Welcome to Bucaro TecHelp!

Bucaro TecHelp
Maintain Your Computer and Use it More Effectively
to Design a Web Site and Make Money on the Web

About Bucaro TecHelp About BTH User Agreement User Agreement Privacy Policy Privacy Site Map Site Map Contact Bucaro TecHelp Contact RSS News Feeds News Feeds


Victims of Sandy Hook

Stop the Slaughter of Innocents. Congress is bought and paid for by gun lunatics and gun promotion groups. If you want to live in a safe America, help buy Congress back for America. Send a donation to Mayors Against Illegal Guns, 909 Third Avenue, 15th Floor New York, NY 10022


The AMD Athlon 64 Processor

AMD's Athlon 64 processor, released in September 2003, was their first 64-bit processor targeted for the workstation market to compete with Intel's Pentium 4. AMD's first 64-bit processor was the Opteron, released earlier in April that same year, targeted for the server market to compete with Intel's Xeon processor.

AMD Athlon 64 Processor

Initial Athlon 64's used the ClawHammer core which had a single-channel integrated 64-bit memory controller. Later Athlon 64's used the Venice or San Diego core which had an integrated dual-channel 128-bit memory controller.

Athlon 64's that used Socket 754 had the single-channel memory controller. Those that used Socket 939 had the dual-channel memory controller. Socket 754 Athlon 64's had a 800 MHz HyperTransport bus, while Socket 939 versions had a 1000 MHz HyperTransport bus.

Athlon 64 Block Diagram

HyperTransport is a connection method that transfers data faster. On a motherboard, the HyperTransport bus connects the PCI slots, AGP slots and USB ports to the CPU and memory and also provides a connection between the CPU and memory.

All Athlon 64's have a 128KB L1 Cache (64KB for instructions and 64KB for data). The San Diego core is produced only for Socket 939 and doubled Venice's L2 cache from 512 KB to 1 MB and it features a 2000 MHz HyperTransport bus.

AMD's Athlon 64 processors also come in X2 and FX versions, both of which have dual 64-bit cores, the FX versions have their multipliers unlocked for hardware hackers and gamers.

Athlon 64s are able to run 16-bit, 32-bit, and 64-bit code. There are two different modes that the processor can run in: "Legacy mode" and "long mode". Legacy mode runs 16-bit and 32-bit programs natively. Long mode runs 64-bit programs natively, but also allows for 32-bit programs to run inside a 64-bit operating system.

RSS Feed RSS Feed

Follow Stephen Bucaro Follow @Stephen Bucaro

Computer Subsections

Fire HD
[Site User Agreement] [Privacy Policy] [Site map] [Search This Site] [Contact Form]
Copyright©2001-2016 Bucaro TecHelp 13771 N Fountain Hills Blvd Suite 114-248 Fountain Hills, AZ 85268