AMD Opteron 6212 vs Intel Core i7-3635QM Comparison

The Intel Core i7-3635QM is the clear benchmark winner, taking all five head-to-head tests with a consistent 20% performance advantage over the AMD Opteron 6212. Despite the Opteron’s higher core count and larger cache pool, the i7-3635QM’s architectural efficiency and superior single-thread performance dominate across every Cinebench workload, making it the faster processor in every measured scenario. The data shows no test where the AMD Opteron 6212 manages to pull ahead, leaving the Intel part as the definitive choice for raw compute speed, albeit within different market contexts.

Where Each One Wins

The benchmark results are unambiguous: the Intel Core i7-3635QM wins all five head-to-head comparisons. There is no workload category in the data where the AMD Opteron 6212 takes a victory. The Intel part wins by exactly 20% in Cinebench R15 multi-core, 20.1% in R20 multi-core, 20.6% in R20 single-core, 20.1% in R23 multi-core, and 20.2% in R23 single-core. This consistency across both single- and multi-threaded tests indicates the i7-3635QM is simply a faster CPU per clock and per core, not just in one specific benchmark type.

The Opteron’s only theoretical advantages lie in its platform features rather than benchmark scores. It supports ECC memory, offers quad-channel DDR3 with 51.2 GB/s bandwidth, and uses the AMD Socket G34 platform. These features are absent from the Intel part’s data, but they do not translate into any Cinebench performance win. The i7-3635QM, meanwhile, benefits from a mobile form factor with integrated Intel HD 4000 graphics, which the Opteron lacks entirely. For workloads that rely on the CPU alone, the Intel processor is the winner in every test; for server-specific features like ECC or massive memory bandwidth, the Opteron holds a platform advantage that the benchmarks do not capture.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Core i7-3635QM uses the Ivy Bridge architecture on a 22 nm process node, manufactured by Intel with 1,480 million transistors on a 160 mm² die. It packs 4 cores with 8 threads via Hyper-Threading, and each core gets 64 KB of L1 and 256 KB of L2 cache, with a shared 6 MB L3 cache. The base clock is 2.40 GHz with a boost to 3.40 GHz. It is a mobile part, socketed in Intel BGA 1224, with a 45 W TDP and dual-channel memory bus. Its integrated graphics is the Intel HD 4000.

The AMD Opteron 6212 is a server/workstation chip built on the Bulldozer architecture, codenamed Interlagos, using a 32 nm process from GlobalFoundries. It has 8 cores and 8 threads with no simultaneous multithreading. The cache layout is notably different: 768 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. It has a base clock of 2.60 GHz and a boost clock of 3.20 GHz. The die size is listed as 2x 315 mm², with 2,400 million transistors, reflecting a dual-die design. The TDP is 115 W, it uses AMD Socket G34, supports quad-channel DDR3 memory with 51.2 GB/s bandwidth, and includes ECC memory support. It has no integrated graphics and uses PCIe Gen 2.

The architectural split is stark: Intel’s 22 nm process with fewer, faster cores and a shared L3 cache versus AMD’s 32 nm process with more physical cores but no SMT. The Opteron’s higher base clock (2.60 vs 2.40 GHz) does not help it overcome the Intel part’s superior per-core performance. The Intel chip’s 3.40 GHz boost clock is also higher than the Opteron’s 3.20 GHz, and the 45 W TDP of the i7-3635QM is less than half of the Opteron’s 115 W, indicating a major efficiency gap.

Head-to-Head Benchmarks

The largest margin comes from Cinebench R20 single-core, where the i7-3635QM scores 240 against the Opteron’s 199, a 20.6% lead. This single-threaded advantage is the foundation of the Intel part’s overall win, as it carries over into every multi-core test. In Cinebench R15 multi-core, the Intel scores 408 versus 340, a 20% difference. The R20 multi-core test shows 1703 versus 1418 (20.1% lead), and R23 multi-core shows 4057 versus 3377 (20.1% lead). The R23 single-core result is 572 versus 476, a 20.2% advantage.

