
NVIDIA has officially introduced (paper-launch) the first gaming GeForce based on the new Pascal GP104 GPU architecture: the GeForce GTX 1080 and GTX 1070. Few weeks ago, NVIDIA introduced the GP100 GPU with the Tesla P100 compute card. The GP100 GPU is the full version of the Pascal architecture while the GP104 is a cut down version for gaming cards.
Here are the new features brought by the GTX 1080:
- new Pascal architecture built on TSCM 16nm FinFET.
- GPU Boost 3.0 that brings more functionnalities than previous GPU Boost 2.0.
- first card to support new GDDR5X graphics memory. The Pascal GPU GP104 supports both new GDDR5X and old GDDR5 memory. Cheaper cards like the GTX 1070 will have GDDR5 memory modules.
- support of DisplayPort 1.3 and 1.4 standards. DisplayPort 1.4 allows 4k @ 120Hz
- new SLI technology called SLI HB (High Bandwidth)
GTX 1080 Main Features
- GPU: Pascal GP104-400 @ 1607MHz (base clock) and 1733MHz (boost clock), 16nm FinFET, 7.2 billion transistors
- CUDA cores: 2560 (or 40 Streaming Multiprocessors, 64 CUDA cores per SM)
- FP32 performance: 8.9 TFLOPS (boost clock).
- Texture units: 160
- ROP units: 64
- Memory: 8GB GDDR5X, clock: 1250MHz real speed or 10000MHz effective speed, memory interface width: 256-bit
- TDP: 180W
- Power connectors: one 8-pin

The GTX 1080 should be 20% faster than the GTX 980 Ti.
GTX 1070 Main Features
- GPU: Pascal GP104-200 @ 1506MHz (base clock) and 1683MHz (boost clock), 16nm FinFET, 7.2 billion transistors
- CUDA cores: 1920 (or 30 Streaming Multiprocessors, 64 CUDA cores per SM)
- FP32 performance: 6.5 TFLOPS (boost clock).
- Texture units: 120
- ROP units: 64
- Memory: 8GB GDDR5, clock: 2000MHz real speed or 8000MHz effective speed, memory interface width: 256-bit
- TDP: 150W
- Power connectors: one 8-pin
The GeForce GTX 1080 will be launched on May 27 2016 with a recommended price of USD $599 while the GTX 1070 will be launched on June 10 2016 with a recommended price of USD $379.
UPDATE (2016.05.17)
This screenshot from 4gamer.net shows the CUDA support level of the GTX 1080. (the GP104 supports CUDA compute capability 6.1).

GTX 1070 will be launched on June 10 2016 probably, not 2015 :p
Thanks 😀
So i guess no HBM for Nvidia right?
HBM2 seems to be reserved for the full Pascal GPU, the GP100: http://www.geeks3d.com/20160405/gtc-2016-nvidia-pascal-gp100-gpu-and-tesla-p100-computing-platform-announced/. Maybe a GeForce based on the full GP100 like a GTX 1080 Ti could be available with HBM2.
http://www.4gamer.net/games/251/G025177/20160517060/SS/055.jpg
GP104 is Compute Capability 6.1.
GTX 1070 around the corner
http://www.pcworld.com/article/3071656/components-graphics/confirmed-by-nvidia-official-geforce-gtx-1070-tech-specifications-leak.html
I’ve been sneaking around for other Pascal GPUs and found these
SKU’s in production:
GP100-A01P / GP100-VSXB-24-A1-5X
GP104-200-A1 / GP104-PS-NB
GP104-200-A1 / GP104-PS-DT / GeForce GTX 1070
GP104-400-A1 / GP104-PS-DT / GeForce GTX 1080
GP104-725-A1 / GP104-PS-DT
GP104-750-A1 / GP104-PS-DT
GP104-985-A1 / GP104-QS-9XX
SKU mentioned on rumor sites
GP104-150-A1 / ???
http://www.hardocp.com/images/articles/1463427458xepmrLV68z_2_15_l.gif
http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080/images/features3.jpg
Pascal GPU family is the world’s first discrete GPU family to support HEVC Main12 hardware decoding, improved from GM206(GTX 960/GTX 950)’s Main10/Main hardware decoder.
VP9 hardware decoding also supported like GM206(GTX 960/GTX 950).
http://www.geforce.com/hardware/10series/geforce-gtx-1070
Nvidia GeForce GTX 1070 specs released.
http://international.download.nvidia.com/geforce-com/international/pdfs/GeForce_GTX_1080_Whitepaper_FINAL.pdf
http://www.nvidia.com/download/driverResults.aspx/103610/en-us
http://www.nvidia.com/download/driverResults.aspx/103608/en-us
Nvidia GeForce 368.25 WHQL driver for GTX 1080.