AMD Opteron 4284 vs Intel Core i7-2600S Comparison

The AMD Opteron 4284 and the Intel Core i7-2600S are a fascinating pair, landing at the exact same average benchmark score of 1146 and occupying the same 32nd percentile among all CPUs. Despite this statistical tie, the data reveals they arrive at parity through entirely different architectural philosophies. The Opteron, a server-focused 8-core Bulldozer part, and the i7-2600S, a power-sipping 4-core Sandy Bridge desktop chip, are separated by a razor-thin margin in every measured test, making this comparison a study in how design priorities can converge on identical outcomes.

Head-to-Head Benchmarks

The head-to-head data is remarkably one-sided in terms of outcomes, with the AMD Opteron 4284 winning all six recorded Cinebench tests. However, the deltas are so small that they border on statistical noise. In Cinebench R15 multi-core, the Opteron scores 399 against the Intel’s 396, a 0.8% advantage. The single-core R15 result is slightly more pronounced, with the AMD at 56 versus 55, a 1.8% lead. This pattern repeats across every generation of the Cinebench suite. In R20 multi-core, the Opteron posts 1665 compared to 1651 (0.8% ahead), and in single-core, 234 versus 233 (0.4% ahead). The R23 results show the same trend: 3965 versus 3933 in multi-core (0.8% ahead) and 559 versus 555 in single-core (0.7% ahead).

The Opteron’s clean sweep of 6 wins with 0 losses appears decisive on paper, yet the largest single margin is just 1.8%. This suggests that the two processors are effectively interchangeable in raw rendering workloads. The data implies that the AMD’s extra four physical cores are being almost perfectly neutralized by the Intel’s superior per-core efficiency. The i7-2600S, with its 2.80 GHz base and 3.80 GHz boost clock, manages to keep pace with the Opteron’s 3.00 GHz base and 3.70 GHz boost despite having half the core count. The benchmark results indicate that in Cinebench, the Bulldozer architecture’s module-based design delivers throughput, but Sandy Bridge’s traditional cores extract more performance per clock. Neither chip ever leads by more than two points in single-core tests, and in multi-core tests the gap stays under 33 points. This is a dead heat measured over six separate workloads.

FAQ

Q: Which processor has the higher average benchmark score?

A: Both processors are tied with an identical average benchmark score of 1146. Their nearest rival, the Intel Core i7-3612QE, scores 1147, representing a -0.1% delta, while the AMD Opteron 4332 HE scores 1144, a 0.2% delta.

Q: How do the two chips compare in Cinebench R23 multi-core performance?

A: The AMD Opteron 4284 wins the Cinebench R23 multi-core test with a score of 3965, while the Intel Core i7-2600S scores 3933. This gives the Opteron a 0.8% advantage.

Q: Does the Intel Core i7-2600S win any head-to-head benchmark?

A: No. The head-to-head data shows the AMD Opteron 4284 winning all six Cinebench tests, with the Intel Core i7-2600S recording zero wins.

Q: What is the TDP difference between the two processors?

A: The AMD Opteron 4284 has a TDP of 95 watts, while the Intel Core i7-2600S has a TDP of 65 watts. This represents a 30-watt difference in favor of the Intel part.

Q: Do both processors support ECC memory?

A: No. The AMD Opteron 4284 supports ECC memory, while the Intel Core i7-2600S does not list ECC memory support.

Q: What is the memory bandwidth specification for each chip?

A: The AMD Opteron 4284 has a memory bandwidth of 25.6 GB/s. The Intel Core i7-2600S does not have a memory bandwidth figure listed in the data.

The Verdict

The benchmark data presents a clear but narrow conclusion: for pure Cinebench performance, the AMD Opteron 4284 is the marginally faster processor. It wins every single test, from R15 to R23, in both single-core and multi-core workloads. The largest margin is a 1.8% lead in Cinebench R15 single-core, and the smallest is a 0.4% lead in R20 single-core. If the sole criterion is these rendering benchmarks, the Opteron is the pick. However, the data also shows that the Intel Core i7-2600S matches the Opteron’s average score of 1146 exactly and sits at the same 32nd percentile. The i7-2600S achieves this with a 65-watt TDP compared to the Opteron’s 95 watts, and it includes integrated graphics, which the AMD lacks. For a system builder prioritizing energy efficiency and an all-in-one CPU solution, the Intel part is compelling despite losing every benchmark. The Opteron’s wins are real but slim; the i7-2600S’s efficiency advantages are substantial. The data suggests that the Opteron is the performance choice in this specific workload, while the i7-2600S is the efficiency choice—yet neither can claim a meaningful overall victory.

