そのベンチおかしい
10.8.3 i3-3225 HD4000 H61 メモリ→1333MHzでも

CPU Test 269.61
　　GCD Loop 290.96 15.34 Mops/sec
　　Floating Point Basic 258.61 6.14 Gflop/sec
　　vecLib FFT 180.84 5.97 Gflop/sec
　　Floating Point Library 499.38 86.96 Mops/sec
Memory Test 622.67
　　System 676.54
　　 Allocate 2607.82 9.58 Malloc/sec
　　 Fill 455.65 22154.67 MB/sec
　　 Copy 538.73 11127.30 MB/sec
　　Stream 576.75
　　 Copy 567.73 11726.17 MB/sec
　　 Scale 557.98 11527.76 MB/sec
　　 Add 596.73 12711.62 MB/sec
　　 Triad 586.14 12539.03 MB/sec
Quartz Graphics Test 527.23
　　Line 573.59 38.19 Klines/sec [50% alpha]
　　Rectangle 692.61 206.78 Krects/sec [50% alpha]
　　Circle 478.80 39.03 Kcircles/sec [50% alpha]
　　Bezier 456.81 11.52 Kbeziers/sec [50% alpha]
　　Text 495.35 30.99 Kchars/sec
OpenGL Graphics Test 264.98
　　Spinning Squares 264.98 336.14 frames/sec
User Interface Test 419.65
　　Elements 419.65 1.93 Krefresh/sec