what does it mean for a cpu to be rated at something?? lets say or example my old pc...it had an amd athlon 64 3400+2.21ghz...i did a system scan for requirements for 2142 and it said : amd athlon64 3400+2.21ghz rated @3.4ghz....so does this mean im really like playing with a 3.4 ghz cpu??
There is a long technical story about how Intel introduced a much longer pipeline in their P4 series which allowed them to crank up clock speeds (because of improved granularity splitting up long steps) however a faster clock is one thing, if you have a longer pipe as well that means that you wont see clock for clock improvements when compared with older and/or shorter pipelined chips (such as the P3 or Athlon series at the time).
So, since clockspeed sells chips to the un-informed better than any other figure, AMD with their short pipe were now handicapped in the sales stakes, despite the fact that their slower clocked (and shorted piped) cpus were able to do a similar amount of work as the much faster intels.
So some bright spark at AMD decided to invent a numbering series that was comparable with intels higher clocked longies and stopped using (slower) clockspeeds as the primary comparison. Thus your 3400 was AMDs way of saying that their 2.2ghx shortie pipe chip performed like an intel 3.4 gig long pipe P4.
Clear?
And to continue the story, while the P4 series used the longer pipe right up to the Pentuim D dualies, their mobile range contunied to be developed from the older short pipe P3 series (P3s were clock for clock comparable with AMD) which is where todays core duo was developed from, and which is why you see duo clockspeeds much lower than the P4 at the end of its life and now again AMD and Intel have short pipe main range chips.
There is a long technical story about how Intel introduced a much longer pipeline in their P4 series which allowed them to crank up clock speeds (because of improved granularity splitting up long steps) however a faster clock is one thing, if you have a longer pipe as well that means that you wont see clock for clock improvements when compared with older and/or shorter pipelined chips (such as the P3 or Athlon series at the time).
So, since clockspeed sells chips to the un-informed better than any other figure, AMD with their short pipe were now handicapped in the sales stakes, despite the fact that their slower clocked (and shorted piped) cpus were able to do a similar amount of work as the much faster intels.
So some bright spark at AMD decided to invent a numbering series that was comparable with intels higher clocked longies and stopped using (slower) clockspeeds as the primary comparison. Thus your 3400 was AMDs way of saying that their 2.2ghx shortie pipe chip performed like an intel 3.4 gig long pipe P4.
Clear?
And to continue the story, while the P4 series used the longer pipe right up to the Pentuim D dualies, their mobile range contunied to be developed from the older short pipe P3 series (P3s were clock for clock comparable with AMD) which is where todays core duo was developed from, and which is why you see duo clockspeeds much lower than the P4 at the end of its life and now again AMD and Intel have short pipe main range chips.
hth
rofl completely off topic but nice try =)
Actually, AMD runs there alot lower than Intel does.
IE: an AMD 4800+ is 2.4 GHz in each processor, so, togather its 4.8 Ghz.
Think of it this way, an AMD 1800+ chip is roughly the same performance wise as a P4 1.8 Ghz. The 4 numbers are commonly called PR numbers. Not all AMD CPUs chips have a 4 digit PR number.
There is a long technical story about how Intel introduced a much longer pipeline in their P4 series which allowed them to crank up clock speeds (because of improved granularity splitting up long steps) however a faster clock is one thing, if you have a longer pipe as well that means that you wont see clock for clock improvements when compared with older and/or shorter pipelined chips (such as the P3 or Athlon series at the time).
So, since clockspeed sells chips to the un-informed better than any other figure, AMD with their short pipe were now handicapped in the sales stakes, despite the fact that their slower clocked (and shorted piped) cpus were able to do a similar amount of work as the much faster intels.
So some bright spark at AMD decided to invent a numbering series that was comparable with intels higher clocked longies and stopped using (slower) clockspeeds as the primary comparison. Thus your 3400 was AMDs way of saying that their 2.2ghx shortie pipe chip performed like an intel 3.4 gig long pipe P4.
Clear?
And to continue the story, while the P4 series used the longer pipe right up to the Pentuim D dualies, their mobile range contunied to be developed from the older short pipe P3 series (P3s were clock for clock comparable with AMD) which is where todays core duo was developed from, and which is why you see duo clockspeeds much lower than the P4 at the end of its life and now again AMD and Intel have short pipe main range chips.
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