Generally, some of the advantages of the Sony SLT A65 compared to pro digicam competitors include: it takes slightly higher resolution photos (24 MP vs 20 MP), much higher maximum light sensitivity (16,000 ISO vs 6,400 ISO), has a screen which flips out, has an external mic jack and has a much longer battery life (510 shots vs 330 shots).
However, on average it has a slightly lower resolution screen (921k dots vs 1,229k dots), is much larger (professional size (132×97×81 mm) vs compact (102×58×36 mm)), has worse image stabilization (sensor shift vs lens), is older (august 2011 vs june 2013) and is thicker (3.2" vs 1.4").
Sony Cyber-shot DSC-RX100 II
1 year newer
$598
Significant advantages of the DSC-RX100 II (vs the SLT A65)
Significant disadvantages of the DSC-RX100 II (vs the SLT A65)
common strengths of the DSC-RX100 II and SLT A65
Sony Cybershot DSC-RX100
9 months newer
$403 - $448
Significant advantages of the DSC-RX100 (vs the SLT A65)
Significant disadvantages of the DSC-RX100 (vs the SLT A65)
common strengths of the DSC-RX100 and SLT A65