Athlon 64 Cores
By Gabriel Torres on October 25, 2005


Enthusiasts love to know which “core” their processor is based on. “Core” is the silicon chip version used inside the CPU. Even in some ads you may find a reference to which core the CPU uses. To the regular user the core reference looks like Greek, so we decided to post a quick guide to all Athlon 64 cores released to date.

Core

Socket

L2 Cache

Manufacturing Process

SSE3 Instructions 

Note

ClawHammer

Socket 754 or 939

1 MB

130 nm

No

 

NewCastle

Socket 754 or 939

512 KB

130 nm

No

 

Winchester 

Socket 939

512 KB

90 nm 

No

 

Venice

Socket 939

512 KB

90 nm

Yes

Enhanced Memory Controller

San Diego

Socket 939

1 MB

90 nm

Yes

Enhanced Memory Controller

SSE3 instructions were first launched with Pentium 4 processor and are MMX-like instructions, created to accelerate multimedia applications.

About the memory controller, what happens is that Athlon 64 processors have a limitation. When four DDR400/PC3200 memory modules are installed on the system, they are accessed at 333 MHz and not at 400 MHz. This was corrected on Venice and San Diego cores: on CPUs based on these cores the processor accesses the four memory modules at 400 MHz.

Originally at http://www.hardwaresecrets.com/article/Athlon-64-Cores/239


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