AMD A10-5800B vs Intel Pentium Silver J5040 Comparison

The Intel Pentium Silver J5040 and AMD A10-5800B are both end-of-life, quad-core, quad-thread processors, yet they represent vastly different eras and design philosophies. The data shows the Pentium Silver J5040 is the more efficient and modern part, with average benchmark scores of 801 versus 794 for the A10-5800B. While the overall performance gap is minimal, the J5040 achieves this with a 10W TDP compared to the A10-5800B’s 100W TDP, making it the clear choice for low-power, compact, or passively cooled systems. The A10-5800B, with its higher clock speeds and larger die, is better suited for scenarios where raw single-threaded speed from a legacy desktop platform is prioritized, but its age and power draw make it a poor fit for modern, energy-conscious builds. The data suggests the J5040 is the superior all-rounder for everyday tasks, while the A10-5800B only makes sense for users with a specific need for its older FM2 platform and higher base clocks.

The Verdict

The benchmark results indicate that the Intel Pentium Silver J5040 and AMD A10-5800B are nearly identical in overall performance, with the J5040 holding a marginal 0.9% lead in average benchmark scores (801 vs. 794). However, this statistical tie masks a fundamental divergence in their design goals.

For users building a new, low-power system, the J5040 is the definitive pick. Its 10W TDP is a fraction of the A10-5800B’s 100W, and it supports modern DDR4 memory with higher bandwidth (38.4 GB/s vs. 29.9 GB/s). The J5040’s 14nm process node and smaller 93 mm² die size make it vastly more efficient. The data shows it scores 276 in Cinebench R15 multi-core, which is competitive with the A10-5800B’s overall standing, despite the AMD part’s higher clock speeds. The J5040 is the only sensible choice for a compact, always-on, or fanless system.

The A10-5800B, on the other hand, is a relic from a different era. Its 3.80 GHz base and 4.20 GHz boost clocks are significantly higher than the J5040’s 2.00 GHz base and 3.20 GHz boost, which gives it an advantage in legacy single-threaded workloads that do not scale with core count. However, its 32nm Piledriver architecture is inefficient, and its 100W TDP requires a substantial cooling solution. The data shows its Geekbench single-core score of 459, but this comes at a massive power cost. This chip is only relevant for someone who already owns an FM2 motherboard and needs a drop-in upgrade, as its launch MSRP was not provided and it is end-of-life.

In summary, the J5040 wins on efficiency, memory support, and modern features. The A10-5800B wins on raw clock speed and legacy platform compatibility. The J5040 is the recommended purchase for any new build; the A10-5800B is only for niche, upgrade-path scenarios. The data strongly favors the Intel part for its near-identical performance at a tenth of the power draw.

Architecture Differences

The architectural divide between these two processors is stark. The J5040 is built on Intel’s Goldmont Plus microarchitecture, using a 14nm process node, while the A10-5800B uses AMD’s Piledriver architecture on a 32nm node. This process advantage alone explains most of the efficiency gap.

The J5040’s cache layout is per-core for L1 (56 KB per core) and a shared 4 MB L2. The A10-5800B has a larger total L1 cache (192 KB) and a similar shared 4 MB L2. Neither processor has L3 cache. The J5040’s memory support is DDR4, running on a dual-channel bus with 38.4 GB/s bandwidth. The A10-5800B is limited to DDR3, also dual-channel, but with a lower 29.9 GB/s bandwidth. This memory difference is significant for iGPU performance and memory-bound tasks.

The integrated graphics also differ: the J5040 features UHD Graphics 605, while the A10-5800B has the Radeon HD 7660D. The J5040’s PCIe support is limited to Gen 2 with 6 lanes from the CPU, while the A10-5800B also uses Gen 2, but the lane count is not specified. The J5040 is a mobile-market part on the Intel BGA 1090 socket, whereas the A10-5800B is a desktop part on AMD Socket FM2. The A10-5800B has a much larger die size (246 mm²) and 1,303 million transistors, compared to the J5040’s 93 mm², reflecting the older, less dense manufacturing process.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Pentium Silver J5040 has an average benchmark score of 801, which is slightly higher than the AMD A10-5800B’s 794, representing a 0.9% difference.

Q: How do their power requirements compare?

