AMD Opteron 6234 vs Intel Core i5-3550 Comparison

Head-to-Head Benchmarks

The data is unambiguous: the Intel Core i5-3550 sweeps every single benchmark in this comparison, taking all five head-to-head tests with no wins for the AMD Opteron 6234. The largest margin comes in Cinebench R20 single-core, where the Intel part scores 241 against AMD’s 204, a gap of 18.1%. That is the widest delta in the entire suite, and it sets the tone for a matchup defined by per-thread efficiency rather than raw core counts.

The multi-core tests tell a similar story, though with slightly narrower margins. In Cinebench R15 multi-core, the i5-3550 posts 410 versus the Opteron’s 348, a 17.8% lead. The R20 multi-core run shows 1710 against 1453, a 17.7% advantage. The R23 multi-core result repeats the pattern almost exactly: 4073 for Intel, 3461 for AMD, another 17.7% gap. Single-core R23 is marginally wider at 17.8%, with scores of 575 and 488 respectively.

What makes this sweep notable is the hardware behind it. The Opteron 6234 is a 12-core, 12-thread server processor with a 115 W TDP. The i5-3550 is a 4-core, 4-thread desktop chip rated at 77 W. Despite having three times the cores, the AMD part cannot match the Intel chip in any Cinebench workload. The average benchmark scores reflect this overall parity in composite terms — 1178 for Intel versus 1191 for AMD — but the head-to-head results are decisively lopsided.

The consistency of the deltas is striking. Every multi-core test lands between 17.7% and 17.8%, while single-core tests come in at 17.8% and 18.1%. This uniformity suggests a fundamental architectural efficiency gap rather than a workload-specific quirk. The i5-3550 simply extracts more useful work from each clock cycle, and no amount of core count on the AMD side compensates for that disadvantage in these tests.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Core i5-3550 uses the Ivy Bridge architecture, built on a 22 nm process at Intel’s own foundry. It packs 1,400 million transistors into a 160 mm² die. The AMD Opteron 6234 uses the Bulldozer architecture under the Interlagos codename, fabricated by GlobalFoundries on a 32 nm process. That chip contains 2,400 million transistors spread across two 315 mm² dies.

Core configurations diverge sharply. The i5-3550 offers 4 cores and 4 threads, with a base clock of 3.30 GHz and a boost clock of 3.70 GHz. The Opteron 6234 provides 12 cores and 12 threads, but at lower clocks — 2.40 GHz base and 3.00 GHz boost. The Intel part’s higher clock speeds, combined with its newer process node, help explain its benchmark dominance.

Cache layouts reveal different priorities. The i5-3550 allocates 64 KB of L1 per core and 256 KB of L2 per core, with a shared 6 MB L3 pool. The Opteron 6234 uses a larger aggregate cache: 768 KB of L1 total, 2 MB of L2 per module, and 8 MB of L3 per die. Even with more cache on paper, the AMD design cannot translate that resource into Cinebench wins.

Memory subsystems also differ. The i5-3550 runs dual-channel DDR3 with a theoretical bandwidth of 25.6 GB/s and does not support ECC memory. The Opteron 6234 uses quad-channel DDR3, doubling bandwidth to 51.2 GB/s, and supports ECC memory. In raw memory throughput, AMD has the clear advantage, yet it does not show up in the benchmark results.

Other platform differences matter for deployment context. The Intel chip uses PCIe Gen 3 with 16 CPU lanes and includes integrated Intel HD 2500 graphics. The AMD processor uses PCIe Gen 2 and has no integrated graphics at all. The i5-3550 targets the desktop segment on Socket 1155, while the Opteron 6234 is a server/workstation part on Socket G34. The Opteron also launched earlier, in November 2011, versus April 2012 for the Intel chip.

Where Each One Wins

The i5-3550 wins everywhere in this test suite, but the nature of its victories points to specific use cases. In single-threaded workloads, the Intel part’s 18.1% lead in R20 single-core and 17.8% lead in R23 single-core make it the clear choice for applications that rely on per-core performance — typical desktop tasks, legacy software, and lightly threaded productivity tools. The higher boost clock of 3.70 GHz versus 3.00 GHz gives it a substantial frequency advantage that Bulldozer’s wider core design cannot overcome.

