AMD Athlon PRO 3045B vs AMD Athlon X4 830 Comparison

Head-to-Head Benchmarks

The recorded data shows a clean sweep for the AMD Athlon X4 830 across all five Cinebench comparisons, though the margins are consistently narrow. The largest gap appears in Cinebench R20 single-core, where the Athlon X4 830 scores 146 against the Athlon PRO 3045B's 139, a 5% advantage. Every other test falls within a tight 4.6% to 4.8% range, indicating that despite architectural differences, the two processors land in a similar performance band.

In Cinebench R15 multi-core, the Athlon X4 830 posts 248 points versus 237 for the Athlon PRO 3045B, a 4.6% lead. The multi-core results in newer Cinebench versions tell the same story: R20 shows 1035 against 988 (4.8% ahead), and R23 shows 2465 against 2354 (4.7% ahead). The single-core tests follow the same pattern, with R23 single-core at 348 versus 332, again a 4.8% margin. The Athlon PRO 3045B does have one additional benchmark in the database, Geekbench multi-core (1287) and single-core (766), but no corresponding Athlon X4 830 score exists for direct comparison.

The average benchmark scores in the database reinforce the closeness: the Athlon X4 830 averages 848, while the Athlon PRO 3045B averages 872. That puts the PRO part slightly higher on average, despite losing every head-to-head Cinebench test. The explanation lies in the additional Geekbench results pulling the PRO's average upward, while the X4 830 has no Geekbench entries to offset its Cinebench wins. Both processors sit at the 23rd percentile among all CPUs in the database, so neither stands out as a performance outlier.

Looking at nearest rivals, the Athlon X4 830 sits within 0.9% of four comparable processors: it trails the Intel Xeon X5492 (852 average) by 0.4%, edges the Intel Core i7-3520M (843) by 0.6%, matches the AMD FX-8800P (843) with a 0.6% lead, and trails the Intel Core i5-5250U (856) by 0.9%. The Athlon PRO 3045B's nearest rivals are similarly close: it leads the Intel Atom C5315 (871) by 0.1%, trails the Intel Core i3-5157U (877) by 0.5%, leads the Intel Core i7-3540M (867) by 0.6%, and leads the Intel Xeon X3460 (866) by 0.6%. These deltas are all within noise-level margins, reinforcing that neither chip dramatically outperforms its immediate competitors.

Architecture Differences

The two processors come from entirely different AMD design eras. The Athlon X4 830 uses the Steamroller architecture on the Kaveri codename, built on a 28 nm process at GlobalFoundries. It packs 4 cores and 4 threads, with a base clock of 3.00 GHz and a boost clock of 3.40 GHz. The Athlon PRO 3045B uses the Zen architecture on the Dali codename, built on a 14 nm process, also at GlobalFoundries. It has 2 cores and 4 threads, with a base clock of 2.30 GHz and a boost clock of 3.20 GHz. The Zen part compensates for fewer physical cores with simultaneous multithreading, which the Steamroller chip lacks.

The transistor counts differ substantially: the Athlon X4 830 contains 2,411 million transistors across a 245 mm² die, while the Athlon PRO 3045B packs 3,500 million transistors into a much smaller 148 mm² die. That denser 14 nm process allows the PRO chip to include more transistors despite having fewer cores. Cache layouts also diverge. The Athlon X4 830 has 256 KB of L1 and 4 MB of L2, with no L3 cache. The Athlon PRO 3045B has 96 KB of L1 per core, 512 KB of L2 per core, and 4 MB of shared L3 cache. The presence of L3 on the Zen part gives it a structural advantage in certain workloads, even if the benchmark data does not always reflect that.

Memory support separates the two as well. The Athlon X4 830 supports DDR3 with dual-channel memory and a bandwidth of 34.1 GB/s, while the Athlon PRO 3045B supports DDR4 with dual-channel memory and 38.4 GB/s of bandwidth. The PRO chip also supports ECC memory, which the X4 830 does not. PCIe lanes differ: the X4 830 offers Gen 3 with 16 CPU lanes, while the PRO 3045B offers Gen 3 with 12 CPU lanes. The PRO part includes integrated Radeon Vega graphics (2 compute units), while the X4 830 lists no integrated graphics. The X4 830 has an unlocked multiplier; the PRO 3045B does not. Socket compatibility sets them far apart: the X4 830 uses AMD Socket FM2+, while the PRO 3045B uses AMD Socket FP5, reflecting the mobile-oriented design of the latter.

Where Each One Wins

The Athlon X4 830 wins every direct comparison in the database. Its strongest showing is in single-core performance, where it leads by 5% in Cinebench R20 single-core. The multi-core margins are nearly identical, hovering around 4.6% to 4.8% across R15, R20, and R23. This suggests the four physical cores of the Steamroller design provide a slight but consistent advantage over the two-core, four-thread Zen configuration in these Cinebench workloads. For users running applications that scale with physical core count and rely on Cinebench-style rendering, the X4 830 holds a measurable edge.

