GIGABYTE GEFORCE GTX 980 Gigabyte GeForce GTX 980 is Maxwell clocked at 1276Mhz with 4GB GDDR5 clocked at 7000Mhz. Gigabyte GeForce GTX 980 has memory interface of 256Bit with 2048 shaders with support for directx 11 with TDP of 178. Evga GeForce GTX 980 is Maxwell clocked at 1266Mhz with 4GB GDDR5 clocked at 7000Mhz. Evga GeForce GTX 980 has memory interface of 256Bit with 2048 shaders with support for directx 11 with TDP of 178. Benchmark software we are using for testing Gigabyte GeForce GTX 980 and Evga GeForce GTX 980 are as follows:- Battlefield 4, Bioshock Infinite, Farcry 3, Metro Last Light, Sleeping Dogs, Thief, Tomb Raider 3 and Watch Dogs. AMD FX 8370E with Gigabyte GA78LMT S2P using Windows 8."