The final specifications and the architectural details regarding the GM204 GPU fused inside NVIDIA’s next generation and flagship Maxwell graphics card, the GeForce GTX 980 have been revealed by Videocardz. NVIDIA’s GeForce GTX 980 and GeForce GTX 970 launch in just three days on Friday but we have already started looking at preliminary performance results, several non-reference graphics cards from AIB vendors along with tons of new information regarding these chips.
NVIDIA GeForce GTX 980 Graphics Card and GM204 GPU Detailed
Starting with the GM204 GPU which makes use of the second generation Maxwell core architecture that has faster per core performance than first generation Maxwell based chips (GM107) before it and has several new features which deliver better performance and great power efficency making GeForce GTX 980 one of the most efficient flagship offering in history. This is all achieved with the 28nm process node so one can imagine about the numbers we can expect when NVIDIA hops to an even lower process in the future. However, people are still worried about the fact that not being on a 20nm process doesn’t make the GTX 980 as a worthy contender to the Kepler architecture but that’s not true since the card has achieved some great feats and we will be able to see that in the performance reviews which arrive this weekend.
Alright, so the GM204 has two variants, the GM204-400 which is fused on the GeForce GTX 980 and the GM204-200 which is fused on the GeForce GTX 970. We know a lot about the GeForce GTX 970 since a few weeks now but the real flagship part to be discussed is the GeForce GTX 980’s GM204-400 chip. The GM204 chip features 4 GPC (Graphics Processing Clusters) which feature four SMM blocks each. These blocks include four logic units each which consist of 32 cores so in total, a single SMM unit results in 128 Cores while the 16 blocks available on the GM204-400 chip equate to 2048 CUDA Cores. The GM204-200 has three less SMM units which result in a lower core count of 1664 thus making it around as fast as the GeForce GTX 780 while the GTX 980 will tackle the GeForce GTX 980 with a good 15-20% performance lead.