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Home > Hardware Reviews > PC Parts

Friday, December 31, 2004
AMD Athlon 64 FX-55

2. Specifications

AMD Athlon 64 FX-55+ - Page 2

Let's take a quick preview at some of the features the FX-55 offers us:

AMD Athlon 64 FX-55 packaging

CPU Name AMD Athlon 64 FX-55
Codename ClawHammer
CPU Core Frequency 2.60GHz (13x200 with locked multiplier)
Built-In antivirus support(SP2 required) Yes
Simultaneous 32- & 64-bit computing Yes
L1 Cache (Instruction + Data) 128KB (64KB + 64KB)
L2 Cache 1024KB
HyperTransport Yes, one 16x16 link @ 2000 MHz
HyperTransport I/O Bandwidth Up to 8 GB/s
Integrated DDR Memory Controller Yes
Memory Controller Width 128-bit
Memory Supported PC3200, PC2700, PC2100 and PC1600 DDR unbuffered memory
Memory Bandwidth Up to 6.4 GB/s
Total Processor-to-system Bandwidth (HTT plus memory bandwidth) Up to 14.4 GB/s
Process Technology 0.13µ, Strained Silicon-on-insulator technology
Packaging 939-pin organic micro PGA
Thermal Design Power 89W
Die Size 144 mm2
Number of Transistors Approximately 68.5 million

Our NewCastle processor, as recognized by CPU-Z.

Some details about our motherboard and BIOS settings

Our memory timings as seen by CPUZ

The Athlon 64 FX-55 runs by default at a speed of 2.6GHz. That's higher than any AMD processor we have seen so far. It seems the reason for this extra boost in clock speed, originates from the use of strained silicon on the insulator. Strained silicon works by "straining" the lattice of electrical bonds that make up the inside of a chip, pulling them apart slightly. In this way, the amount of drive current needed to power the chip is reduced, allowing the chip to run faster.

The AMD Athlon 64 FX-55 processor

The AMD Athlon 64 FX-55 costs approximately $900. The price might sound completely insane for mainstream users but AMD's FX product line is aiming for "gamers, prosumers and PC enthusiasts".




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