Specification Differences

The two processors differ on nearly every core specification. The AMD Opteron 4284 features 8 cores and 8 threads, while the Intel Core i7-2600S features 4 cores and 8 threads. Base clocks are close: 3.00 GHz for the AMD versus 2.80 GHz for the Intel, but boost clocks flip the order, with the Intel reaching 3.80 GHz versus the AMD’s 3.70 GHz. The TDP is a significant differentiator, with the AMD at 95 watts and the Intel at 65 watts. They use different sockets: the AMD uses AMD Socket C32, while the Intel uses Intel Socket 1155. The AMD supports ECC memory, while the Intel does not. The Intel includes integrated graphics (Intel HD 2000), while the AMD has no integrated graphics. The AMD lists a memory bandwidth of 25.6 GB/s, while the Intel does not have a listed figure. The AMD’s PCIe support is Gen 2, while the Intel’s is Gen 3 with 16 lanes (CPU only). The AMD has a launch MSRP of $316; the Intel has no launch MSRP listed. The AMD’s part number is OS4284WLU8KGU, while the Intel’s is SR00E.

Architecture Differences

The architectural split is stark. The AMD Opteron 4284 is built on the Bulldozer architecture with the codename Valencia, while the Intel Core i7-2600S uses the Sandy Bridge architecture with the same codename. Both are manufactured on a 32 nm process node, but the AMD is fabricated by GlobalFoundries, while the Intel is fabricated by Intel. The AMD uses 1,200 million transistors on a 315 mm² die, whereas the Intel uses 1,160 million transistors on a 216 mm² die. This means the AMD packs more transistors into a larger area, while the Intel achieves a higher density. The cache layouts are fundamentally different: the AMD has 384 KB of L1 cache, 8 MB of L2 cache, and 8 MB of shared L3 cache. The Intel has 64 KB of L1 cache per core, 256 KB of L2 cache per core, and 8 MB of shared L3 cache. The AMD’s L2 is a single 8 MB pool, while the Intel’s L2 is distributed per core. The AMD’s generation is listed as "Opteron (Valencia)," while the Intel’s is "Core i7 (Sandy Bridge)." The AMD is a server/workstation part, while the Intel is a desktop part. The AMD uses a dual-channel DDR3 memory bus, and so does the Intel, but the AMD specifies a 25.6 GB/s bandwidth. The Intel lacks ECC support, while the AMD includes it as a feature.

Where Each One Wins

The AMD Opteron 4284 wins in every Cinebench workload recorded, meaning it is the superior choice for rendering and multi-threaded compute tasks that scale with core count. Its 8 physical cores, paired with the 8 MB of L2 cache and 8 MB of shared L3, deliver consistent, if small, advantages over the Intel. The data shows the Opteron leading by 0.8% in R15, R20, and R23 multi-core tests, and by 1.8%, 0.4%, and 0.7% in the respective single-core tests. For a server or workstation environment where ECC memory is a requirement, the Opteron is the only option, as the Intel does not support ECC. The Opteron’s larger die and higher transistor count suggest a design aimed at throughput rather than efficiency, and the benchmark data confirms it delivers that throughput, however narrowly.

The Intel Core i7-2600S wins on efficiency and integration. Its 65-watt TDP is 30 watts lower than the Opteron’s 95-watt TDP, making it a better fit for power-constrained or thermally limited systems. The inclusion of Intel HD 2000 integrated graphics means a system can be built without a discrete GPU, which is impossible with the Opteron. The Intel also offers PCIe Gen 3 support, while the AMD is limited to Gen 2, which is relevant for storage and expansion bandwidth. The Intel’s smaller die size of 216 mm², despite a similar transistor count, indicates a more efficient layout. In the data, the Intel matches the Opteron’s average score of 1146 exactly, proving that its 4 cores with 8 threads can hold their own against the AMD’s 8 cores. The i7-2600S is the pick for a compact desktop or a low-power build where every watt matters, while the Opteron is the pick for a server rack where ECC support and raw core count are non-negotiable. The benchmark results do not declare a clear winner; they declare two different winners for two different audiences.