AMD Opteron 6234 vs Intel Core i5-3330 Comparison

The Intel Core i5-3330 and AMD Opteron 6234 are a study in contrasts: a quad-core desktop chip from Intel’s Ivy Bridge generation versus a 12-core server processor from AMD’s Bulldozer architecture. Despite the Opteron’s threefold core-count advantage, benchmark data shows the two chips landing within a single percentage point of each other across every tested workload. The i5-3330 wins all five head-to-head Cinebench tests, but the margins are razor-thin, ranging from 0.7% to 1.0%. The average benchmark scores tell the same story: the Intel part sits at 1200, while the AMD part trails at 1191, a gap of roughly 0.8%. In percentile terms, the i5-3330 ranks at the 34th percentile of all CPUs, with the Opteron 6234 just one point behind at the 33rd percentile.

Head-to-Head Benchmarks

The largest single victory for the Intel Core i5-3330 comes in the Cinebench R20 single-core test, where it scores 206 against the Opteron’s 204, a 1.0% delta. This is a meaningful result given the architectural gulf between the two: the i5-3330 relies on four full cores with a 3.00 GHz base and 3.20 GHz boost clock, while the Opteron 6234’s 12 cores run at a 2.40 GHz base and 3.00 GHz boost. The Intel chip’s higher clocks and more efficient Ivy Bridge design allow it to edge ahead even when only a single thread is active.

In multi-core workloads, the pattern repeats but with slightly smaller margins. The Cinebench R15 multicore test shows the i5-3330 at 351 points versus 348 for the Opteron, a 0.9% delta. The Cinebench R20 multicore run yields 1464 for Intel and 1453 for AMD, a 0.8% gap. The Cinebench R23 multicore test follows suit: 3486 for the i5-3330 and 3461 for the Opteron, again a 0.7% delta. The Cinebench R23 single-core result is 492 versus 488, an 0.8% margin. Across all five tests, the Intel part wins by a cumulative average of roughly 0.84% per test, despite the Opteron having triple the core count and a much larger die.

The data indicates that the Opteron’s 12 cores do not translate into a multi-threaded advantage in these Cinebench workloads. The Bulldozer architecture’s shared floating-point units and module-based design likely cap its throughput, while the i5-3330’s four independent cores deliver comparable or better results with far fewer resources. The Opteron 6234’s nearest rivals include the Intel Core i5-4460T (avg score 1190, delta 0.1%) and Intel Core i3-4170 (avg score 1193, delta -0.2%), placing it in the same performance tier as Intel’s mid-range desktop parts from a later generation. The i5-3330, meanwhile, sits alongside the AMD Athlon PRO 200GE (avg score 1200, delta 0%) and AMD Ryzen 3 2200G (avg score 1202, delta -0.2%), showing that a 2012 quad-core can still match modern entry-level chips.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Core i5-3330 is built on a 22 nm process at Intel’s foundry, with a die size of 133 mm². It features four cores and four threads, with a 64 KB L1 cache per core, a 256 KB L2 cache per core, and a shared 6 MB L3 cache. The architecture is Ivy Bridge, the third iteration of Intel’s Core microarchitecture, and it supports DDR3 memory over a dual-channel bus. The chip includes integrated Intel HD 2500 graphics, though it has no ECC memory support. It uses a PCIe Gen 3 interface with 16 lanes available from the CPU, and it fits into Intel Socket 1155.

The AMD Opteron 6234 is a completely different beast. It uses the Bulldozer architecture under the codename Interlagos, built on a 32 nm process at GlobalFoundries. The die is massive: two 315 mm² dies for a combined 2,400 million transistors. It packs 12 cores and 12 threads, organized into modules, with a 768 KB L1 cache, 2 MB L2 cache per module, and 8 MB L3 cache per die. Memory support includes DDR3 over a quad-channel bus, with a stated memory bandwidth of 51.2 GB/s, and ECC memory is supported. The chip uses PCIe Gen 2 and targets the server/workstation segment, fitting into AMD Socket G34. It has no integrated graphics.

These architectural choices explain the performance parity. The i5-3330’s smaller, denser 22 nm process and dedicated per-core caches allow it to extract more instructions per clock than the Opteron’s 32 nm modules. The Opteron compensates with raw core count and a quad-channel memory bus, but the benchmark results show that this does not overcome the Intel chip’s per-core efficiency in Cinebench. The Opteron’s 115 W TDP is notably higher than the i5-3330’s 77 W, a direct consequence of its larger die and additional cores.

