for DirectX 12 (FL 12_1). There will be no support for the new H.265 video engine as found on the desktop GTX 950.

The power consumption of the card is a lot higher than other mobile graphics card like the GeForce GTX 980M (100 Watt TDP). According to Nvidia, the TDP of the reference design is still 165 Watt like in the desktop version. Including overclocking headroom, the power consumption may reach up to 200 Watt. Therefore, only big laptops with efficient cooling methods can house the GeForce GTX980 for laptops.

NVIDIA GeForce GTX 980 Ti

The Nvidia GeForce GTX 980 Ti is a High-End desktop graphics card based on the Maxwell architecture. It uses the big GM200 chip with 2,816 CUDA cores (versus 2048 of the GTX 980) and is manufactured in 28 nm. Together with the NVidia Titan X (that uses the same chip with more graphics memory), the 980Ti was the fastest single chip graphics card for desktops in 2015. In 2016 the new Pascal based GeForce GTX 1070 and 1080 however were faster while using less energy thanks to the new architecture and the 16 nm process.