The HD3450 is better but not by much in raw performance. When you factor in Anti-Aliasing, sometimes the HD4330 is better. However, considering these are both entry-level Discrete GPUs their performance in games would not be all that great for modern titles. They would really just be Blu-Ray decoders in HTPCs, and in that case either can decode Blu-Ray
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The HD3450 is better but not by much in raw performance. When you factor in Anti-Aliasing, sometimes the HD4330 is better. However, considering these are both entry-level Discrete GPUs their performance in games would not be all that great for modern titles. They would really just be Blu-Ray decoders in HTPCs, and in that case either can decode Blu-Ray