AMD A10-5800B vs AMD A10-5800K Comparison

Where Each One Wins

The AMD A10-5800B takes the lead in both recorded benchmark categories, making it the stronger performer in this comparison. The A10-5800B wins the Geekbench multicore test with a score of 1128 against the A10-5800K's 1102, a 2.4% advantage. In single-core performance, the A10-5800B again comes out ahead, scoring 459 versus 454, a 1.1% edge. The A10-5800K has no wins in this head-to-head matchup.

Looking at the broader database, both processors sit at the 21st percentile among all CPUs tracked, meaning they occupy the same tier in the overall performance distribution. The A10-5800B posts an average benchmark score of 794, while the A10-5800K averages 778. That 16-point gap places the A10-5800B just ahead of rivals like the AMD A6-9400 (794, delta -0.1%) and AMD A10-7850K (796, delta -0.3%), while the A10-5800K aligns closely with the Intel Pentium G4520 (778, delta 0%) and AMD Athlon X4 760K (777, delta 0.2%).

For workloads that lean on multi-threaded performance, such as content rendering or compilation tasks, the A10-5800B's higher multicore score gives it a slight but measurable advantage. For everyday responsiveness and lightly threaded applications, the single-core result points the same direction. The data consistently favors the A10-5800B, though the margins are modest. Users choosing between these two parts should expect nearly identical experiences in most scenarios, with the A10-5800B holding a small but consistent edge across the recorded tests.

Architecture Differences

Both processors share the same fundamental design. They use the Piledriver architecture under the Trinity codename, built on a 32 nm process at GlobalFoundries. Each chip integrates 1,303 million transistors on a 246 mm² die. The core configuration is identical: four cores and four threads, with base and boost clocks of 3.80 GHz and 4.20 GHz respectively. Both parts draw 100 watts of thermal design power and fit into the AMD Socket FM2.

Cache layouts match exactly. Each processor has 192 KB of L1 cache and 4 MB of shared L2 cache, with no L3 cache present. Memory support is likewise identical: DDR3 memory, dual-channel bus, and 29.9 GB/s of memory bandwidth. ECC memory is not supported on either chip. PCIe connectivity is Gen 2 on both.

The integrated graphics are the same Radeon HD 7660D on each processor. The market segment for both is desktop, and both carry an end-of-life production status. Both were released on the same date, October 1, 2012.

The single architectural difference between the two parts is the unlocked multiplier. The A10-5800K has an unlocked multiplier, while the A10-5800B does not. This means the K variant allows user-controlled overclocking through multiplier adjustment, while the B variant is locked. The part numbers confirm this distinction: the A10-5800B is AD580BWOA44HJ, while the A10-5800K is AD580KWOA44HJAD580KWOHJBOX. No other architectural or feature differences exist in the recorded data.

Head-to-Head Benchmarks

The Geekbench multicore test shows the A10-5800B scoring 1128 against the A10-5800K's 1102. That 26-point difference translates to a 2.4% delta in favor of the A10-5800B. This is the larger of the two performance gaps between these processors.

In the Geekbench single-core test, the A10-5800B scores 459 while the A10-5800K scores 454. The 5-point margin produces a 1.1% delta, again favoring the A10-5800B. While smaller in percentage terms than the multicore gap, the single-core result reinforces the same conclusion: the A10-5800B is the faster part in both measured dimensions.

The average benchmark scores tell a consistent story. The A10-5800B averages 794 across all recorded tests, while the A10-5800K averages 778. The A10-5800B's nearest rivals in the database include the AMD A6-9400 (794, delta -0.1%), AMD A10-7850K (796, delta -0.3%), AMD Ryzen Embedded R1606G (797, delta -0.3%), and Intel Core 2 Extreme QX9770 (790, delta 0.5%). These tight deltas place the A10-5800B in a cluster of processors with nearly identical average performance.

The A10-5800K's nearest rivals are similarly close: Intel Pentium G4520 (778, delta 0%), AMD Athlon X4 760K (777, delta 0.2%), Intel Pentium Silver J5005 (776, delta 0.3%), and Intel Core i3-7100 (781, delta -0.4%). The K variant sits in a performance neighborhood where no rival moves more than 0.4% away from its average score.

Across both processors, the benchmark data shows a narrow but consistent performance hierarchy. The A10-5800B leads in every recorded test, with the multicore advantage roughly double the single-core advantage in percentage terms. Neither chip separates itself dramatically from its closest competitors, but the B variant maintains a measurable edge over the K variant in all measured categories.

Specification Differences

The two processors are nearly identical in specification, differing in only a few recorded fields. The table below highlights where they diverge:

| Field | AMD A10-5800B | AMD A10-5800K |

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

| Multiplier Unlocked | No | Yes |

| Part Number | AD580BWOA44HJ | AD580KWOA44HJAD580KWOHJBOX |

| Geekbench Multicore Score | 1128 | 1102 |

| Geekbench Singlecore Score | 459 | 454 |

| Average Benchmark Score | 794 | 778 |

| Nearest Rival (Avg Score) | AMD A6-9400 (794) | Intel Pentium G4520 (778) |

All other specifications are shared. Both processors use 4 cores, 4 threads, a 3.80 GHz base clock, and a 4.20 GHz boost clock. TDP is 100 watts for both. Socket type is AMD Socket FM2. Architecture is Piledriver with the Trinity codename. Process node is 32 nm at GlobalFoundries. Transistor count is 1,303 million, and die size is 246 mm². Cache configuration is 192 KB L1 and 4 MB shared L2, with no L3. Memory support is DDR3 dual-channel at 29.9 GB/s bandwidth, with no ECC support. PCIe is Gen 2. Integrated graphics are Radeon HD 7660D. Market segment is desktop, production status is end-of-life, and release date is October 1, 2012 for both.

The unlocked multiplier on the A10-5800K is the defining differentiator. It enables overclocking that the A10-5800B cannot offer, which may matter to enthusiasts. However, the recorded benchmark scores show the locked A10-5800B outperforming the unlocked A10-5800K in both tests, suggesting that the stock performance of the B variant is slightly superior despite lacking overclocking headroom.

FAQ

Q: Which processor has better multicore performance?

A: The AMD A10-5800B scores 1128 on Geekbench multicore, while the AMD A10-5800K scores 1102. The A10-5800B leads by 2.4%.

Q: Are these processors the same architecturally?

A: Yes, both use the Piledriver architecture with the Trinity codename, built on a 32 nm process at GlobalFoundries. Both have 4 cores, 4 threads, 192 KB L1 cache, and 4 MB shared L2 cache.

Q: What is the main feature difference between the two?

A: The A10-5800K has an unlocked multiplier, while the A10-5800B does not. This allows overclocking on the K variant but not on the B variant.

Q: Do both processors have the same clock speeds?

A: Yes, both have a 3.80 GHz base clock and a 4.20 GHz boost clock.

Q: How do these processors compare to their nearest rivals?

A: The A10-5800B averages 794, nearly matching the AMD A6-9400 (794, -0.1%) and AMD A10-7850K (796, -0.3%). The A10-5800K averages 778, matching the Intel Pentium G4520 (778, 0%) and closely tracking the AMD Athlon X4 760K (777, 0.2%).

Q: Which processor has a higher average benchmark score?

A: The A10-5800B has an average benchmark score of 794, while the A10-5800K averages 778, a 16-point difference in favor of the A10-5800B.