On Geekpatrol.ca there is a comparison between…
- Mac Mini 1.42 GHz
- 512 KB L2 cache
- 167 MHz system bus
- 1 GB DDR 333 SDRAM
- iMac G5 2.1 GHz
- 512 KB L2 cache
- 700 MHz system bus
- 1.5 GB DDR2 533 SDRAM.
- iMac Core Duo 1.83 GHz
- 2 MB L2 cache shared between cores
- 667 MHz system bus
- 1 GB DDR2 667 SDRAM.
- iMac Core Duo 2.0 GHz
- 2 MB L2 cache shared between cores
- 667 MHz system bus
- 512 MB RAM DDR2 667 SDRAM
- 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
- Power Mac G5 1.6 GHz
- 512 KB L2 cache
- 800 MHz system bus
- 768 MB DDR 333 SDRAM
- Power Mac G5 Dual 1.8 GHz
- 512 KB L2 cache per processor
- 900 MHz system bus
- 1 GB DDR 400 SDRAM.
- Power Mac G5 Dual Core 2.0 GHz
- 1 MB L2 cache per core
- 1000 MHz system bus
- 2.5 GB DDR2 533 SDRAM
- Power Mac G5 ‘Quad’ 2.5 GHz
- 1 MB L2 cache per core
- 1.25 GHz system bus
- 1.5 GB DDR2 533 SDRAM
- AMD Athlon 64 3200+ (2.2 GHz)
- 512 KB L2 cache
- 800 MHz system bus
- 1 GB of DDR 400 SDRAM.
- Intel Pentium 4c 2.4 GHz HT
- 512 KB L2 cache
- 800 MHz system bus
- 1 GB DDR 400 SDRAM
- 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.