Photos point to Nvidia GeForce GTX 1080 with gddr5x and GTX 1070 with gddr5

From online photos of the GP104 GPUs, which will probably be applied to the GTX 1080 and GTX 1070, it can be concluded that Nvidia opts for gddr5x on the top model. Just like the current generation of video cards, the GTX 1070 gets gddr5 memory.

Wccftech published the photo of the GP104-400 GPU. The chip is placed on a pcb and is accompanied by gddr5x memory chips from Micron. Earlier rumors spoke of a GTX 1080 with 8GB gddr5x memory and that now seems to be confirmed. In February, Micron announced that it would begin mass production of the new memory in the summer. According to the manufacturer, speeds of 13Gb/s were achieved with test chips. It is not yet known what speed the memory on the GTX 1080 will get.

Videocardz discovered that the leaked photo is a custom pcb. It would be a variant of MSI, because the placement of parts corresponds exactly to the pcb of an MSI GTX 980 4GB. It is likely that video card builders already have the new Pascal GPUs in their hands and are busy with the production of their new cards.

Comparison of leaked photo with an existing PCB from MSI. Image via Videocardz.com

An image of the GP104-200 GPU came out via Chiphell.com. This chip will probably find its way to the GeForce GTX 1070 cards. There is also a picture of the gpu on the pcb, showing the memory chips. Although the image is not very sharp, according to Videocardz, it is Samsung’s gddr5 memory with a capacity of 8GB.

The GP104-200 and GP104-400 have the same dimensions. Based on the size of the package, it is possible to calculate approximately how many transistors the GP104 contains. The chip is based on the GP100, of which the die dimensions and the number of transistors are known. According to the calculations, the GP104’s size is about 317mm2 and it has about 8 billion transistors. The entire GP100 GPU with 15.3 billion transistors is 610mm2 in size.

Presumably, the GP104 will get considerably higher clock speeds than the current generation of Maxwell video cards. The GP100 GPU gets a speed of 1328MHz and boost to 1480MHz on the Tesla P100 card for servers and workstations. The clock speed of Tesla cards for the professional market is generally lower than GeForce cards with the same GPU architecture.

Video card GTX 970 GTX 980 GTX 980 Ti GTX 1070 GTX 1080 Tesla P100

GPU	GM204	GM204	GM200	GP104	GP104	GP100
Process	28nm	28nm	28nm	16nm finfet	16nm finfet	16nm finfet
Transistors	5.2 billion	5.2 billion	8 billion	~8 billion	~8 billion	15.3 billion
Cudacores	1664	2048	2816	2048 (?)	2560 (?)	3584
base clock	1050MHz	1126MHz	1000MHz	nnb	nnb	1328MHz
boost clock	1178MHz	1216MHz	1075MHz	nnb	nnb	1480MHz
Vram	4GB gddr5	4GB gddr5	6GB gddr5	8GB gddr5	8GB gddr5x	16GB hbm2
Memory bus	256bit	256bit	384bit	256bit	256bit	4096bit
TDP	145W	165W	250W	nnb	nnb	300W

Probable specifications of GTX 1070 and GTX 1080

Nvidia is likely to announce its new GeForce cards at the end of May, just before the start of the Computex trade show in Taiwan. The video cards are expected to make their way to stores around June. The GTX 1080 with gddr5x memory may appear a little later, as Micron is planning to mass-produce this memory type for this summer.