[320P 480I 480P P720全面测试]

这里我们降低了负载，采用更低分辨率画质的H.264编码的回放。片源选择了ICE AGE 2的宣传片，Quiketime格式，H.264编码，分别为320P、480I、380P、720P。

[H.264 320P]

X1800XT with Catalyst 5.12

X1800XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1600XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1300Pro with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X850XT PE with Catalyst 5.12

X850XT PE with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X700 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X550 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

[H.264 480I]

X1800XT with Catalyst 5.12

X1800XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1600XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1300Pro with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X850XT PE with Catalyst 5.12

X850XT PE with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X700 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X550 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

[H.264 480P]

X1800XT with Catalyst 5.12

X1800XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1600XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1300Pro with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X850XT PE with Catalyst 5.12

X850XT PE with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X700 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X550 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

[H.264 720P]

X1800XT with Catalyst 5.12

X1800XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1600XT with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X1300Pro with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X850XT PE with Catalyst 5.12

X850XT PE with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X700 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

X550 with Catalyst 5.13+Cyberlink H.264/AVC Decoder(ATi)

整体看来，硬件加速或软件优化的效果都没能得以明显体现。不过这也在令一方面说明，针对低画质下，加速也并不突出，也就是说现在的瓶颈不会来自于显卡的硬件，主要原因是驱动及解码的支持。看来ATi对于H.264硬件解码的方面还有很多工作要做，当前的技术还是不能令人满意的。