|
Server System Comparison |
AMD
Opteron™ |
Intel
Xeon1 |
Intel Xeon2 |
Intel
Xeon MP3 |
Intel
Itanium 24 |
 |
| Modular,
glueless scalability |
Yes
|
Requires
Northbridge
|
Requires Northbridge |
Requires
Northbridge
|
Requires
Northbridge |
| SMP
Capabilities |
Up
to 8-way |
Up
to 2-way |
up to 2-way |
Up
to 4-way
|
Up
to 4-way |
| Direct Connect Architecture |
Yes
|
No
|
No |
No
|
No |
| Dual-Core technology |
Yes |
No |
No |
No |
No |
High
Performance 32-bit and 64-bit computing
|
AMD64
|
No
|
EM64T |
EM64T
|
No |
HyperTransport™
technology
|
Yes
|
No
|
No |
No
|
No
|
Integrated
DDR memory controller
|
Yes
|
No
|
No |
No
|
No
|
 |
| Front
Side Bus frequency |
1.4
- 2.8 GHz† |
533
MHz |
800 MHz |
667 MHz |
400
MHz |
| Front
Side Bus bandwidth |
11.2
- 22.4 GB/s† |
4.3
GB/s |
6.4 GB/s |
10.6 GB/s |
6.4
GB/s |
| Maximum
Inter-processor bandwidth |
8.0
GB/s |
4.3
GB/s |
6.4 GB/s |
10.6 GB/s |
6.4
GB/s |
| Memory
support |
DDR266/333/400 |
DDR266 |
DDR333/DDR2-400 |
DDR266/333/DDR2-400 |
DDR200 |
| Memory
Bandwidth 2P System |
12.8
GB/s†† |
4.3
GB/s |
6.4 GB/s |
12.8 GB/s |
6.4
GB/s |
| Memory
Bandwidth 4P System |
25.6
GB/s††† |
N/A |
N/A |
12.8 GB/s |
6.4
GB/s |
|
L1
cache size (max)
|
64KB (Data) + 64KB (Instruction) per core
|
8KB + 12k mop
|
16KB + 12k mop |
16KB + 12k mop
|
32
KB |
L2
cache size (max)
|
1
MB
|
512
KB
|
2 MB |
1 MB
|
256
KB |
L3
cache size (max)
|
N/A
|
2
MB
|
N/A |
8 MB
|
9 MB |
| Maximum
I/O bandwidth 2P System |
24.0 GB/s†† |
3.2
GB/s |
12.3 GB/s |
14.0 GB/s |
6.4
GB/s |
| Maximum
I/O bandwidth 4P System |
32.0
GB/s††† |
N/A |
N/A |
14.0 GB/s |
6.4
GB/s |
| SIMD
Instruction Set Support |
SSE, SSE2,
SSE3 |
SSE,
SSE2 |
SSE, SSE2, SSE3 |
SSE, SSE2, SSE3 |
N/A |
|
创新的微处理器、闪存和低功耗处理器解决方案
