Sign in with
Sign up | Sign in

Comparison Of All P4 CPUs

Hot Contraband: P4 With 3.6 GHz
By
Intel P4 Cores Willamette Northwood Northwood "A" Prescott
Clock Speed 1.3 - 2.0 GHz 1.4 - 2.6 GHz 2.26 - 3.60 GHz 3.60 GHz - 5.xx GHz
FSB clock 100 MHz 100 MHz 133 MHz 166 MHz
FSB speed Quad-Pumped (400 MHz) Quad-Pumped (400 MHz) Quad-Pumped (533 MHz) Quad-Pumped (666 MHz)
L1-Cache (Trace) 12 K µ-Ops 12 K µ-Ops 12 K µ-Ops ?
L1-Cache (Data) 8 kB 8 kB 8 kB ?
L2-Cache (Data) 256 kB 512 kB 512 kB 512 kB
Process 0.18 µm 0.13 µm 0.13 µm 0.09 µm
CPU Die Size 217 mm2 146 mm2 146 mm2 ?
Number of Gates 42 Million 55 Million 55 Million ?
Gates per size 193,548 gates/mm² 376,712 gates/mm² 376,712 gates/mm² ?
CPU Core voltage 1.75 V 1.50 V 1.50 V - 1.525 V 1.25 V
Amperage max. 43 A 41.7 A 44.9 A ?
Power consumption max. 75.3 Watt 62.6 Watt 68.4 Watt ?
Hyperthreading no no yes, from 3.06 GHz yes

Basis For Discussion: Memory Performance AMD Vs. Intel

The two benchmark suites SiSoft Memory and PC Mark 2002 Memory give clues to the performance of the memory interface. For this, we compared the Pentium 4/2533 with the fastest Athlon XP 2600+ - each on different but comparable platforms equipped with identical peripherals.

The SiSoft test shows that DDR333 memory is marginally slower than 400 MHz RDRAM memory (PC800). The outcome is different with the PC Mark 2002: here, the P4's DDR platform even outstrips the RDRAM system. As before, the RDRAM platform with its 533 MHz memory clock speed is still unmatched, this system winning by a length in every test. Even with the fastest DDR333 memory (CL2), the AMD Athlon XP 2600+ doesn't quite reach the performance of an optimally configured DDR-based P4 system.

React To This Article