AMD Opteron 6276 vs Intel Xeon E5-2643
Physical Specifications
| Socket | AMD Socket G34 | Intel Socket 2011 |
|---|---|---|
| Process size | 32 nm | 32 nm |
| Transistors | 2,400 million | 1,270 million |
| Die size | 316 mm² | 294 mm² |
| Package | — | FC-LGA10 |
| Foundry | — | Intel |
Performance
| Frequency | 2.3 GHz | 3.3 GHz |
|---|---|---|
| Turbo clock | up to 3.2 GHz | up to 3.5 GHz |
| Base clock | 200 MHz | 100 MHz |
| Multiplier | 11.5x | 33.0x |
| Multiplier unlocked | No | No |
| TDP | 115 W | 130 W |
| Voltage | — | 1.35 V |
Architecture Details
| Vertical Segment | Server/Workstation | Server/Workstation |
|---|---|---|
| Production status | End-of-life | unknown |
| Release date | Nov 14th, 2011 | Mar 6th, 2012 |
| Codename | Interlagos | Sandy Bridge-EP |
| Generation | Opteron | Xeon E5 |
| Part | OS6276WKTGGGU | SR0L7 |
| Memory support | DDR3 | DDR3 Quad-channel |
| ECC memory | No | Yes |
| PCI Express | Gen 2 | Gen 3 |
Cores
| Total Cores | 16 | 4 |
|---|---|---|
| Total Threads | 16 | 8 |
| SMP # CPUs | 4 | 2 |
| Integrated graphics | — | — |
Cache
| Cache L1 | 768K | 64K (per core) |
|---|---|---|
| Cache L2 | 16MB | 256K (per core) |
| Cache L3 | 8MB (per die) | 10MB (shared) |
Notes
| Notes | 16KB L1 data cache per core. 64KB L1 instruction cache shared per two cores (per module). 2MB L2 cache shared per two cores (per module). 8MB L3 cache shared per eight cores (per die). 14MB total L3 cache available when using HT Assist. | — |
|---|
Features & Technologies
| 8.0GT/s QPI | — | Yes |
|---|---|---|
| AES | Yes | — |
| AES-NI | — | Yes |
| AMD-V | Yes | — |
| AMD64 | Yes | — |
| AVX | Yes | Yes |
| CLMUL | Yes | — |
| CVT16 | Yes | — |
| EIST | — | Yes |
| EVP | Yes | — |
| FMA4 | Yes | — |
| HTT | — | Yes |
| Intel 64 | — | Yes |
| MMX | Yes | Yes |
| SSE | Yes | Yes |
| SSE2 | Yes | Yes |
| SSE3 | Yes | Yes |
| SSE4.1 | Yes | — |
| SSE4.2 | Yes | Yes |
| SSE4A | Yes | — |
| SSSE3 | Yes | Yes |
| TXT | — | Yes |
| VT-d | — | Yes |
| VT-x | — | Yes |
| XD bit | — | Yes |
| XOP | Yes | — |
