| Features |
|
AMD
Athlon™ 64 |
|
Pentium® 4 |
| |
|
|
|
|
Architecture Introduction |
|
2003 |
2004 |
|
2000 |
 |
| |
|
|
|
|
Infrastructure |
|
Socket 754 |
Socket 939 |
|
Socket 478,
Socket LGA775 |
|
| |
|
|
|
|
Process Technology |
|
90 nanometer or 130 nanometer, SOI |
|
90 nanometer |
|
| |
|
|
|
|
Number of Transistors |
|
105.9 Million |
|
125 Million |
|
| |
|
|
|
|
64-bit Instruction
Set Support |
|
Yes,
AMD64 technology |
|
No |
|
| |
|
|
|
|
32-bit Instruction
Set Support |
|
Yes |
|
Yes |
|
| |
|
|
|
|
| Enhanced Virus Protection for Windows® XP SP2 |
|
Yes |
|
No |
|
| |
|
|
|
|
System Bus Technology |
|
HyperTransport™
technology up to 2000MHz
Full duplex |
|
Front Side Bus @ 800 MHz,
Half duplex |
|
| |
|
|
|
|
Integrated DDR Memory
Controller (MCT) |
|
64-bit + 8-bit ECC
PC3200, PC 2700, PC 2100, or PC1600 |
128-bit + 16-bit ECC
unbuffered PC3200, PC 2700,
PC 2100, or PC1600
|
|
No,
Discrete logic device on motherboard |
|
| |
|
|
|
|
Total Processor-to-System
Bandwidth |
|
HyperTransport bandwidth: up to 6.4 GB/s
Memory bandwidth: up to 3.2 GB/s
Total: up to 9.6 GB/s
|
HyperTransport: up to 8.0 GB/s
Memory bandwidth: up to 6.4 GB/s
Total: up to 14.4 GB/s
|
|
Total: up to 6.4 GB/s |
|
| |
|
|
|
|
Integrated Northbridge |
|
Yes,
128-bit data path @ CPU core frequency |
|
No,
Discrete logic device on motherboard,
64-bit data path @ 200MHz |
|
| |
|
|
|
|
High-Performance,
On-chip Cache |
|
L1: 128KB
L2: 1024KB, or 512k(exclusive)
Total Effective Cache: 640K or 1152KB (3700+ only) |
|
L1: 12K µop trace + 8KB data
L2:
1MB
(inclusive)
Total Effective Cache:
1MB
|
|
| |
|
|
|
|
3D and Multimedia
Instructions |
|
3DNow!™
Professional technology, SSE2 |
|
SSE, SSE2,
SSE3 |
创新的微处理器、闪存和低功耗处理器解决方案
