Geekbench Comparison: G4 vs G5 vs AMD64 vs P4 vs Xeon

On Geekpatrol.ca there is a comparison between…

1. Mac Mini 1.42 GHz
* 512 KB L2 cache
* 167 MHz system bus
* 1 GB DDR 333 SDRAM
2. iMac G5 2.1 GHz
* 512 KB L2 cache
* 700 MHz system bus
* 1.5 GB DDR2 533 SDRAM.
3. iMac Core Duo 1.83 GHz
* 2 MB L2 cache shared between cores
* 667 MHz system bus
* 1 GB DDR2 667 SDRAM.
4. iMac Core Duo 2.0 GHz
* 2 MB L2 cache shared between cores
* 667 MHz system bus
* 512 MB RAM DDR2 667 SDRAM
5. Power Mac G4 Dual 1.25 GHz
* 256 KB L2 cache per cpu
* 2 MB backside L3 cache per cpu
* 167 MHz system bus
* 1.75 GB DDR 333 SDRAM
6. Power Mac G5 1.6 GHz
* 512 KB L2 cache
* 800 MHz system bus
* 768 MB DDR 333 SDRAM
7. Power Mac G5 Dual 1.8 GHz
* 512 KB L2 cache per processor
* 900 MHz system bus
* 1 GB DDR 400 SDRAM.
8. Power Mac G5 Dual Core 2.0 GHz
* 1 MB L2 cache per core
* 1000 MHz system bus
* 2.5 GB DDR2 533 SDRAM
9. Power Mac G5 ‘Quad’ 2.5 GHz
* 1 MB L2 cache per core
* 1.25 GHz system bus
* 1.5 GB DDR2 533 SDRAM
10. AMD Athlon 64 3200+ (2.2 GHz)
* 512 KB L2 cache
* 800 MHz system bus
* 1 GB of DDR 400 SDRAM.
11. Intel Pentium 4c 2.4 GHz HT
* 512 KB L2 cache
* 800 MHz system bus
* 1 GB DDR 400 SDRAM
12. Intel Xeon Dual 3.2 GHz HT
* 1MB L2 cache per CPU
* 800 MHz system bus
* 1 GB DDR2 400 SDRAM

… using Geeckbench Preview: a opensource benchmark running on MacOSX and Windows by now.

I’m sure, these tests can’t be called “official” but… give an idea about performances of these processors/machines.