The Radeon HD 5750 is nothing but a slightly redimensioned version of the HD 5770, with less stream processors (80, more precisely), and lower frequencies: 700 Mhz for the GPU and 4600 MHz for the memories. It’s very hard not to compare this model to the HD 4770, starting from the fabrication process, the 128-bit memory bus and the frequencies.

It’s easy to expect, in that way, a similar behavior on the test, perhaps with slightly higher framerates, except for the cases in which the different amount of memory (512MB for the HD 4770 and 1GB for the HD 5750) can really make a difference.