Für alle Freunde der schnörkellosen Theorie wollen wir, bevor es an's Eingemachte geht, nochmals einen Blick auf die Eckdaten der Kontrahenten werfen.
| Merkmale | Pentium 4 | Pentium 4 | Pentium 4 Extreme Edition | Athlon XP | Athlon 64 (FX) |
| Kern | Prescott | Northwood | Northwood 2M | Thoroughbred Barton | Clawhammer Clawhammer-512 Newcastle |
| Frontside-Bus | 533 MHz QDR 800 MHz QDR | 400 MHz QDR 533 MHz QDR 800 MHz QDR | 800 MHz QDR | 266 MHz DDR 333 MHz DDR 400 MHz DDR | entfällt (externe Anbindung über 2000 MHz HyperTransport) |
| Fertigung | 0,09µm | 0,13 µm | 0,13 µm | 0,13 µm | 0,13 µm SOI |
| Sockel | Sockel 478 | Sockel 478 | Sockel 478 | Sockel A | Sockel 754 Sockel 940 (FX) Sockel 939 |
| Taktrate oder Modellnummer | 533 MHz QDR 2400 MHz A 2800 MHz A 800 MHz QDR 2800 MHz E HT+ 3000 MHz E HT+ 3200 MHz E HT+ 3400 MHz E HT+ HT+: Verbessertes Hyper-Threading | 400 MHz QDR 1600 MHz A 1800 MHz A 2000 MHz A 2200 MHz 2400 MHz 2500 MHz 2600 MHz 533 MHz QDR 2266 MHz 2400 MHz B 2533 MHz 2666 MHz 2800 MHz 3066 MHz HT 800 MHz QDR 2400 MHz C HT 2600 MHz C HT 2800 MHz C HT 3000 MHz HT 3200 MHz HT 3400 MHz HT HT: Hyper- Threading | 800 MHZ QDR 3200 MHz HT 3400 MHz HT HT: Hyper- Threading | 266 MHz DDR 1800+ 1900+ 2000+ 2100+ 2200+ 2400+ 2600+ 333 MHz DDR 2600+ 2700+ 2800+ 333 MHz DDR 2500+ 2600+ 2800+ 3000+ 400 MHz DDR 3000+ 3200+ | Athlon 64 (S754): 2800+* 3000+* 3200+ 3400+ 3700+ Athlon 64 (S940): FX-51 FX-53 Athlon 64 (S939) 3500+** 3800+** FX-53 * 512 kB L2-Cache ** 512 kB L2-Cache und ausschl. Newcastle |
| Transistoren | 125 Mio. | 55 Mio. | 169 Mio. | 37,5 Mio. (Tho.) 54,3 Mio. (Bar.) | 68.5 Mio. (NewC.) 105.9 Mio. |
| DIE-Size | 112 mm² | 146 mm² (nB0) 131 mm² (nC1) 131 mm² (nD1) | 240 mm² (nM0) | 80 mm² ("Tho A") 84 mm² ("Tho B") 101 mm² (Bar.) | 144 mm² (NewC.) 193 mm² |
| L1-Execution-Cache | 12.000 µ-Ops | 12.000 µ-Ops | 12.000 µ-Ops | 64 kB | 64 kB |
| L1-Daten-Cache | 16 kB | 8 kB | 8 kB | 64 kB | 64 kB |
| L1-Takt | CPU-Takt | CPU-Takt | CPU-Takt | CPU-Takt | CPU-Takt |
| L2-Cache | 1024kB | 512kB | 512kB | 256kB (Tho.) 512kB (Bar.) | 512kB 1024kB |
| L2-Anbindung | 256 Bit | 256 Bit | 256 Bit | 64 Bit | 128 Bit? |
| L2-Cache-Takt | CPU-Takt | CPU-Takt | CPU-Takt | CPU-Takt | CPU-Takt |
| L2-Modus | L1 inclusive | L1 inclusive | L1 inclusive | L1 exclusive | L1 exclusive |
| L3-Cache | - | - | 2048kB | - | - |
| L3-Cache-Takt | - | CPU-Takt | CPU-Takt | CPU-Takt | CPU-Takt |
| L3-Modus | - | - | L2 inclusive | - | - |
| HW Data Prefetching | Ja | Ja | Ja | Ja | Ja |
| VCore | 1,250V 1,275V 1,300V 1,325V 1,350V 1,375V 1,400V | 1,475V 1,500V 1,525V 1,550V | 1,475V 1,500V 1,525V 1,550V 1,575V 1,600V | 1,50V 1,60V 1,65V | 1,50V |
| Befehlssätze | MMX SSE SSE2 SSE3 | MMX SSE SSE2 | MMX SSE SSE2 | MMX 3DNow! 3DNow!+ SSE | MMX 3DNow! 3DNow!+ SSE SSE2 AMD64 |
| Temperatur Diode | Ja | Ja | Ja | Ja | Ja |
| Energiesparfunktion | - | - | - | Cool'n'Quiet | |
| NX-Bit (Win XP SP2) | - | - | - | Ja | |
| Multiprozessor-fähig | Nein | Nein | Nein | Nein | Nein |
| CPU-Architektur | 31-stufige Pipeline | 20-stufige Pipeline | 20-stufige Pipeline | 15-stufige (FPU) 10-stufige (ALU) Pipeline | 17-stufige (FPU) 12-stufige (ALU) Pipeline |