This paper reports an exploratory study of the impact of post-editing and translation task execution in the Portuguese-Chinese language pair as performed by professional translators. Eye-tracking and key-logging data were used to assess temporal, technical and cognitive measures related to the understanding of two Portuguese source texts and the production of two Chinese target texts. The results point to no impact of task type on overall temporal effort, but indicate an impact on the cognitive effort related to source-text understanding and on technical effort related to target-text production. The study contributes to the body of knowledge in translation process research by providing results involving a logographic language, Chinese, which, so far, has been barely studied in the field.