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Politics : Formerly About Advanced Micro Devices
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To: Petz who wrote (99673)3/24/2000 12:10:00 AM
From: tejek  Read Replies (1) of 1574683
 
The actual clock speed of this "600 MHz" RAM is 533 MHz (not kidding!). Since RDRAM has a 16 bit (2 bytes) bus width, it can do 1066 MB/sec peak.

The lowly $99 128M PC133 stick I bought last week has a 64 bit (8 bytes) bus that operates at 133 MHz. Its peak bandwidth of 133*8 is also 1066 MB/sec peak, exactly the same as that expensive "600 MHz" RDRAM
The actual clock speed of this "600 MHz" RAM is 533 MHz (not kidding!). Since RDRAM has a 16 bit (2 bytes) bus width, it can do 1066 MB/sec peak.

Petz,

I thought the intent of the narrower channel of the RDRAM (16 bus width) was to make RDRAM faster....so even at 533 MHz the RDRAM should beat your pc133 stick that runs at MHz. Why doesn't it?

BTW thanks for the response.

ted
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