NVIDIA GeForce GTX 980M and 970M to arrive very soon

Pre-order listing at webstores suggest the first laptops with NVIDIA's GeForce GTX 980M and GTX 970M graphics cards may hit the market starting October 7th. VideoCardz got its hands on some leaked details but the specifications are conflicting. One source claims the GTX 980M will have 2048 CUDA cores, 128 TMUs and 64 ROPS, while the other source claims the GTX 980M may have 1664 CUDA cores:

According to SweClockers, GeForce GTX 980M may have the same GPU configuration as its desktop variant. That said GTX 980M would have 2048 CUDA cores, 128 TMUs and 64 ROPs. What’s even more surprising is that GTX 980M would feature 8GB GDDR5 memory. Of course due to thermal constraints, clock speeds had to be reduced accordingly.

GeForce GTX 980M would be running at 1038 MHz / 1127 MHz for based and boost respectively. This is almost 100 MHz more than its predecessor. The biggest reduction had to be introduced to memory speed, thus GTX 980 would only have 5GHz clock (2GHz less than desktop).

It’s worth noting that SweClockers specs look very optimistic, in fact even Notebookcheck (pretty much the best source for mobile news), have different specs in their database. According to them GTX 980M would have 1664 CUDAs, while GTX 970M only 1280 (and, what’s interesting, shorter 192b bus). GTX 970M would therefore feature 6GB memory (which was confirmed by 3DMark database entries).

SweClockers also posted these Fire Strike score:
GTX 980M: 8292
GTX 880M: 6144
GTX 980: 11441
GTX 970: 9615

Leaked marketing slides from NVIDIA claim the GeForce GTX 980M offers double the performance of the GeForce GTX 680M and significant gains in energy efficiency.