For multi-threaded rendering workloads, the i5-3550 still wins, but the margin is tighter at 17.7% across R15, R20, and R23 multi-core tests. This suggests that heavily threaded workloads narrow the gap somewhat, as the Opteron’s 12 cores begin to assert themselves. However, the Intel chip still comes out ahead in every case, meaning that even fully parallel Cinebench renders favor the quad-core part.

The Opteron 6234 has no benchmark wins to claim, but its architectural features point to scenarios where it might hold appeal outside this test suite. Its quad-channel memory bus at 51.2 GB/s and ECC support make it suited for memory-intensive server workloads that require data integrity. The dual-die design with 2,400 million transistors provides substantial aggregate resources, even if Cinebench does not reward them. For server deployments prioritizing memory bandwidth and error correction over raw render performance, the Opteron’s platform characteristics offer capabilities the i5-3550 lacks.

The percentile rankings illustrate broader positioning: both processors sit at the 33rd percentile among all CPUs, indicating they occupy similar performance tiers in the grand scheme. The i5-3550’s nearest rivals include the Core i5-4440 (0.1% lower average score) and Core i5-2400 (0.7% higher), while the Opteron 6234 sits near the Core i5-4460T (0.1% lower) and Core i7-8665UE (0.1% higher). These comparisons show both parts landing in the same general performance neighborhood despite their very different architectures.

FAQ

Q: Which processor has more cores?

A: The AMD Opteron 6234 has 12 cores and 12 threads, while the Intel Core i5-3550 has 4 cores and 4 threads. Despite the 8-core disadvantage, the Intel chip wins all multi-core benchmarks.

Q: What is the performance difference in multi-core Cinebench R23?

A: The i5-3550 scores 4073 in Cinebench R23 multi-core, which is 17.7% ahead of the Opteron 6234’s 3461. This mirrors the 17.7% margin seen in R20 multi-core and the 17.8% margin in R15 multi-core.

Q: Does the Opteron support ECC memory?

A: Yes, the AMD Opteron 6234 supports ECC memory and uses a quad-channel DDR3 bus with 51.2 GB/s bandwidth. The Intel Core i5-3550 does not support ECC and has dual-channel memory at 25.6 GB/s.

Q: Which chip has integrated graphics?

A: The Intel Core i5-3550 includes Intel HD 2500 integrated graphics. The AMD Opteron 6234 has no integrated graphics, which is typical for a server/workstation processor.

Q: How do their average benchmark scores compare?

A: The Opteron 6234 has an average benchmark score of 1191, while the i5-3550 scores 1178. Despite the higher average, the Opteron loses every head-to-head benchmark, with the i5-3550 winning all five tests.

Q: What are the process nodes for each chip?

A: The Intel Core i5-3550 is built on a 22 nm process by Intel, while the AMD Opteron 6234 uses a 32 nm process from GlobalFoundries. The Intel chip also has a smaller die at 160 mm² versus two 315 mm² dies for AMD.

The Verdict

The data points to a single conclusion: the Intel Core i5-3550 is the faster processor in every benchmark measured here. It wins all five head-to-head tests with margins ranging from 17.7% to 18.1%, and it does so while consuming 38 W less power (77 W versus 115 W). For any Cinebench-based workload — whether single-threaded or multi-threaded — the i5-3550 is the superior choice.

The Opteron 6234 does not win a single test, and its average benchmark score of 1191 only edges out the i5-3550’s 1178 because of the specific test mix included in that composite. In direct comparison, the Intel part’s architectural efficiency on 22 nm trumps AMD’s 12-core Bulldozer design on 32 nm. The higher boost clock of 3.70 GHz versus 3.00 GHz, combined with a more modern process, delivers consistent wins across all Cinebench versions.

Who should pick the i5-3550? Anyone whose priority is raw render performance, single-thread responsiveness, or lower power consumption. The chip’s integrated graphics and PCIe Gen 3 support also make it a more complete desktop package, and its launch MSRP of $194 reflects a mainstream positioning.

Who should consider the Opteron 6234? The data does not support choosing it for Cinebench performance, but the quad-channel memory bus, ECC support, and server-oriented platform with 12 cores target a different workload profile entirely. At a launch MSRP of $377, it costs nearly twice as much while losing every benchmark here. Buyers needing ECC memory integrity and high memory bandwidth in a server context might evaluate it on those merits, but for pure compute performance as measured in this comparison, the i5-3550 is the clear winner.