Tyvärr har de inte tillåtelse att publicera några benchmarks, men de skriver ändå lite om prestandan:
"Because X1800XT Crossfire and The RD580 chipset have not yet officially launched, ATI has asked that we not publish hard benchmarks of our results, since they will likely change in final release versions. We can, however, talk in general terms about performance. Those of you who believe ATI is far behind nVidia are in for a surprise."
Läs artikeln om RD580 hos Anandtech.