AMD Opteron 6234 vs Intel Core i5-3570S Comparison

Where Each One Wins

The benchmark data presents an unusually one-sided picture. The Intel Core i5-3570S wins all five recorded head-to-head comparisons, covering Cinebench R15, R20, and R23 in both multi-core and single-core workloads. The AMD Opteron 6234, despite having three times the core count, never takes a single victory in the shared test suite. This does not mean the Opteron is without purpose, but its strengths lie outside the measured Cinebench workloads.

The Opteron 6234 belongs to the server and workstation segment. Its 12 cores and 12 threads, paired with quad-channel DDR3 memory and ECC support, target throughput-oriented environments where memory bandwidth and error correction matter more than raw single-thread speed. The recorded data shows its average benchmark score sits at 1191, placing it in the 33rd percentile of all CPUs. Its nearest rivals include the Intel Core i5-4460T (average score 1190, delta 0.1%), the Intel Core i7-8665UE (1193, delta -0.1%), and the Intel Core i3-4170 (1193, delta -0.2%). The Opteron effectively trades blows with low-power desktop and mobile parts in aggregate scoring, which tells you its multi-thread advantage is largely offset by weak single-core performance.

The Core i5-3570S, by contrast, is a desktop part with 4 cores and 4 threads. Its average benchmark score is 1169, also in the 33rd percentile, with nearest rivals including the Intel Core i7-2960XM (1169, delta 0%), the AMD Opteron 6220 (1168, delta 0.1%), and the Intel Core i5-3450 (1166, delta 0.2%). The i5-3570S wins because its per-core efficiency is far higher, and Cinebench rewards that efficiency even in multi-core tests when core counts are not extreme.

For workloads that are latency-sensitive, lightly threaded, or dependent on single-core performance, the Core i5-3570S is the clear choice. For environments that require ECC memory, quad-channel bandwidth, or a high physical core count for server virtualization and dense parallel workloads, the Opteron 6234 remains relevant despite losing every measured benchmark.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Opteron 6234 uses the Bulldozer architecture, specifically the Interlagos codename, fabricated on a 32 nm process at GlobalFoundries. It packs 2,400 million transistors across a dual-die design measuring 2x 315 mm². The cache hierarchy is module-based: 768 KB of L1, 2 MB of L2 per module, and 8 MB of L3 per die. This is a high-core-count server chip designed for parallel throughput, with a base clock of 2.40 GHz and a boost clock of 3.00 GHz. Its thermal design power is 115 W, and it uses the AMD Socket G34 platform. Memory support is quad-channel DDR3 with a theoretical bandwidth of 51.2 GB/s, and ECC is supported. It has no integrated graphics and uses PCIe Gen 2.

The Intel Core i5-3570S uses the Ivy Bridge architecture, also its codename, on a 22 nm process at Intel. It is a monolithic die measuring 133 mm², with 4 cores and 4 threads. The cache layout is per-core: 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3. Base clock is 3.10 GHz, boost clock is 3.80 GHz, and TDP is 65 W, substantially lower than the Opteron. It uses Intel Socket 1155, supports dual-channel DDR3, and does not support ECC. It includes Intel HD 2500 integrated graphics, a feature entirely absent on the Opteron. PCIe is Gen 3 with 16 lanes from the CPU.

The process node difference matters. The 22 nm Ivy Bridge part achieves higher clocks (3.80 GHz boost versus 3.00 GHz) on roughly half the TDP (65 W versus 115 W) while using a much smaller die. The Opteron's 32 nm process and dual-die design inherently limit clock speeds and energy efficiency. The Core i5 also enjoys a more modern PCIe implementation (Gen 3 versus Gen 2), which affects peripheral bandwidth in desktop systems.

The memory architectures reflect their respective markets. Quad-channel ECC DDR3 on the Opteron is a server staple, providing higher aggregate bandwidth and data integrity. Dual-channel non-ECC on the Core i5 is typical for desktop use, where cost and simplicity matter. Neither supports the other's memory configuration, so platform choice is dictated by workload requirements.

Head-to-Head Benchmarks

The five recorded Cinebench comparisons all favor the Intel Core i5-3570S, with remarkably consistent margins. In Cinebench R15 multi-core, the Opteron scores 348 against the Core i5's 402, a delta of -13.4%. This is the smallest absolute gap, but still a decisive loss for the 12-core server chip.

Cinebench R20 multi-core shows a similar pattern: the Opteron manages 1453, while the Core i5 reaches 1676, a delta of -13.3%. The consistency across R15 and R20 suggests the workload scaling is stable; the Core i5's architectural efficiency overcomes the Opteron's 3x core advantage.

Single-core results are equally telling. In Cinebench R20 single-core, the Opteron scores 204 versus the Core i5's 236, a delta of -13.6%. In Cinebench R23 single-core, the Opteron scores 488 versus 563, a delta of -13.3%. The Core i5's base clock of 3.10 GHz and boost of 3.80 GHz, combined with Ivy Bridge's superior instructions per clock, produce a consistent 13% lead in single-threaded rendering.

