#MAC POWERBOOK G4 SPECS 1GHZ PC#
However, I would be interested to see how the comparisons work out where identical hard disk models are used.Ĭomparing recent IDE drives with large caches and independent intelligence (formerly only seen in hi-spec SCSI models) being compared to drives a few years old … really could predispose a comparison to a particular result.ĭude, Intel sells processors to almost every PC OEM in the world. In other words it hits the CPU harder than some DBMS that one could name and is therefore likely to reflect increases in CPU speed more sharply.īeyond those factors it should be born in mind that the bottleneck for most DBMSes, most of the time, is not the CPU but rather the performance of the hard disk systems (which are not as simplistic as we all sometimes quote). Secondly, PostgreSQL is more of a sophisticated DBMS rather than a SQL veneer over ISAM. (Undoubtedly recent x86 chips also represent a significant improvement). The PostgreSQL performance hike is less surprising than it might be.Ĭonsider firstly that GCC for x86 is far more heavily optimized than for PPC by a considerable margin. They are about x2 x3 slower compared to when the power cable is plugged in to the laptop (off course I can disable that, but I would like to conserve power). Stream Triad 2 (1 thread, 35.99 megabytes/sec) Stream Add 3 (1 thread, 52.27 megabytes/sec)
Stream Scale 7 (1 thread, 101.6 megabytes/sec) Stream Copy 7 (1 thread, 104.6 megabytes/sec) Stdlib Copy 10 (1 thread, 80.06 megabytes/sec) Stdlib Write 8 (1 thread, 137.6 megabytes/sec) Stdlib Allocate 49 (4 threads, 39.06 kiloallocs/sec) Stdlib Allocate 23 (1 thread, 18.26 kiloallocs/sec) Write Sequential 28 (1 thread, 165.9 megabytes/sec) Read Sequential 13 (1 thread, 96.74 megabytes/sec)
Latency 50 (1 thread, 206.4 nanoseconds/load) Mandelbrot 20 (4 threads, 144.7 megaflops) Mandelbrot 10 (1 thread, 72.79 megaflops) Some of the things are more than 10x slower than the Intel PowerMac…Īnd here are the results without Power-cable plugged in (less Mhz, although the GeekBench still reports 933Mhz)Įmulate 6502 11 (1 thread, 20.3 megahertz)Įmulate 6502 23 (4 threads, 43.39 megahertz)īlowfish 37 (1 thread, 52.23 megabytes/sec)īlowfish 53 (4 threads, 81.75 megabytes/sec)īzip2 Compress 11 (1 thread, 2.06 megabytes/sec)īzip2 Compress 21 (4 threads, 3.99 megabytes/sec)īzip2 Decompress 13 (1 thread, 5.608 megabytes/sec)īzip2 Decompress 22 (4 threads, 9.636 megabytes/sec) Stream Triad 4 (1 thread, 61.5 megabytes/sec) Stream Add 4 (1 thread, 67.25 megabytes/sec) Stream Scale 10 (1 thread, 147.3 megabytes/sec) Stream Copy 10 (1 thread, 152.8 megabytes/sec) Stdlib Copy 12 (1 thread, 97.36 megabytes/sec) Stdlib Write 10 (1 thread, 163.1 megabytes/sec) Stdlib Allocate 61 (4 threads, 47.9 kiloallocs/sec) Stdlib Allocate 34 (1 thread, 26.96 kiloallocs/sec) Write Sequential 35 (1 thread, 207.5 megabytes/sec) Read Sequential 17 (1 thread, 126.7 megabytes/sec) Latency 67 (1 thread, 155 nanoseconds/load) Mandelbrot 24 (4 threads, 168.1 megaflops) Mandelbrot 17 (1 thread, 119.7 megaflops) geekbenchĬompiler: GCC 4.0.1 (Apple Computer, Inc. MalkiaBook:~/Desktop/Geekbench Preview 2 malkia$.
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