The architecture ofc should also be considered but that's harder to measure. I'm just taking the specs at face value for now. I'd say they'd probably perform closely. The HD 7750 ddr3 is also comparable to the R7 250 ddr3 specs-wise, and if you look around you'll find an A10-7800 bench and R7 250 ddr3 bench using BF4 at 720p, with both averaging at 45+ FPS. It shouldn't be too far-fetched to assume the R7-7800 would perform similarly to a R7 250 ddr3 or HD 7750 ddr3.
ito magandang sagot... 7750 dual graphic. eh akin nga richland CPU nakaka dual graphics sa HD 7750.