In milk stage and maturity stage, Chlorophyll content of PGR4 treatment was the highest and had a minimum magnitude of decrease, and PGR3 treatment took second place.

早稻在乳熟期、腊熟期两次测定的叶绿素含量时均以PGR4处理为最高，PGR3处理次之。

youdao

I'm not sure if I agree with all the points however, since they seem to assume most games run at 60fps, which while some early 360 games have (DOA4, NBA 2K6), some have not (PGR3).

ENGADGET: Major Nelson asks what's best for gaming? 720p, 1080i or 1080p