This seems to contradict the rumors that we have heard to date, not to mention it would seem like Samsung could be shooting themselves in the foot if they were to release such a device as well. However according to the source who revealed the benchmark results, the benchmark was conducted on a “sample” apparently, a test device of sorts which are distributed to carriers for testing ahead of release, so chances are we might still see a QHD display upon its official announcement.
Alternatively the benchmarks could also be for one of the multiple Galaxy S5 variants that we have been hearing about which might not necessarily pack the same specs as the flagship phone, but shares its name (like what Samsung did with the Galaxy S4 Active and Galaxy S4 Zoom). In any case MWC is around the corner so hopefully we will learn more about the Galaxy S5 then.