The consistency of the 20% delta across all tests is notable. The Intel part does not just win by a little in some tests and a lot in others; it wins by almost exactly one-fifth in every scenario. This suggests the performance gap is structural, rooted in the architectural differences between Ivy Bridge and Bulldozer, rather than workload-specific. Even with the Opteron’s 8 physical cores versus the Intel’s 4 cores and 8 threads, the Intel part’s multi-core scores are higher, proving that Bulldozer’s module-based design cannot match the efficiency of Intel’s Hyper-Threaded cores in Cinebench. The Opteron’s higher base clock and extra cores are insufficient to compensate for the per-core throughput deficit.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6212 has 8 cores, while the Intel Core i7-3635QM has 4 cores. The Intel part compensates with 8 threads via Hyper-Threading, while the Opteron has 8 threads with no SMT.

Q: Does the AMD Opteron 6212 win any benchmark?

A: No. In the head-to-head data, the Opteron 6212 loses all five Cinebench tests, with the Intel i7-3635QM winning by margins between 20% and 20.6%.

Q: What is the TDP difference between the two?

A: The Intel Core i7-3635QM has a TDP of 45 W, while the AMD Opteron 6212 has a TDP of 115 W. This makes the Intel part far more power-efficient.

Q: Does the Opteron support ECC memory?

A: Yes, the AMD Opteron 6212 supports ECC memory. The Intel Core i7-3635QM does not support ECC memory.

Q: Which processor has integrated graphics?

A: The Intel Core i7-3635QM includes Intel HD 4000 integrated graphics. The AMD Opteron 6212 has no integrated graphics.

Q: What is the memory bandwidth of the Opteron?

A: The AMD Opteron 6212 has a quad-channel memory bus with 51.2 GB/s bandwidth. The Intel part uses a dual-channel bus with no bandwidth figure listed.

The Verdict

The data is one-sided: the Intel Core i7-3635QM is the faster CPU in every benchmark test. Anyone prioritizing raw compute performance in Cinebench workloads should choose the Intel part without hesitation, as it delivers a consistent 20% advantage across single- and multi-threaded tests. The Opteron 6212’s higher core count and clock speed do not translate into any measured performance win, and its 115 W TDP makes it less efficient in addition to being slower.

However, the Opteron is a server/workstation processor with features the Intel mobile part lacks: ECC memory support, quad-channel DDR3 with 51.2 GB/s bandwidth, and a Socket G34 platform. If the workload requires ECC reliability or massive memory bandwidth, the Opteron is the only option between the two, despite its benchmark deficit. The i7-3635QM, meanwhile, is a mobile chip with integrated graphics, making it suitable for laptops or compact systems where a discrete GPU is not needed. In pure CPU performance, the Intel Core i7-3635QM is the definitive winner; in server-specific platform features, the AMD Opteron 6212 holds an unmeasured advantage.

Specification Differences

| Specification | Intel Core i7-3635QM | AMD Opteron 6212 |

|---|---|---|

| Cores | 4 | 8 |

| Threads | 8 | 8 |

| Base Clock | 2.40 GHz | 2.60 GHz |

| Boost Clock | 3.40 GHz | 3.20 GHz |

| TDP | 45 W | 115 W |

| Socket | Intel BGA 1224 | AMD Socket G34 |

| Architecture | Ivy Bridge | Bulldozer |

| Codename | Ivy Bridge | Interlagos |

| Process Node | 22 nm | 32 nm |

| Foundry | Intel | GlobalFoundries |

| Transistors | 1,480 million | 2,400 million |

| Die Size | 160 mm² | 2x 315 mm² |

| L1 Cache | 64 KB (per core) | 768 KB |

| L2 Cache | 256 KB (per core) | 2 MB (per module) |

| L3 Cache | 6 MB (shared) | 8 MB (per die) |

| Memory Bus | Dual-channel | Quad-channel |

| Memory Bandwidth | Not listed | 51.2 GB/s |

| ECC Memory | No | Yes |

| Integrated Graphics | Intel HD 4000 | None |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2012-08-31 | 2011-11-13 |

| Production Status | Not listed | End-of-life |