on 8-23-2008 12:08 PM Lanny Marcus spake the following:
Celerons in the last few years are usually just re-branded older generation chips so they can extend the manufacturing cycles of their silicon plants. Every new generation of chips is almost always followed by a new line of celerons with some crippling like smaller cache or clock speed locking based on a previous generations chip.On Fri, Aug 22, 2008 at 8:34 PM, John R Pierce <pierce-BRp9yk6zKL1Wk0Htik3J/w@xxxxxxxxxxxxxxxx> 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
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