CPU Comparison

The Intel Core i5-4430 and AMD Opteron 4284 are separated by a hair in benchmark results, yet they represent fundamentally different design philosophies. The data shows a near-total deadlock in raw performance, with the i5-4430 taking every single head-to-head contest by margins that barely register. However, the specifications reveal why these two chips end up in completely different systems.

Head-to-Head Benchmarks

The benchmark suite tells a story of extraordinary parity. In Cinebench R15 multi-core, the Intel Core i5-4430 scores 400 against the Opteron’s 399, a 0.3% margin. Single-core R15 is a perfect tie at 56 points each. Moving to Cinebench R20, the i5-4430 again edges ahead: 1669 versus 1665 in multi-core (0.2%) and 235 versus 234 in single-core (0.4%). The pattern holds through Cinebench R23, where the i5-4430 posts 3974 against 3965 in multi-core (0.2%) and 561 against 559 in single-core (0.4%).

What is striking is not that Intel wins all six tests, it does, but that the margins are so slim. A 0.2% to 0.4% difference is within run-to-run variance on most systems. The Opteron 4284, despite being a server part with twice the core count, matches the desktop i5 almost exactly across every workload. The average benchmark scores confirm this: the i5-4430 sits at 1149, while the Opteron trails at 1146, a 0.2% gap. Both chips rank in the same percentile neighborhood, 33rd for Intel, 32nd for AMD, meaning they sit at the same tier in the broader CPU landscape.

The nearest rival data reinforces the deadlock. The i5-4430’s closest competitor is the Core i7-3612QE at 1147 (0.2% behind), with the Opteron 4284 and Core i7-2600S both at 1146 (0.2-0.3% behind). For the Opteron, the i5-4430 is itself a nearest rival at 1149, a -0.3% delta. These two chips are effectively interchangeable in raw compute, which makes the architectural differences all the more interesting.

FAQ

Q: Which processor wins in multi-core workloads?

A: The Intel Core i5-4430 wins all three multi-core tests, but by razor-thin margins: 0.3% in Cinebench R15 (400 vs 399), 0.2% in R20 (1669 vs 1665), and 0.2% in R23 (3974 vs 3965). The Opteron 4284 is never more than 9 points behind.

Q: Is the Opteron 4284 faster in single-core tests?

A: No. The i5-4430 wins or ties every single-core test. R15 single-core is a tie at 56, while R20 and R23 show the Intel chip ahead by 0.4% (235 vs 234 and 561 vs 559 respectively).

Q: How do the core counts affect the benchmark results?

A: The Opteron 4284 has 8 cores and 8 threads, double the i5-4430’s 4 cores and 4 threads. Yet the Opteron does not convert this advantage into higher multi-core scores, it actually loses by 0.2-0.3% in those tests, suggesting Bulldozer’s shared resources do not scale like conventional cores.

Q: What memory features differ between these two?

A: Both support DDR3 and dual-channel memory. The Opteron 4284 adds ECC memory support and a listed memory bandwidth of 25.6 GB/s, while the i5-4430 has no ECC support and no bandwidth figure in the data.

Q: Which chip has better PCIe capabilities?

A: The Intel Core i5-4430 features PCIe Gen 3, while the AMD Opteron 4284 is limited to PCIe Gen 2. This is a notable difference for expansion and peripheral throughput.

Q: Do both chips share similar release timing?

A: No. The Opteron 4284 launched on 2011-11-13, while the i5-4430 arrived later on 2013-06-01. The Opteron is also marked as end-of-life, while the i5-4430’s production status is not specified.

Architecture Differences

The i5-4430 uses Intel’s Haswell architecture, built on a 22 nm process at Intel’s own foundry. It packs 1,400 million transistors into a 177 mm² die. The Opteron 4284 uses AMD’s Bulldozer architecture (codename Valencia), fabricated by GlobalFoundries on a 32 nm process, with 1,200 million transistors spread across a much larger 315 mm² die. The die size difference is stark, the AMD chip is nearly twice as large but has fewer transistors, reflecting the less dense older process.

