| Features
and Benefits |
AMD
Athlon™ XP |
Pentium?
4 |
 |
QuantiSpeed™
Architecture
Optimum balance between
work per clock cycle and operating frequency |
|
Yes |
|
No |
|
|
Operations
per clock cycle
More operations per
clock cycle enables faster software execution |
|
9 |
|
6 |
|
|
Integer
Pipelines
|
|
3 |
|
4 |
|
|
Floating
Point Pipelines
|
|
3 |
|
2 |
|
|
Full
x86 Decoders
|
|
3 |
|
1 |
|
|
L1
Cache Size
|
|
128KB |
|
12k
μop (Trace Cache) + 8KB (Data Cache) |
|
|
L2
Cache Size
|
|
256KB,
512KB
(on-chip) |
|
512KB
(on-chip) |
|
|
Total
on-chip full-speed cache
|
|
384KB,
640KB |
|
520KB
+ 12K μop (on-chip) |
|
|
Total
effective, on-chip, full speed cache
|
|
384KB,
640KB
(exclusive) |
|
512KB
(inclusive) |
|
|
System
Bus Speed
The speed at which data is
transferred between the processor and the rest
of the system |
|
400MHz
333MHz
266MHz |
|
533MHz
400MHz |
|
|
3D
Enhancement Instructions
Enables more
lifelike 3D imaging and graphics |
|
3DNow!™
Professional Technology |
|
SSE2 |
|
|
Cache/prefetch
controls
| |
Yes |
|
Yes |
|
|
Streaming
Controls
|
|
Yes |
|
Yes |
|
|
DSP/comm
extensions
|
|
Yes |
|
Yes |
创新的微处理器、闪存和低功耗处理器解决方案
