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AMD Athlon 64 FX-57 CPU Review

26th June 2005
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AMD Athlon 64 FX-57 processor $1031 each (PIB)



In a market evolving faster than most reviewers can keep pace with, making it to the top of the heap in any given discipline takes a level of expertise, marketing and engineering excellence that few can achieve.

Once the massively unfancied underdog beavering away in the shadow of the mighty Intel, AMD ave made huge strides with their processor lineup, and though there are people who'd argue the point with their dying breath, there's a general, begrudging acceptance in the industry that for single-core gaming and dual-core generally, AMD currently hold top honours.

Love them or hate them, you can't help but doff your cap to AMD. Against the tide of industry acceptance, and in spite of Intel wielding their significant influence in the retail sector, AMD have somehow managed to create a range of precessors that are not only competitive, they actually lead the way.

Today I'm taking a swift look at the latest addition to AMD's FX line, the FX57. While it does feature a 200MHz speed increase that's not all AMD have done. They have also migrated over to the 90nm "San Diego" core, which means SSE3 support, a generally more flexible memory controller and what AMD mysteriously refer to as "a few tweaks here and there", which could mean anything...or nothing.

First let's glance over the specs:


Frequency 2.8GHz
Cache Sizes 64KB L1 Data + 64KB L1 Instruction Cache / 1MB L2 Cache (Exclusive)
CPU to MC 2.8GHz
Memory Controller Integrated 128-bit wide memory controller
Supported Memory PC1600, PC2100, PC2700 and PC3200 DDR memory
HyperTransport Links 1
HyperTransport Spec 2GHz (2x 1000MHz / DDR)
Effective data bandwidth 14.4 GB/sec [8GB/sec x1 HyperTransport link + 6.4GB/sec memory bandwidth]
Packaging 939-pin organic micro-PGA
Fab location AMD's Fab 30 wafer fabrication facility in Dresden, Germany
Process Technology 90nm (.09-micron) Silicon on Insulator (SOI)
Approx. Transistor count 114 million
Approx. Die Size 115 mm2
Nominal Voltage 1.35-1.40V
Max Thermal Power 104 W
Max Icc (processor current) 74.9A
Max Ambient Case Temp 49-63 degrees Celsius


Athlon64 FX-53
Athlon64 FX-53
Athlon64 FX-55
Athlon64 FX-57
Socket 940
Socket 939
L2 Cache Size
1 MB
Clock Frequency
2.4 GHz
2.6 GHz
Memory Interface
128-bit (dual channel) Registered
128-bit (dual channel)
105.9 Million
114 Million
Die Size
193 mm2
115 mm2
Process Technology
130 nm
90 nm
1.35 - 1.4V


AMD Athlon 64 FX-57 processor $1,031 each (PIB / 1KU pricing)
AMD Athlon 64 FX-55 processor $827 each (PIB / 1KU pricing)


Apparently bowing to public pressure, AMD are to release the FX57 alongside the FX55 giving potential users a choice of price-points at which to break in. How long the FX55 remains available remains to be seen. It's a fair bet that most FX55s will happily run at 2.8GHz FX57 speeds though.


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