The Athlon PRO 3045B does not win any head-to-head test, but it posts additional Geekbench scores that the X4 830 lacks. The database records 1287 for Geekbench multi-core and 766 for Geekbench single-core on the PRO part. Without comparable X4 830 data, those numbers cannot be interpreted as a win, only as evidence that the PRO chip has been evaluated across a broader test suite. The PRO also carries features that matter outside pure CPU benchmarks: ECC memory support, integrated graphics, DDR4 compatibility, and a 15 W TDP compared to the X4 830's 65 W. The 15 W figure indicates a power profile suited to compact or mobile systems, while the X4 830 targets desktop builds with higher power headroom.

The average benchmark score favors the PRO 3045B (872 versus 848), but that number is influenced by the extra Geekbench entries. When looking strictly at the five shared Cinebench tests, the X4 830 is the winner across the board. The PRO's advantages are structural and qualitative, not reflected in the recorded Cinebench deltas.

The Verdict

The data points to a clear performance winner: the AMD Athlon X4 830 leads in every Cinebench test the database records, with margins between 4.6% and 5%. Anyone prioritizing raw multi-threaded or single-threaded Cinebench performance should choose the X4 830. Its four physical cores and higher clock speeds (3.00 GHz base, 3.40 GHz boost) deliver consistent results across R15, R20, and R23.

However, the Athlon PRO 3045B serves a different purpose. It is an active, mobile-market part with a 15 W TDP, integrated Radeon Vega graphics, ECC memory support, and DDR4 compatibility. The X4 830 is end-of-life, consumes 65 W, lacks integrated graphics, and relies on DDR3. For a system builder prioritizing power efficiency, memory features, or a modern socket platform (FP5 versus FM2+), the PRO 3045B offers capabilities the X4 830 cannot match. The 2-core Zen design with 4 threads also brings L3 cache, which the Steamroller chip lacks entirely.

The verdict depends on the use case. If the goal is maximum Cinebench performance on a desktop socket, the Athlon X4 830 is the choice. If the goal is a low-power, modern platform with ECC and integrated graphics, the Athlon PRO 3045B wins on features even though it loses on raw benchmark scores. Both sit at the 23rd percentile among all CPUs, so neither offers standout performance in absolute terms.

FAQ

Q: Which processor has higher multi-core performance in Cinebench R23?

A: The AMD Athlon X4 830 scores 2465 in Cinebench R23 multi-core, while the AMD Athlon PRO 3045B scores 2354. The X4 830 leads by 4.7%.

Q: Does the Athlon PRO 3045B support ECC memory?

A: Yes, the Athlon PRO 3045B supports ECC memory. The Athlon X4 830 does not support ECC.

Q: How do the two processors compare in single-core performance?

A: The Athlon X4 830 leads in single-core across all shared tests. In Cinebench R20 single-core, it scores 146 versus 139, a 5% advantage. In R23 single-core, it scores 348 versus 332, a 4.8% lead.

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

A: The Athlon X4 830 has a TDP of 65 W, while the Athlon PRO 3045B has a TDP of 15 W.

Q: Do both processors use the same socket?

A: No. The Athlon X4 830 uses AMD Socket FM2+, while the Athlon PRO 3045B uses AMD Socket FP5.

Q: Which processor has integrated graphics?

A: The Athlon PRO 3045B includes Radeon Vega (2 compute units) integrated graphics. The Athlon X4 830 lists no integrated graphics.

Specification Differences

| Specification | AMD Athlon X4 830 | AMD Athlon PRO 3045B |

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

| Series | None listed | 3000 series |

| Cores | 4 | 2 |

| Threads | 4 | 4 |

| Base Clock | 3.00 GHz | 2.30 GHz |

| Boost Clock | 3.40 GHz | 3.20 GHz |

| TDP | 65 W | 15 W |

| Socket | AMD Socket FM2+ | AMD Socket FP5 |

| Architecture | Steamroller | Zen |

| Codename | Kaveri | Dali |

| Process Node | 28 nm | 14 nm |

| Transistors | 2,411 million | 3,500 million |

| Die Size | 245 mm² | 148 mm² |

| L1 Cache | 256 KB | 96 KB (per core) |

| L2 Cache | 4 MB | 512 KB (per core) |

| L3 Cache | None | 4 MB (shared) |

| Memory Support | DDR3 | DDR4 |

| Memory Bandwidth | 34.1 GB/s | 38.4 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 3, 12 Lanes (CPU only) |

| Integrated Graphics | None | Radeon Vega (2CU) |

| Market Segment | Desktop | Mobile |

| Production Status | End-of-life | Active |

| Multiplier Unlocked | Yes | No |

| Part Number | AD830XYBI44JA | YM3045C4T2OFG |

| Average Benchmark Score | 848 | 872 |

| Percentile vs All CPUs | 23 | 23 |