Home Memory PCI Express 3.0 vs. 2.0: Is There a Gaming Performance Gain?

PCI Express 3.0 vs. 2.0: Is There a Gaming Performance Gain?

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Conclusions

Our tests showed a clear result: on only one game (Dying Light) there was a significant performance gain by using PCI Express 3.0 instead of PCI Express 2.0. Even at it, the improvement was of only 7%. On the other hand, when we used the PCI Express 3.0 x4 slot, there was a loss of performance on most of the games.

Remember that we used a high-end video card, in a high-end system. Even we had not run tests on a more basic system, it is logical to think that, on a system with a lower video card performance, the impact of the bandwidth between the CPU and the GPU should be even smaller.

So, if you are looking for a video card, CPU or motherboard to buy, the presence or absence of the PCI Express 3.0 connection should not be a crucial factor do decide what to buy, at least on a single-GPU system.

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Rafael Otto Coelho is a physicist, a PhD student, and is a college professor in Brazil.