FAQ

Q: Which processor has higher single-core performance?

A: The Intel Core i5-3330 wins both single-core Cinebench tests. It scores 206 in R20 single-core versus 204 for the Opteron 6234 (a 1.0% delta) and 492 in R23 single-core versus 488 (a 0.8% delta).

Q: Does the Opteron’s 12-core count give it a multi-core advantage?

A: No. Despite having 12 cores versus the i5-3330’s 4, the Opteron loses all three multi-core tests. The margins are 0.9% in R15, 0.8% in R20, and 0.7% in R23, all favoring the Intel part.

Q: What are the memory bandwidth differences?

A: The Opteron 6234 supports quad-channel DDR3 with a rated bandwidth of 51.2 GB/s. The i5-3330 uses dual-channel DDR3 with no listed bandwidth figure, but the Opteron’s memory subsystem is architecturally wider.

Q: Do these processors support ECC memory?

A: Only the AMD Opteron 6234 supports ECC memory. The Intel Core i5-3330 does not list ECC support in its specifications.

Q: Which chip has a higher base clock?

A: The Intel Core i5-3330 has a base clock of 3.00 GHz, while the AMD Opteron 6234 has a base clock of 2.40 GHz. The boost clocks are 3.20 GHz for Intel and 3.00 GHz for AMD.

Q: What is the average benchmark score for each?

A: The i5-3330 has an average benchmark score of 1200, and the Opteron 6234 scores 1191. The i5-3330 ranks at the 34th percentile of all CPUs, while the Opteron sits at the 33rd percentile.

Specification Differences

The two processors differ across nearly every major specification category. The Intel Core i5-3330 has 4 cores and 4 threads, while the AMD Opteron 6234 has 12 cores and 12 threads. Base clocks are 3.00 GHz for Intel versus 2.40 GHz for AMD, with boost clocks of 3.20 GHz and 3.00 GHz, respectively. Thermal design power is 77 W for the i5-3330 and 115 W for the Opteron. The Intel chip uses a 22 nm process, while the Opteron uses 32 nm; the die sizes are 133 mm² versus 2x 315 mm². Transistor count is not listed for Intel but is 2,400 million for AMD.

Cache structures diverge significantly: the i5-3330 has 64 KB L1 per core, 256 KB L2 per core, and 6 MB shared L3, while the Opteron has 768 KB total L1, 2 MB L2 per module, and 8 MB L3 per die. Memory support is dual-channel DDR3 for Intel and quad-channel DDR3 for AMD, with the Opteron listing 51.2 GB/s bandwidth and ECC support, both absent from the Intel spec. PCIe generation is Gen 3 with 16 lanes for Intel versus Gen 2 for AMD. The i5-3330 includes Intel HD 2500 integrated graphics; the Opteron has none. Sockets are Intel Socket 1155 versus AMD Socket G34. The market segments are Desktop for Intel and Server/Workstation for AMD, with the Opteron marked as end-of-life. Release dates are September 2012 for Intel and November 2011 for AMD. The Opteron has a launch MSRP of $377; no launch MSRP is listed for the i5-3330.

The Verdict

The benchmark data presents a clear if counterintuitive picture: the Intel Core i5-3330 is the faster processor in every tested workload, despite having one-third the cores of the AMD Opteron 6234. The margins are small—never exceeding 1.0%—but they are consistent across all five Cinebench runs. For single-threaded tasks, the i5-3330’s higher base and boost clocks, combined with its more efficient Ivy Bridge architecture, deliver a 0.8% to 1.0% advantage. For multi-threaded tasks, the Opteron’s 12 cores fail to overcome the Intel chip’s per-core strength, with the i5-3330 winning those tests by 0.7% to 0.9%.

Who should pick which? The data suggests that the i5-3330 is the better choice for general-purpose desktop workloads where Cinebench-style rendering performance matters, since it achieves higher scores at lower power (77 W versus 115 W) and with integrated graphics included. The Opteron 6234, however, targets a different market: it supports ECC memory, uses a quad-channel memory bus with 51.2 GB/s bandwidth, and fits into a server/workstation platform with Socket G34. For a system requiring ECC reliability, multi-socket capability, or the Opteron’s specific memory configuration, the 12-core AMD part remains relevant despite its slightly lower benchmark scores. The i5-3330 is the performance winner in this head-to-head, but the Opteron’s platform features—not its raw compute speed—define its use case. The data ultimately shows two chips from different eras and segments converging on nearly identical Cinebench results, with the Intel part edging ahead across the board.