Galaxy Tab 7.0 Plus sports Exynos instead of Tegra 2
That is a good thing. So far the vast majority of Honeycomb devices have used NVIDIA’s Tegra 2 Software on Chip that has run relatively smoothly. Samsung devices and phones have started to run the Exynos SoC though that is blazing fast, just check out the Galaxy S II for evidence of that.
AnandTech.com goes into much more detail on what this means on a technical level, but just know that the Galaxy Tab 7.0 Plus should be more capable than the 10.1 and 8.9.
Source: Anand Tech