Re:Performance (Xbench) and Apple's claim of 7x sp (Score 1)

Yea here is my Xbench results and I see nothing that is 7x faster. I have the last generation 1.67 15" powerbook. with the optional 7200rpm 100gb drive(which is at 90% capacity). Also i only have 1.5gb mem.

Results 44.90
        System Info
                Xbench Version 1.3
                System Version 10.4.8 (8L127)
                Physical RAM 1536 MB
                Model PowerBook5,8
                Processor PowerPC G4 @ 1.67 GHz
                        L1 Cache 32K (instruction), 32K (data)
                        L2 Cache 512K @ 1.67 GHz
                        Bus Frequency 167 MHz
                Video Card ATY,RV360M11
                Drive Type Hitachi HTS721010G9AT00
        CPU Test 68.41
                GCD Loop 100.07 5.27 Mops/sec
                Floating Point Basic 43.09 1.02 Gflop/sec
                AltiVec Basic 250.02 9.96 Gflop/sec
                vecLib FFT 77.43 2.55 Gflop/sec
                Floating Point Library 43.53 7.58 Mops/sec
        Thread Test 66.58
                Computation 62.63 1.27 Mops/sec, 4 threads
                Lock Contention 71.06 3.06 Mlocks/sec, 4 threads
        Memory Test 28.58
                System 24.63
                        Allocate 140.09 514.47 Kalloc/sec
                        Fill 29.59 1438.94 MB/sec
                        Copy 12.36 255.37 MB/sec
                Stream 34.04
                        Copy 33.48 691.42 MB/sec [altivec]
                        Scale 38.75 800.54 MB/sec [altivec]
                        Add 32.74 697.46 MB/sec [altivec]
                        Triad 31.96 683.74 MB/sec [altivec]
        Quartz Graphics Test 57.07
                Line 52.75 3.51 Klines/sec [50% alpha]
                Rectangle 60.75 18.14 Krects/sec [50% alpha]
                Circle 60.27 4.91 Kcircles/sec [50% alpha]
                Bezier 63.29 1.60 Kbeziers/sec [50% alpha]
                Text 50.50 3.16 Kchars/sec
        OpenGL Graphics Test 72.88
                Spinning Squares 72.88 92.45 frames/sec
        User Interface Test 34.71
                Elements 34.71 159.28 refresh/sec
        Disk Test 32.03
                Sequential 53.80
                        Uncached Write 59.03 36.24 MB/sec [4K blocks]
                        Uncached Write 43.15 24.41 MB/sec [256K blocks]
                        Uncached Read 57.90 16.95 MB/sec [4K blocks]
                        Uncached Read 58.95 29.63 MB/sec [256K blocks]
                Random 22.80
                        Uncached Write 7.62 0.81 MB/sec [4K blocks]
                        Uncached Write 53.02 16.97 MB/sec [256K blocks]
                        Uncached Read 72.48 0.51 MB/sec [4K blocks]
                        Uncached Read 86.60 16.07 MB/sec [256K blocks]