ZOTAC GEFORCE GTX 980 Zotac GeForce GTX 980 is Maxwell clocked at 1216Mhz with 4GB GDDR5 clocked at 7010Mhz. Zotac GeForce GTX 980 has memory interface of 256Bit with 2048 shaders with support for directx 11 with TDP of 178. Palit GeForce GTX 680 is GK104 clocked at 1000Mhz with 2GB GDDR5 clocked at 6000Mhz. Palit GeForce GTX 680 has memory interface of 256Bit with 1536 shaders with support for directx 11 with TDP of 195. Benchmark software we are using for testing Zotac GeForce GTX 980 and Palit GeForce GTX 680 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 7."