For the following performance tests the benchmarks were run a minimum of 5 times and the best 3 scores were averaged.

Test System Configuration

Processor: Intel Celeron 366
Memory 128 Megs PC-100 SDRAM
Hard Disk Drive IBM Deskstar 14GXP 10.1 Gig
Video Card Diamond Viper V770 Ultra 32 Megs
Operating System Windows 98 SE

Synthetic benchmarks such as Sandra 99 Pro, paint a very expected performance picture between the two speeds. Will this carry over to real world performance? Let's take a look:

As far as Windows real world performance is concerned, the Celeron at 605 Mhz clearly takes the lead over the Celeron at 550 Mhz. I was definitely able to feel the increased performance doing normal Windows tasks.