You cant play 3DMark. Synthetic tests dont tell you how games play. What comparisons do you need? I'll ask again, what will it achieve? The benchmark tests throughput under different scenarios. Changing the res wont change how fast a card is. 3DMark doesnt use enough video ram to show off high end cards either, so its not a be all, end all test suite in many ways. It does NOT accurately simulate how a game will play, this is why we have game benchmarks. Games vary wildly in their fps, a single benchmark result cannot possibly reflect this.