In order to compare the results obtained by this card I suggest you take a look at the results we got in our recent review of the Sapphire Radeon HD 4770 with which we used the exact same test setup.
The above results from the benchmarking software speaks for itself, the ZOTAC AMP! 250 clearly offers an excellent performance, better that what we achieved with the HD 4770. This is especially clear in higher resolutions and with filters enabled.