Comparing The Cores: Palomino Vs. Thoroughbred Vs. Northwood
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| Manufacturer | AMD | AMD | Intel |
|---|---|---|---|
| Processor | Athlon XP Palomino Core | Athlon XP Thoroughbred Core | Pentium 4 Northwood Core |
| Introduction | October 9, 2001 | Q2, 2002 | January 7, 2002 |
| Clock Frequencies | 1.2 - 1.80 GHz | 1.86 - 2.xx GHz | 1.6 - 2.xx GHz |
| Manufacturing Process | 0,18 µm | 0,13 µm | 0,13 µm |
| Die size | 128 mm2 | 80 mm2 | 146 mm2 |
| Number of Gates | 37,5 Million | 37,5 Million | 55 Million |
| Platform | Socket462 | Socket462 | Socket478 |
| CPU Bus Clock(Front Side Bus) | 133 MHz / 266 MHz DDR | 133 MHz / 266 MHz DDR | 100 MHz / 400 MHz QDR |
| L1 Execution Cache Size | 64 kB | 64 kB | 12.000 µ-Ops (Trace Cache) |
| Execution Pre Decode? | no | no | yes |
| L1 Data Cache Size | 64 kB | 64 kB | 8 kB (unconfirmed) |
| Hardware Data Prefetch | yes | yes | yes |
| L1 Cache Clock | core clock | core clock | core clock |
| L1 Data Cache Bus Width | 64 bit | 64 bit | 256 bit |
| L2 Cache Size | 256 kB | 256 kB | 512 kB |
| L2 Cache Clock | core clock | core clock | core clock |
| L2 Cache Addressable Range | 64 GB | 64 GB | 64 GB |
| Processor Data Bus Width | 64 bit | 64 bit | 64 bit |
| Platform Support | |||
| Chipsets | VIA KT133 to KT333ASiS 735 and SiS 745ALi Magik 1Nvidia nForceAMD 750 and 760 | VIA KT133A to KT333ASiS 735 and SiS 745ALi Magik 1Nvidia nForceAMD 750 and 760 | Intel 845, Intel 845D and Intel 845EIntel 850 and Intel 850EVIA P4X266VIA P4X266ASiS 645 |
| Type of Memory | SDRAM, DDR-SDRAM | SDRAM, DDR-SDRAM | SDRAM, DDR-SDRAM, RDRAM |
| Memory Clock | 100/133/166 MHz | 100/133/166 MHz | 100/133/166/300/400/533 MHz |
| Instruction Extensions | Row 22 - Cell 1 | Row 22 - Cell 2 | Row 22 - Cell 3 |
| MMX | yes | yes | yes |
| Enhanced 3DNow! | yes | yes | no |
| 3DNow! Professional | yes | yes | no |
| SSE | yes | yes | yes |
| SSE2 | no | no | yes |
| Electrical Specifications | Row 28 - Cell 1 | Row 28 - Cell 2 | Row 28 - Cell 3 |
| SMP-Support | no ('not officially endorsed or supported') | no ('not officially endorsed or supported') | no |
| Core Voltage | 1,75 Volt | 1,5 Volt | 1,5 Volt |
| Thermal Protection(Thermal Diode) | yes | yes | yes |
| Integrated Thermal Protection Logic | no, requires logic on motherboard | no, requires logic on motherboard | yes |
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