Looking At Tegra Xavier -- The Next-Gen Switch Chip

[Pemalite]

HoloDust said:

Soundwave said:

Nvidia is saying one Tegra Xavier chip at matches the Drive PX2, which is 2 Tegra X2s + 2 Pascal based GPUs (so 4 processors total) at 8 TFLOPS. 

Well, those Volta cores must be radically different then what GPUs have been packing for a long time - 512 cores with 2 operations per cycle for FP32 would need to run at insane clocks to achieve 8TFLOPS...as in 7500+ MHz insane.

For reference, made on similar, if not same 16nm proccess as advertised for Xavier, current nVidia tech needs 1920 cores running at 2000+ MHz for similar performance (overclocked GTX1070).

There are 4 chips remember. 2x Tegra SoC's each with 256 Cuda cores each and two pascal powered GPU's in an MXM form factor.

http://www.anandtech.com/show/9903/nvidia-announces-drive-px-2-pascal-power-for-selfdriving-cars

The image nVidia used had two Geforce 980 MXM cards.

The Geforce 980M has 1536 Cuda cores. So that would mean 3072 Cuda cores for the discreet GPU's. Then another 512 total with the two Tegra chips for a total of 3584 cuda cores.

Now 3584 Cuda cores * Instructions * Clock rate = flops.
3584 * 2 * 1125mhz = 8.064 Teraflops.

The overall package has a 250W TDP.

No way is a single Xavier chip matching that.