Cache layouts are entirely different. The i5-4430 has 64 KB L1 per core and 256 KB L2 per core, with 6 MB of shared L3. The Opteron 4284 lists 384 KB L1 total, 8 MB L2, and 8 MB shared L3. The Opteron’s larger shared pools suggest a design aimed at feeding many threads, yet the benchmarks show it does not outperform the Intel chip in multi-threaded Cinebench runs.

The most fundamental divergence is in how cores are organized. The i5-4430 has 4 full cores with 4 threads, a conventional design. The Opteron 4284 has 8 cores and 8 threads, but Bulldozer modules share floating-point and fetch resources between pairs of integer cores. This explains why doubling the core count does not double the performance, the shared units become a bottleneck. The i5 also includes integrated Intel HD 4600 graphics, while the Opteron has none, reflecting its server target.

Specification Differences

| Specification | Intel Core i5-4430 | AMD Opteron 4284 |

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

| Cores / Threads | 4 / 4 | 8 / 8 |

| Boost Clock | 3.20 GHz | 3.70 GHz |

| TDP | 84 W | 95 W |

| Socket | Intel Socket 1150 | AMD Socket C32 |

| Process Node | 22 nm | 32 nm |

| Foundry | Intel | GlobalFoundries |

| Transistors | 1,400 million | 1,200 million |

| Die Size | 177 mm² | 315 mm² |

| L1 Cache | 64 KB (per core) | 384 KB |

| L2 Cache | 256 KB (per core) | 8 MB |

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

| ECC Memory | No | Yes |

| Memory Bandwidth | Not listed | 25.6 GB/s |

| PCIe | Gen 3 | Gen 2 |

| Integrated Graphics | Intel HD 4600 | None |

| Market Segment | Desktop | Server/Workstation |

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

| Release Date | 2013-06-01 | 2011-11-13 |

| Launch MSRP | Not listed | $316 |

| Part Number | SR14G | OS4284WLU8KGU |

The base clocks are identical at 3.00 GHz, but the Opteron boosts higher to 3.70 GHz versus the i5’s 3.20 GHz. Despite the higher boost, the Opteron still loses single-core tests, indicating that IPC (instructions per clock) favors Haswell significantly. The Opteron’s higher TDP (95 W vs 84 W) and larger die suggest it is less efficient per watt. The Opteron’s launch MSRP was $316, stated once here for reference.

Where Each One Wins

The i5-4430 wins every single benchmark in the head-to-head comparison, but the margins are so thin that "win" feels like a technicality. It takes the multi-core tests by 0.2-0.3% and single-core tests by 0-0.4%. Its advantages lie more in the platform: PCIe Gen 3 support, integrated graphics, a smaller die, lower TDP, and a more modern 22 nm process. For a desktop user, the i5-4430 offers a complete package without needing a discrete GPU for basic display output.

The Opteron 4284 does not win a single benchmark, yet it has structural advantages that matter outside of Cinebench. It supports ECC memory, which the i5 does not, making it viable for error-sensitive server workloads. Its 8 physical cores, even with Bulldozer’s shared resources, may handle certain multi-threaded server tasks differently than the 4-core i5. The Opteron also lists a specific memory bandwidth of 25.6 GB/s, while the i5 provides no such figure, suggesting memory throughput was a design priority for AMD.

In terms of longevity, the i5-4430 has no end-of-life marker, while the Opteron is explicitly end-of-life. The Opteron’s older 2011 release date and larger process node indicate it is from a previous generation. The i5-4430, released in 2013, represents newer design thinking.

The Verdict

The data points to a clear, if counterintuitive, conclusion: choose the Intel Core i5-4430 for any workload where benchmark scores are the primary metric. It wins all six head-to-head tests, holds a higher average benchmark score (1149 vs 1146), and ranks in a higher percentile (33rd vs 32nd). The i5 also offers platform benefits, PCIe Gen 3, integrated graphics, lower TDP, smaller die, that make it a more versatile and efficient choice for desktop use.

The AMD Opteron 4284 makes sense only if you specifically need ECC memory support or a server-class socket (AMD Socket C32). Its 8-core configuration did not translate into benchmark wins, and its end-of-life status makes it a risky foundation for new systems. The Opteron’s launch MSRP of $316 is noted, but the performance data does not justify choosing it over the i5-4430 in any tested scenario. The benchmark results show these two are peers in raw compute, but the i5-4430 is the one that comes out ahead in every measurable way.