On Fri, Aug 22, 2008 at 8:34 PM, John R Pierce <pierce at hogranch.com> wrote: > Lanny Marcus wrote: >> >> Question: How do I >> determine whether or not the CPU in this box (I think it's an Intel >> Celeron 2.6 GHz) supports SSE2 or not? I suspect the CPU does *not* >> support SSE2. > > this gets fun. AFAIK, there's several generations of Celerons and its quite > frustrating to tell them apart from purely a clock speed. > > The original Celerons were based on cache reduced P2 Deschutes, and later P3 > Coppermine, these had 66Mhz busses, and used socket 370 (or even Slot 1 for > the oldest versions). These had MMX and/or SSE depending on the age. > > there were Celerons from 2.0 to 2.8Ghz that were 478 pin 400Mhz FSB, and P4 > "Northwood" generation technology. I do believe these are SSE2 but I'm > having trouble finding definitive documentation of this. > > there are also Celeron "D" that are Prescott and can be either socket 478 or > LGA775 and run from 2.13 up to 3.33Ghz, using a 533Mhz FSB, these have SSE3. > > and nowdays, there are celerons that are based on Core.... really really > confusing. John: Thank you for the above explanation! As I just posted, in my reply to Bill, the CPU has a flag for SSE2. I suspect that means that the chip does support SSE2. If so, the latest version of Google Earth wouldn't run properly on it. Lanny