Third-Generation AMD Opteron™ Processor Server Competitive Comparison
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| System Comparison |
Quad-Core (45nm)
AMD Opteron™ Processors |
Quad-Core Intel Xeon processor 5400 Series1 |
Six-Core Intel Xeon MP 7400 Series2, 3 |
|
| Modular, glueless scalability |
Yes |
Requires Northbridge |
Requires Northbridge |
| SMP Capabilities |
Up to 8 Sockets/32 Cores |
Up to 2 Sockets/8 Cores |
Up to 4 Sockets/24 Cores |
| Direct Connect Architecture |
Yes |
No, uses Front-Side Bus |
No, uses Front-Side Bus |
| Native Mulit-Core Technololgy |
Yes |
No |
Yes |
| High-Performance 32-bit and 64-bit computing |
AMD64 |
EM64T |
EM64T |
| HyperTransport™ technology |
Yes |
No |
No |
| Integrated DDR2 memory controller |
Yes |
No |
No |
| Hardware-Assisted Virtualization |
AMD-V™ with Rapid Virtualization Indexing |
Intel VT |
intel VT |
|
| Memory support |
RDDR2 400/533/667/800 |
FBDIMM 533/667/800 |
FBDIMM 533/667 |
| Maximum Memory Bandwidth 2P System |
25.6GB/s† |
25.6GB/s |
N/A |
| Maximum I/O bandwidth with 2P System |
16.0GB/s † |
14GB/s |
N/A |
| Maximum Total bandwidth with 2P System |
41.6GB/s† |
25.6GB/s |
N/A |
| Maximum Memory Bandwidth 4P System |
51.2GB/s †† |
N/A |
32GB/s |
| Maximum I/O bandwidth with 4P System |
32.0GB/s †† |
N/A |
6GB/s |
| Maximum Total Bandwidth 4P System |
83.2GB/s †† |
N/A |
34GB/s |
| Maximum Graphics Support |
Dual PCIe® x16 |
PCIe® x16 |
PCIe® x16 |
|
| L1 cache size (max) |
64KB (Data) + 64KB (Instruction) per core |
32KB (Data) + 32KB (Instruction) per core |
32KB (Data) + 32KB (Instruction) per core |
| L2 cache size (max) |
512KB per core |
6MB (shared) x 2 |
6-9MB (3MB per 2 cores) |
| L3 cache size (max) |
6MB (shared) |
N/A |
6-9MB (shared, inclusive) |
| SIMD Instruction Set Support |
SSE, SSE2, SSE3, SSE4A |
SSE, SSE2, SSE3, SSE4.1 |
SSE2, SSE3, SSE4.1 |
|
|
† |
AMD 2P System – AMD Opteron™ 2300 Series processor with 1 HyperTransport™ technology bus and 2 HyperTransport™ technology I/O Buses with DDR2-800 memory |
|
†† |
AMD 4P System – AMD Opteron 8300 Series processor with 4 HyperTransport™ technology Inter-processor Buses and 4 HyperTransport™ technology I/O Buses with DDR2-800 memory |
| 1 |
With Intel 5400 chipset |
| 2 |
With Intel 7300 and 7200 Chipset |
| 3 |
Other OEM chipsets support additional capabilities |
| Dedicated Bandwidth |
| Shared Bandwidth |
©November 2008
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