A: The J5040 has a TDP of 10W, while the A10-5800B has a TDP of 100W. The J5040 uses 90% less power, making it dramatically more energy-efficient.

Q: What memory types do they support?

A: The J5040 supports DDR4 memory with a dual-channel bus and 38.4 GB/s bandwidth. The A10-5800B supports DDR3 memory with a dual-channel bus and 29.9 GB/s bandwidth.

Q: Are these processors unlocked for overclocking?

A: No. Both the J5040 and the A10-5800B have a multiplierUnlocked field set to false, meaning they are locked and cannot be overclocked.

Q: What are the clock speed differences?

A: The A10-5800B has a base clock of 3.80 GHz and a boost clock of 4.20 GHz. The J5040 has a base clock of 2.00 GHz and a boost clock of 3.20 GHz. The AMD part runs at significantly higher frequencies.

Q: Which processor is newer?

A: The J5040 was released on 2019-11-03, while the A10-5800B was released on 2012-10-01. The J5040 is seven years newer.

Specification Differences

| Specification | Intel Pentium Silver J5040 | AMD A10-5800B |

| :--- | :--- | :--- |

| Manufacturer | Intel | AMD |

| Base Clock | 2000.00 MHz | 3.80 GHz |

| Boost Clock | 3.20 GHz | 4.20 GHz |

| TDP | 10W | 100W |

| Socket | Intel BGA 1090 | AMD Socket FM2 |

| Architecture | Goldmont Plus | Piledriver |

| Codename | Gemini Lake | Trinity |

| Process Node | 14 nm | 32 nm |

| Foundry | Intel | GlobalFoundries |

| Die Size | 93 mm² | 246 mm² |

| Transistors | Not specified | 1,303 million |

| L1 Cache | 56 KB (per core) | 192 KB |

| Memory Support | DDR4 | DDR3 |

| Memory Bandwidth | 38.4 GB/s | 29.9 GB/s |

| PCIe | Gen 2, 6 Lanes (CPU only) | Gen 2 |

| Integrated Graphics | UHD Graphics 605 | Radeon HD 7660D |

| Market Segment | Mobile | Desktop |

| Release Date | 2019-11-03 | 2012-10-01 |

| Launch MSRP | $161 | Not provided |

| Part Number | SRFDB | AD580BWOA44HJ |

Head-to-Head Benchmarks

The head-to-head benchmark data is sparse, but the individual scores reveal a clear pattern. The J5040’s Cinebench results are its strongest evidence of competence. It scores 276 in Cinebench R15 multi-core and 91 in single-core. In the newer Cinebench R20, it scores 1150 multi-core and 162 single-core. Its Cinebench R23 scores are 2739 multi-core and 386 single-core.

The A10-5800B only has Geekbench scores available: 1128 multi-core and 459 single-core. The single-core score of 459 is substantially higher than the J5040’s Cinebench R15 single-core score of 91, but these are different benchmarks, so a direct comparison is not possible. However, the geekbench multi-core score of 1128 for the A10-5800B, when compared to the J5040’s average score of 801, suggests the A10-5800B is competitive in multi-threaded tasks.

Looking at the nearest rivals provides context. The J5040’s average score of 801 is exactly tied with the AMD A10-7700K and Intel Xeon E5530, and it is only 0.2% behind the Intel Core i5-3320M and 0.5% behind the AMD Ryzen 3 2200U. The A10-5800B’s score of 794 is 0.1% behind the AMD A6-9400, 0.3% behind the AMD A10-7850K and AMD Ryzen Embedded R1606G, and 0.5% ahead of the Intel Core 2 Extreme QX9770. This places both chips in the same performance tier, roughly equivalent to a mid-range processor from around 2012-2017.

The biggest win for the J5040 is its efficiency. It matches the A10-5800B’s performance class while using 10W instead of 100W. The biggest win for the A10-5800B is its raw clock speed. Its 4.20 GHz boost clock is 31% higher than the J5040’s 3.20 GHz, which likely translates to better performance in lightly-threaded, clock-sensitive applications. The J5040’s Cinebench R23 multi-core score of 2739 indicates it can handle modern multi-threaded workloads, but the A10-5800B’s higher clocks make it the better choice for older software that relies on single-thread speed. In the end, the data shows a performance tie, but the J5040’s modern architecture and power profile make it the more compelling product overall.