That's a little HIGH \ 93C.
As we alluded to earlier, NVIDIA has maintained the familiar 80C default temperature limit for GTX 980 that we saw on all other high-end GPU Boost 2.0 enabled cards.
www.anandtech.com
The ASUS GTX 980 STRIX DC II OC idled at 27c with its fans off. The fans do not kick on until the GPU core temperature begins to rise. This demonstrates how well the video card is designed to save power, and also its efficiency. When we load into game and increase the system to full load, the ASUS GTX 980 STRIX DC II OC's temperature rose to 65c. The fans kicked on here and ran at 44%. With our max overclock applied, we also increased the fans to 100% to maximize GPU Boosts capacity. The temperature only reached 62c with fans at 100% and the overclock applied.
The ASUS ROG R9 290X MATRIX-P ran much warmer, idling at 32c with its fans running at 30%. With the system under full load the temperature shot up to 81c. This is 16c warmer than the ASUS GTX 980 STRIX DC II OC. Overclocking the ASUS ROG R9 290X MATRIX-P increased the temperature another 13c up to 94c, even with fans at 100%.
Both of these video cards have an excellent cooling device from ASUS. What this comparison really pulls into the picture, is how much more efficient the GTX 980 GPU is compared to the R9 290X. The results are in, and the numbers don't lie.
http://www.hardocp.com/article/2014/12/29/asus_gtx_980_strix_dc_ii_oc_video_card_review