I have to classify this as a rumor, but the info available sums up to the idea that Nvidia will be releasing a GeForce GTX 980 Ti that has 3072 Shader Cores and 6GB of GDDR5.
That means it will be based on Big-Maxwell aka GM200 that currently resides in the Titan X released last week. If true then this would be an awesome release. 6GB (384-bit) is plenty enough and the GPU more than fast enough. There is one more speculation, the card would be FASTER clocked compared to the Titan X, by 10%.
So if AMD releases something upcoming summer, they know what they can expect from Nvidia. Btw being a non Titan model, board partners should be able to com up with their own designs and factory overclocks as well.
| Nvidia | GeForce GTX Titan X | GeForce GTX 980 Ti | GeForce GTX 980 | GeForce GTX 970 | GeForce GTX 960 |
| Architecture | Maxwell | Maxwell | Maxwell | Maxwell | Maxwell |
| GPU | GM200 | GM200 | GM204 | GM204 | GM206 |
| Die Size | 601mm2 | 601mm2 | 398mm2 | 398mm2 | 228mm2 |
| Process | 28nm | 28nm | 28nm | 28nm | 28nm |
| Shader Cores | 3072 | 3072 | 2048 | 1664 | 1024 |
| Texture Units | 192 | 192 | 128 | 104 | 64 |
| ROPs | 96 | 96 | 64 | 64 | 32 |
| Base Clock | 1002 MHz | ~1126 MHz | 1126 MHz | 1051 MHz | 1126 MHz |
| Boost Clock | 1089 MHz | ~1216 MHz | 1216 MHz | 1178 MHz | 1178 MHz |
| Graphics Memory | 12 GB GDDR5 | 6 GB GDDR5 | 4 GB GDDR5 | 4 GB GDDR5 | 2 GB GDDR5 |
| Memory Bus | 384-bit | 384-bit | 256-bit | 256-bit | 128-bit |
| Memory Clock | 7.0 GHz | 7.0 GHz | 7.0 GHz | 7.0 GHz | 7.0 GHz |
| Memory Bandwidth | 336.0 GB/s | 336.0 GB/s | 224.0 GB/s | 224.0 GB/s | 112.0 GB/s |
| TDP | 250W | 250W | 165W | 145W | 120W |
| Power Connectors | 8+6 Pin | 8+6 Pin | Two 6-Pin | Two 6-Pin | One 6-Pin |
| Pricing | $999 US | $699 ? | $549 US | $329 US | $199 US |
GeForce GTX 980 Ti has 3072 CUDA Cores and 6GB of GDDR5
