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AMD required a new idea as Intel rapidly moved its Pentium III architecture to a .18-micron fabrication process. The solution arrived in the form of the Athlon K75 processor. While nearly identical to the original Athlon, the K75 extended operating frequencies by implementing .18-micron core trace routes. While higher clock ratings are possible, K75 models remain functionally identical to the first-generation Athlon processors.
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Processor Family |
Model Name |
AMD Athlon K75 |
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Performance Rating |
550 – 1000 MHz |
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Generation |
Seventh: 80686 IA-32 |
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Operational Rates |
L1 Cache Speed |
1.0x Core Rate |
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L2 Cache Speed |
Fraction of Core Rate |
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1/2.0x, 1/2.5x, 1/3.0x |
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Front-side Bus Speed |
100 MHz (200 DDR) |
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Multiplier Ratio |
5.5x – 10.0+x (14x maximum) |
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Physical Design |
Interface Packing |
242-Pin Slot A Cartridge |
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Core Die Size |
.18 micron, 102 mm |
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Transistor Count |
22 Million |
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Voltage Interface |
Split Core and I/O |
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Core Voltage |
1.6 volts |
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L2 Cache Voltage |
2.8 – 3.3 volts |
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Power Consumption |
28 – 60 watts |
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Maximum Power |
31 – 65 watts |
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Architectural Design |
Core Technology |
OOO and Speculative Execution RISC |
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Register Support |
Integer = 32 bit |
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Floating-Point = 80 bit |
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MM = 64 bit |
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Execution Units |
3 × IEU |
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3 × AGU |
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3 × FP |
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Max Execution Rate |
5 Micro-Ops per Cycle |
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Data Bus Width |
64 bit |
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Max Memory Support |
Physical = 16 Gigabyte |
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Virtual = 64 Terabyte |
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Multi-Processor Support |
SMP via EV6 Bus |
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Level 1 Code Cache |
64 KB 2-way |
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Level 1 Data Cache |
64 KB 2-way |
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Level 2 Cache |
512 KB Inclusive |
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Pre-fetch Queue |
16 Byte |
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Static Branch Prediction |
Supported |
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Dynamic Branch Prediction |
2048 Entry |
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RSB Branch Prediction |
12 Entry |
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Floating-Point Processor |
Integrated |
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Multimedia Extensions |
MMX, 3DNow!, Extended 3DNow! |
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