The 4K Multi-GPU Challenge
Custom PC|April 2017
The 4K Multi-GPU Challenge

Ben Hardwidge pairs up two Zotac GTX 1070 cards to see if they can properly handle 4K gaming.

Nvidia might have inadvertently revealed its plans for a GeForce GTX 1080 Ti on LinkedIn before Christmas,but there’s still no sign of it in the official world,which means anyone who wants to run 4K games on a single GPU really needs a Titan X.Which would be all fine and dandy, of course,if a Titan X didn’t cost £1,099 inc VAT, which I think we can all agree is a silly price for a graphics card. There’s potentially another route to 4K gaming,though,using a pair of GTX 1070 cards in SLI configuration.

GeForce GTX 1070 cards currently start at £396 inc VAT for a mini Zotac card from,meaning you can potentially get proper 4K gaming performance for under £800,saving you over £300 from the cost of a Titan X and potentially giving you a faster setup in some games too.Nvidia’s GeForce GTX 1070 and 1080 cards are pretty powerful on their own anyway – they can even manage playable frame rates at 4K in some games in single-GPU configurations – but if you want smooth frame rates at 4K in all games,we reckon you’ll need two of them.

To help us find out how well a pair of GTX 1070 cards can cope with 4K gaming,Zotac sent us two of its AMP! Extreme Edition cards.These cards cost £424 inc VAT each from,making for a total price of £251 inc VAT for an SLI setup.These monstrous three-slot cards feature 1632MHz core clocks (compared to the 1506MHz stock frequency),and boost to 1835MHz.They even have overclocked memory,running at 8208MHz (effective), adding 200MHz (effective) to the stock frequency.Each card has a backplate,and the massive cooling block features six heatpipes with loads of aluminium fins, plus three 90mm fans.


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April 2017