Total War: Warhammer - Norsca is excellently optimized
according to (2) user reviews
PC System Analysis for Total War: Warhammer - Norsca
THIS DLC NEEDS TOTAL WAR WARHAMMER base game to run.For Total Warhammer's recommended requirements at 1080p res, with 45-55 Frame rate across the campaign map, while fighting with 20v20 unit in battle mode, then you will need 2GB VRAM and an AMD R9 270X or an Nvidia GTX760. The processor needed for TW:Warhammer recommended specs is an i5-4570 coupled with 8GB system memory. For those wanting to run at Ultra graphics setting and 60+ FPS you will need an i7-4790K CPU and AMD FURY X GPU or a GTX 980. This means Total Warhammer can run on a wide range of computer hardware.
Total War: Warhammer - Norsca is DLC for Total War: Warhammer that comes as a pre-order bonus with copies of the sequel, Total War: Warhammer II. The marauding tribes of the Norsca and Wintertooth live in the frozen north of the Old World, between the Chaos Wastes and the Sea of Claws. These ferocious warriors specialise in dealing in harsh climes, relentlessly raiding and sacking, always on the move.