The GTX 1080 Ti may have 10GB of VRAM

The GTX 1080 Ti may have 10GB of VRAM

| Source: Videocardz Author: Mark Campbell

The GTX 1080 Ti may have 10GB of VRAM

Nvidia's GTX Titan class GPUs always come with huge price tags and the Pascal GTX Titan X is no different, costing $1200 in the US. GTX Titan series GPUs have never been about Value for money, but they have always resulted in lower end GTX variants like the GTX 780Ti or GTX 980Ti that provide gamers with relatively good value for money.

Ever since the GTX Titan X launched the big question on consumers lips was "where is the GTX 1080Ti", knowing that a more affordable variant is in the works.

Now, a Nvidia GPU that is thought to be the GTX 1080 Ti has been found in an Indian shipping manifest, with the GPU sporting 10GB of VRAM and a 384-bit memory bus, suggesting that this GPU is more powerful than Nvidia's GTX 1080.

When looking at Nvidia's previous GTX Titan GPUs one trend is clear, that the lower priced Ti variant of every Titan GPU has half of the VRAM of its Titan equivalent. The GTX 780Ti had 3GB of VRAM compared to the 6GB on the Titan Black and the GTX 980Ti had 6GB compared to the Original GTX Titan X's 12GB.

Today's Titan has 12GB of GDDR5X VRAM and simply halving it would result in a GTX 1080 Ti that had 6GB of VRAM, something that Nvidia would simply not release given the fact that their GTX 1080 has 8GB of VRAM. With the GTX Titan series always having a VRAM capacity lead over their desktop counterparts we expect the GTX 1080Ti to have either 10GB of GDDR5X VRAM, using a cut-down memory bus to allow for the GPUs lower VRAM capacity.

In order for the GTX 1080Ti to have less VRAM than the GTX Titan X but more than the 1080 Nvidia will need to use a smaller memory bus size, changing their 384-bit memory bus to a 320-bit memory bus, allowing Nvidia to use fewer VRAM chips and create a hypothetical 10GB GTX 1080Ti.

This decrease in memory bus size will also result in a decrease in overall memory bandwidth, lowering the total memory bandwidth from 480GB/s down to 400GB/s.

GTX Titan X Hypothetical GTX

1080Ti (GDDR5X) GTX 1080 GTX 1070 GTX 1060 GPU Architecture Pascal Pascal Pascal Pascal Pascal Process node 16nm 16nm 16nm 16nm 16nm SM Units 56 52-46 40 30 20 Cores per SM 64 64 64 64 64 SP FP Performance 11 TFLOPs - 9 TFLOPs 6.5 TFLOPs 4.4TFLOPS CUDA Core Count 3584 3328-2944 2560 1920 1280 VRAM Type GDDR5X GDDR5X GDDR5X GDDR5 GDDR5 VRAM Cappacity 12GB 10GB 8GB 8GB 6GB Memory Bus Size 384-bit 320-bit 256-bit 256-bit 192-bit Memory Bandwidth 480 GB/s 400GB/s 320 GB/s 256 GB/s 192 GB/s Base clock speed 1417MHz - 1607MHz 1506Mhz 1506MHz Boost clock speed 1531MHz - 1733MHz 1683MHz 1708MHz TDP 250W - 180W 150W 120W Power Connection 1x 8-pin 1x 6-pin 1x 8-pin 1x 6-pin 1x 8-pin 1x8-pin 6-pin PCI Express PCIe 3.0 PCIe 3.0 PCIe 3.0 PCIe 3.0 PCIe 3.0

Right now we have no idea if or when Nvidia plan on releasing their GTX 1080 Ti GPU, though we do expect Nvidia to release something in response to AMD's upcoming Vega powered GPUs in early 2017.

You can join the discussion on Nvidia's GTX 1080 Ti on the OC3D Forums.

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