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PRODUCT LABS - AMD (Thunderbird) Processor
Labs - Home Introduction

AMD Socket A Athlon (Thunderbird) Processor


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AMD Thunderbird

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Competitive Comparison

The "New" AMD Socket A Athlon (Thunderbird) Processor

Processor Architecture/Technology--Competitive Comparison

 

AMD Seventh Generation Intel Previous Generation
Feature AMD Athlon™ Processor Pentium® III

Operations per clock cycle

9 5

Integer pipelines

3 2

Floating point pipelines

3 1

Full x86 decoders

3 1

L1 cache size

128KB 32KB

L2 cache size

256KB on-chip * or 512KB external 256KB on-chip or 512KB external

Total on-chip full-speed cache

384KB 288KB

System bus speed

200 MHz (scalable to 400+ MHz) 100MHz or 133MHz

Peak bus bandwidth

1.6 to 3.2 GB/s+ 533 MB/s to 1.06 GB/s

Bus outstanding transactions

24 per processor 4 - 8 per processor

Clock technology

Source synchronous (Clock forwarding) Common clock

3D enhancement instructions

Enhanced 3DNow!™ SSE

Total no. of instructions

45 71

Single-precision FP SIMD

Yes Yes

4 FP operations per clock

Yes Yes

Cache/prefetch controls

Yes Yes

Streaming controls

Yes Yes

DSP/comm extensions

Yes No

Multiprocessing support

Yes, point-to-point Yes, shared

Max. system processors

Unlimited (by chipset) Unlimited (by chipset)

* While all AMD Athlon processors currently being manufactured by AMD feature 256K of full-speed, on-die L2 cache memory, previous versions, without on-die L2 cache, may still be commercially available in some computer systems.