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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 216.22

-2.3%

12:54 PM EST

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To: j3pflynn who wrote (193914)	4/15/2006 11:43:18 AM
From: eracer	Read Replies (1) of 275872

Re: eracer - Looks like it'll take higher clocks to fully utilize DDR2, but at least things have passed parity with 939. Wonder how high they'll go on clocks and how soon. Considering 3-3-3 DDR2-833 barely outperformed 3-3-3 DDR-500 at 2.5GHz (10x250) in the gaming tests, it is pretty safe to say that DDR2 isn't going to do much to improve performance scaling at higher CPU clock frequencies with this sample. The review mentions that the sample was able to overclock 40% beyond stock speeds. Wesley also mentions in the comments that the stock speed wasn't 1.8GHz. Assuming the sample wasn't 1.6GHz that leaves an overclock to 2.8GHz if stock is 2GHz or near 3.1GHz if stock was 2.2GHz. Looks like there is little chance of L3 cache on the FX-62. In the previous AM2 review Anand said that every FX-62 he had seen had no more cache than the 2x1MB L2 listed in the AM2 spec table. Wesley comments here are that he had two samples to test, one a "top-line AM2", which likely means FX-62. The "top-line AM2" when underclock to the standard AM2 part performed the same. He also mentions that they have tested four different revisions since January. Here are the complete comments: The AM2 processor was NOT a 1.8GHz x2. I stated the CPU could overclock 40% at stock speeds, but the 10x250 is not that 40% overclcok. We chose that ratio because it is a clock speed our DDR2 memory could handle and it was also a speed doable on 939 for a reasonable comparison. We actually had two AM2 processors this round, a top-line AM2 and a more mainstream processor. We looked at performance from both, and it was the same at the same processor speed. The DDR2 memory controller reports as Rev. F. As for the question about manufacture date, we are providing as little information about these pre-release processors and motherboards as possible to protect our sources. We have several sources who work with us to bring you the latest news before anyone else, and we don't want to compromise those relationships. Therefore we are not providing any information that might make it easier for AMD and others to trace our sources. We can assure you these are the latest Rev. AM2 shipped to AMD partners in early April as we have evaluated 4 versions since mid-January. This is also the first rev. to fully support DDR2-800.

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