Nvidia Reveals GTX 1080 and 1070 – Both Beat Titan X

Posted by at 7:56 pm on May 6, 2016

Nvidia has finally revealed the details of its highly anticipated next-generation graphics GPUs. Nvidia CEO Jen-Hsun Huang first revealed the roadmap for Pascal in March of 2014. It’s been a long wait, but based on what we learned tonight, it looks like the wait was worth it.

GTX 1080 And GTX 1070

The star of the show is Nvidia’s GTX 1080, which features 7.2 billion transistors and 2560 CUDA cores operating at an unbelievable 2.1 GHz. Nvidia said the card delivers 9 TFlops of rendering performance. The GTX 1080 is Nvidia’s first graphics processor to use TSMC’s 16nm FinFET process node. The smaller process node is a key element to Pascal’s power efficiency, but Jen-Hsun Huang, Nvidia’s CEO, said there were thousands of improvements and innovations, and billions of dollars in research and development that went into designing Pascal.

Nvidia said that the GTX 1080 offers two times the performance of the company’s current flagship Titan X, while delivering three times the power efficiency. AMD will also be moving to a smaller FinFET node process for its upcoming Polaris GPUs later this summer, but it will be moving to GlobalFoundaries’ even smaller 14nm process. We’re eager to compare the power efficiency of the two products in the coming months, but Nvidia has certainly set the bar high with Pascal.

Huang also announced the GTX 1070, which also offers staggering performance. Nvidia did not reveal the number of CUDA cores or transistors that make up the GPU in the 1070, but Huang said the card offers 6.5 TFLOPS of floating point performance, and that this card will outperform a Titan X, as well.

nvidia-launch-event-7_w_450

GDDR5X

Last year, AMD launched its R9 Fury series featuring Fiji GPUs, which featured HBM memory with much higher memory bandwidth than traditional GDDR5. Nvidia chose to skip the first generation of HBM memory, but the roadmap it shared at GTC 2015indicated that we would see 3D memory on Pascal. We somewhat expected to see HBM2 paired with these upcoming cards, but neither of them feature this advanced memory technology. We will likely still see HBM2 memory paired with a Pascal architecture GPU, but we may be waiting some time for that.

GDDR5X is the next fastest memory available compared to HBM; Micron revealed GDDR5X in September 2015. The company told us that GDDR5X offers significant performance increases by doubling the memory prefetch size. Micron said that initial GDDR5X yields would offer speeds of at least 10 Gbps. Nvidia said that the GTX 1080 is equipped with 8GB of GDDR5X memory, but it did not mention the frequency at which it operates. The GTX 1070 is also equipped with 8GB of memory, but it’s not using GDDR5X. Nvidia chose to use traditional GDDR5 with the lower-end card.

 

VR

For VR rendering, Nvidia takes this idea even further. It dedicates four view ports per eye for an HMD and prewarps the image before hitting the lenses. The end result is a clearer image with more accurate proportions. Nvidia calls this Lens Matched Shading.

NVIDIA GeForce GTX 1080 NVIDIA GeForce GTX 980 Ti NVIDIA GeForce GTX 1070 NVIDIA GeForce GTX 980 NVIDIA GeForce GTX 970
Graphics Core GP104 GM200 GP104 GM204 GM204
Process Node 16nm FinFET 28nm 16nm FinFET 28nm 28nm
Transistors 7.2 Billion 8 Billion ? 5.2 Billion
CUDA Cores 2560 CUDA Cores 2816 CUDA Cores ? 2048 CUDA Cores 1664 Cuda Cores
VRAM 8 GB GDDR5X 6 GB GDDR5 8 GB GDDR5 4 GB GDDR5 4GB GDDR5
Launch Date May-16 May-15 Jun-16 Sep-14 Sep-14

Today’s announcement is simply a reveal of what’s to come. The GTX 1080 will launch on May 27, and there will be two variants: the GTX 1080, which will carry a price tag of $599, and a Founders Edition, which is supposed to offer higher overclocking potential for $699. The GTX 1070 will launch on June 10. The standard card will sell for $379, and the Founder Edition will be available for $449.

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