Comparison: T-Bred "B" Vs. T-Bred "A" Vs. Palomino, Continued
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| Manufacturer | AMD | AMD | AMD | AMD |
|---|---|---|---|---|
| Processor | Athlon XPThoroughbred"B" Core | Athlon XPThoroughbred"A" Core | Athlon XPPalomino Core | AthlonThunderbird Core |
| Introduction | Q3, 2002 | Q2, 2002 | October 9, 2001 | October 9, 2001 |
| Clock Frequencies | 1.86 - 2.66 GHz | 1.46 - 1.80 GHz | 1.2 - 1.80 GHz | 0.65 - 1.40 GHz |
| Manufacturing Process | 0.13 µm | 0.13 µm | 0.18 µm | 0.18 µm |
| Die size | 84 mm² | 80 mm² | 128 mm² | 128 mm² |
| Number of Gates | 37.5 Million | 37.5 Million | 37.5 Million | 37.5 Million |
| Platform | Socket462 | Socket462 | Socket462 | Socket462 |
| CPU Bus Clock (Front Side Bus) | 133/166 MHz266/333 MHz DDR | 133 MHz266 MHz DDR | 133 MHz266 MHz DDR | 100/133 MHz200/266 MHz DDR |
| L1 Execution Cache Size | 64 kB | 64 kB | 64 kB | 64 kB |
| Execution Pre Decode? | no | no | no | no |
| L1 Data Cache Size | 64 kB | 64 kB | 64 kB | 64 kB |
| Hardware Data Prefetch | yes | yes | yes | yes |
| L1 Cache Clock | core clock | core clock | core clock | core clock |
| L1 Data Cache Bus Width | 64 bit | 64 bit | 64 bit | 64 bit |
| L2 Cache Size | 256 kB | 256 kB | 256 kB | 256 kB |
| L2 Cache Clock | core clock | core clock | core clock | core clock |
| L2 Cache Addressable Range | 64 GB | 64 GB | 64 GB | 64 GB |
| Processor Data Bus Width | 64 bit | 64 bit | 64 bit | 64 bit |
| Platform Support | ||||
| Chipsets | VIA KT333 to KT400SiS 735 and SiS 745Nvidia nForce, nForce 2AMD 750 and 760 | VIA KT133A to KT400SiS 735 and SiS 745ALi Magik 1Nvidia nForce, nForce 2AMD 750 and 760 | VIA KT133 to KT400SiS 735 and SiS 745ALi Magik 1Nvidia nForce, nForce 2AMD 750 and 760 | VIA KT133 to KT400SiS 735 and SiS 745ALi Magik 1Nvidia nForce, nForce 2AMD 750 and 760 |
| Type of Memory | SDRAM, DDR-SDRAM | SDRAM, DDR-SDRAM | SDRAM, DDR-SDRAM | SDRAM, DDR-SDRAM |
| Memory Clock | 100/133/166/200 MHz | 100/133/166/200 MHz | 100/133/166 MHz | 100/133/166 MHz |
| Instruction Extensions | ||||
| MMX | yes | yes | yes | yes |
| Enhanced 3DNow! | yes | yes | yes | yes |
| 3DNow! Professional | yes | yes | yes | yes |
| SSE | yes | yes | yes | yes |
| SSE2 | no | no | no | no |
| Electrical Specifications | ||||
| SMP-Support | no ('not officially endorsed or supported') | no ('not officially endorsed or supported') | no ('not officially endorsed or supported') | no ('not officially endorsed or supported') |
| Core Voltage | 1.65 Volt | 1.65 Volt | 1.75 Volt | 1.75 Volt |
| Thermal Protection (Thermal Diode) | yes | yes | yes | yes |
| Integrated Thermal Protection Logic | no, requires logic on motherboard | no, requires logic on motherboard | no, requires logic on motherboard | no, requires logic on motherboard |
