The upcoming Galaxy S8 and Galaxy S8 Plus are both expected to be running either Exynos 8895 SoC or Snapdragon 835 chipsets, depending on the region. Both chipsets are rumoured to bring quite a performance bump over its predecessors, but none of the early benchmarks showed that big improvements.
The Galaxy S8 Plus variant powered by Snapdragon chipset now appeared on Geekbench, and judging by the results, it doesn't look very impressive. A lot can change with retail model, but the chipset was clocked at 1.9 GHz and scored 1,929 in a single-core and 6,084 in a multi-core tests. For comparison, Huawei Mate 9 scores around 1,900 and 6,100, while Apple's iPhone 7 Plus destroys both models in a single-core test, where it scores around 3,500.