Performance - 2-way SLI GPU - Futuremark 3DMark 2013

GeForce GTX 980 2-way SLI DX11: 3DMark 2013

3DMark includes everything you need to benchmark your hardware. With three all new tests you can bench everything from smartphones and tablets, to notebooks and home PCs, to the latest high-end, multi-GPU gaming desktops. And it's not just for Windows. With 3DMark you can compare your scores with Android and iOS devices too. Here (below) are 3DMark FireStrike results. Fire Strike is the new showcase DirectX 11 benchmark designed for high-performance gaming PCs.

So for SLI as well a 3DMark FireStrike result set. It's not a lot but sure, you can gain some points by upgrading to a faster PCIe slot. So as you can see the overall effect on the FireStrike score is present. From top to bottom a 267 point difference, so a modern PCIE gen 3.0 bus will get you a slightly higher score.