Cinebench R23 multi-core repeats the margin: Opteron 3461, Core i5 3991, delta -13.3%. This uniformity is striking. Across five tests spanning three major Cinebench versions, the delta never deviates outside the -13.3% to -13.6% range. That consistency indicates the performance gap is structural, not workload-dependent.

The Opteron's 12 cores do not translate into multi-core wins because Cinebench's multi-core tests still benefit from strong per-core performance. The Core i5's 4 cores, each running at higher clocks with better efficiency, collectively outperform the Opteron's 12 slower, less efficient cores. The data shows zero wins for the Opteron and five wins for the Core i5, confirming a total sweep.

FAQ

Q: Does the AMD Opteron 6234 ever beat the Intel Core i5-3570S in any benchmark?

A: No. In the five head-to-head Cinebench tests (R15 multi-core, R20 multi-core and single-core, R23 multi-core and single-core), the Core i5-3570S wins all five. The Opteron's largest deficit is -13.6% in R20 single-core, and its smallest is -13.3% in R23 multi-core.

Q: Why does the 12-core Opteron lose to the 4-core Core i5 in multi-core tests?

A: The Core i5-3570S runs at significantly higher clocks (3.10 GHz base, 3.80 GHz boost versus 2.40 GHz base, 3.00 GHz boost) and uses the newer 22 nm Ivy Bridge architecture. Cinebench multi-core tests reward per-core efficiency alongside core count, and the Core i5's efficiency advantage more than compensates for having one-third the cores.

Q: What memory capabilities differ between the two processors?

A: The Opteron 6234 supports quad-channel DDR3 with a theoretical bandwidth of 51.2 GB/s and includes ECC support. The Core i5-3570S supports dual-channel DDR3, has no published memory bandwidth in the database, and does not support ECC.

Q: Which processor has integrated graphics?

A: Only the Intel Core i5-3570S includes integrated graphics, specifically Intel HD 2500. The AMD Opteron 6234 has no integrated graphics, which is typical for server processors that rely on dedicated GPUs or headless operation.

Q: How do the two processors compare in average benchmark score and percentile?

A: The Opteron 6234 has an average benchmark score of 1191 and sits in the 33rd percentile of all CPUs. The Core i5-3570S has an average score of 1169 and also sits in the 33rd percentile. Their nearest rivals differ; the Opteron is closest to the Intel Core i5-4460T (delta 0.1%), while the Core i5 is closest to the Intel Core i7-2960XM (delta 0%).

Q: What are the release dates and production statuses?

A: The AMD Opteron 6234 was released on 2011-11-13 and is marked as end-of-life. The Intel Core i5-3570S was released on 2012-05-31, with no production status recorded in the database.

Specification Differences

The two processors differ across nearly every major specification category. The most obvious contrast is core count: the Opteron 6234 has 12 cores and 12 threads, while the Core i5-3570S has 4 cores and 4 threads. This 3x core advantage is the Opteron's primary asset, yet it fails to yield benchmark wins.

Clock speeds favor Intel decisively. The Opteron runs at 2.40 GHz base and 3.00 GHz boost. The Core i5 runs at 3.10 GHz base and 3.80 GHz boost. That is a 0.70 GHz higher base clock and 0.80 GHz higher boost clock for the Intel part, which explains its single-core dominance.

Thermal design power also diverges sharply. The Opteron consumes 115 W, while the Core i5 consumes 65 W. The Core i5 delivers superior performance at nearly half the power budget, reflecting the efficiency gap between 32 nm GlobalFoundries and 22 nm Intel processes.

The process nodes and foundries differ: AMD uses 32 nm at GlobalFoundries, Intel uses 22 nm at Intel. Transistor count is only recorded for the Opteron (2,400 million), while the Core i5's transistor count is not listed. Die size is massively different: the Opteron uses a dual-die design at 2x 315 mm², totaling 630 mm², while the Core i5 is a single 133 mm² die. The Opteron is nearly five times larger in silicon area.

Cache hierarchies follow different philosophies. The Opteron has 768 KB L1, 2 MB L2 per module, and 8 MB L3 per die. The Core i5 has 64 KB L1 per core, 256 KB L2 per core, and 6 MB shared L3. The Opteron's total L3 varies by die configuration, while the Core i5 has a fixed 6 MB shared pool.

Memory support shows the server-desktop split. The Opteron uses quad-channel DDR3 with 51.2 GB/s bandwidth and ECC. The Core i5 uses dual-channel DDR3 with no bandwidth figure recorded and no ECC.

PCIe generation differs: the Opteron uses Gen 2, while the Core i5 uses Gen 3 with 16 lanes from the CPU. Integrated graphics are absent on the Opteron but present on the Core i5 as Intel HD 2500.

Sockets and platforms are incompatible: AMD Socket G34 for the Opteron, Intel Socket 1155 for the Core i5. The market segments reflect their intended use: the Opteron is a server/workstation part with an end-of-life status, while the Core i5 is a desktop part. The Opteron has a recorded launch MSRP of $377, while the Core i5 has no launch MSRP listed. Both have locked multipliers, and their part numbers are OS6234WKTCGGU for AMD and SR0T9 for Intel. The release dates are separated by roughly six months, with AMD launching on 2011-11-13 and Intel on 2012-05-31.