Coming to manual overclocking, this is a key area for all 1070 Tis – with the right overclock, a 1070 Ti should perform very similarly to a GTX 1080.
My best overclock came with power and temperature sliders maximised, fans at 100%, +175MHz to the GPU core and +550MHz to the memory. In practice, this meant the card's frequency hovered around the 2GHz mark, flitting between 2004-2030MHz. At stock settings, it would stabilise at around 1830MHz.
To find out the benefit of this overclock, I re-ran all of our games at 4K resolution, as well as Fire Strike and Fire Strike Ultra.
As you can see above, an overclocked Palit Super JetStream essentially delivers stock GTX 1080 performance. It nudges ahead in some tests, falls just behind in others – but looking at the big picture, the margin of difference is very small.
With the shortage of GDDR5X, I’m wondering if the GTX 1080 is being phased out, because this is (95% of) a GTX 1080 GDDR5. Maybe the endgame is for the 1080 to be discontinued, the GP104s going into 1070 Ti instead, and the GDDR5X to be saved for the 1080 Ti and possibly mid-range Volta cards if the early flagships use GDDR6?