AMD Ryzen 7 4800HS vs Intel Core i7-5820K Comparison

Head-to-Head Benchmarks

The benchmark data presents a decisive outcome: the AMD Ryzen 7 4800HS wins every recorded head-to-head comparison against the Intel Core i7-5820K. The most dramatic margin appears in Cinebench R15 multi-core, where the AMD part scores 1700.5 against Intel's 841, a 102.2% advantage. This is more than double the older processor's rendering throughput, a gap that reflects fundamental architectural and generational differences.

Single-core performance tells a similar story, though with a smaller margin. The Ryzen 7 4800HS posts 186.5 in Cinebench R15 single-core, while the Core i7-5820K manages 118, putting the AMD chip 58.1% ahead. In Geekbench, the Ryzen 7 4800HS scores 7019 multi-core and 1320 single-core, compared to 5464 and 1174 for the Intel part, yielding deltas of 28.5% and 12.4% respectively. Even where the gap narrows, as in Geekbench single-core, the AMD processor still holds a clear edge.

The Intel Core i7-5820K also carries additional benchmark records in the database: Cinebench R20 multi-core at 3508, R20 single-core at 495, R23 multi-core at 8354, and R23 single-core at 1179. These scores were not part of the direct head-to-head set, but they provide context for its overall standing. The Ryzen 7 4800HS has no recorded R20 or R23 scores in the database, so comparisons in those workloads are not possible from the data available.

The overall average benchmark scores align with the head-to-head results. The Intel Core i7-5820K averages 2642, while the Ryzen 7 4800HS averages 2557. That puts the Intel part slightly ahead in the aggregate, but this is misleading because the averages include different test sets. The Intel CPU has eight recorded benchmarks, while the AMD chip has four. The direct comparisons, where both were tested on identical workloads, all favor the Ryzen 7 4800HS.

Percentile rankings place both processors at the 49th percentile among all CPUs in the database, meaning they sit at the midpoint of the recorded distribution. The Ryzen 7 4800HS's nearest rivals by average score include the Intel Xeon E5-4640 v3 (2550, delta 0.3%), the Intel Xeon E5-1650 v3 (2545, delta 0.5%), the AMD Ryzen 9 4900HS (2573, delta -0.6%), and the Intel Core i3-10325 (2530, delta 1.1%). For the Intel Core i7-5820K, the nearest rivals are the Intel Xeon E-2274G (2643, delta 0%), the Intel Core i9-8950HK (2641, delta 0.1%), the Intel Core i7-1195G7 (2638, delta 0.1%), and the Intel Core i7-7740X (2648, delta -0.2%). These close deltas indicate that both processors sit in a crowded performance band, but the head-to-head numbers show the AMD chip is the stronger of the two in the tested workloads.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The AMD Ryzen 7 4800HS wins all recorded multi-core tests. In Cinebench R15 multi-core, it scores 1700.5 versus 841 for the Intel Core i7-5820K, a 102.2% advantage. In Geekbench multi-core, the AMD part scores 7019 against 5464, a 28.5% lead.

Q: How do the single-core scores compare?

A: The AMD Ryzen 7 4800HS leads in both single-core tests. Cinebench R15 single-core shows 186.5 for AMD versus 118 for Intel, a 58.1% gap. Geekbench single-core shows 1320 versus 1174, a 12.4% difference.

Q: Does the Intel Core i7-5820K win any benchmark in the head-to-head comparison?

A: No. The recorded head-to-head set includes four tests, and the Intel Core i7-5820K loses all four. The data records 4 wins for the AMD Ryzen 7 4800HS and 0 wins for the Intel part.

Q: What is the overall performance percentile for each processor?

A: Both processors are at the 49th percentile among all CPUs in the database. This places them at the same relative standing across the full recorded CPU population, despite the Intel part having a higher average benchmark score from a larger test set.

Q: What are the average benchmark scores?

A: The AMD Ryzen 7 4800HS has an average benchmark score of 2557. The Intel Core i7-5820K has an average benchmark score of 2642. The Intel part's average is based on more recorded tests, including Cinebench R20 and R23, which the AMD chip does not have in the database.

Q: How does the AMD Ryzen 7 4800HS compare to its nearest rivals?

A: The closest rival by average score is the AMD Ryzen 9 4900HS at 2573, which is 0.6% higher. The Intel Xeon E5-4640 v3 at 2550 is 0.3% lower, and the Intel Xeon E5-1650 v3 at 2545 is 0.5% lower. The Intel Core i3-10325 at 2530 is 1.1% lower.

Architecture Differences

The two processors come from different eras and design philosophies. The AMD Ryzen 7 4800HS uses the Zen 2 architecture, codenamed Renoir, built on a 7 nm process at TSMC. It packs 9,800 million transistors into a 156 mm² die. The Intel Core i7-5820K uses the Haswell architecture, codenamed Haswell-E, built on a 22 nm process at Intel, with 2,600 million transistors on a 356 mm² die. The process node difference is stark: 7 nm versus 22 nm, which explains the transistor density advantage for AMD despite the smaller die.

Core counts differ as well. The AMD Ryzen 7 4800HS has 8 cores and 16 threads, while the Intel Core i7-5820K has 6 cores and 12 threads. This two-core, four-thread advantage contributes directly to the multi-core benchmark results. Cache hierarchies also diverge. Both share 64 KB of L1 cache per core, but the AMD chip has 512 KB of L2 per core, while the Intel chip has 256 KB per core. L3 cache is shared: the AMD part has 8 MB shared, while the Intel part has 15 MB shared. The larger L3 on the Intel chip does not compensate for the core and clock disadvantages in the recorded tests.

Clock speeds favor the AMD part. The Ryzen 7 4800HS has a base clock of 2.90 GHz and a boost clock of 4.20 GHz. The Core i7-5820K has a base clock of 3.30 GHz and a boost clock of 3.60 GHz. The Intel chip starts higher but boosts lower, and the AMD chip's higher boost ceiling gives it a single-core advantage in the benchmarks.

Memory support also differs. Both support DDR4, but the AMD chip also supports LPDDR4, while the Intel chip does not. Memory bus width differs: the AMD part uses dual-channel, the Intel part uses quad-channel. The Intel chip has a higher theoretical memory bandwidth at 68.3 GB/s versus 51.2 GB/s for the AMD part. The Intel chip also has more PCIe lanes, listed as Gen 3 with 28 lanes (CPU only), while the AMD part is simply listed as Gen 3 without lane count.

Integrated graphics are present only on the AMD side. The Ryzen 7 4800HS includes Radeon Graphics with 448 SP. The Intel Core i7-5820K has no integrated graphics. The AMD chip is an unlocked multiplier? No, the Ryzen 7 4800HS has a locked multiplier, while the Intel Core i7-5820K has an unlocked multiplier. Production status differs too: the AMD part is active, while the Intel part is end-of-life. Release dates show the Intel chip launched in 2014, while the AMD chip launched in 2020.

The Verdict

The data supports a clear choice for most workloads: the AMD Ryzen 7 4800HS is the faster processor in every direct comparison recorded. Multi-core rendering shows a 102.2% advantage in Cinebench R15, and single-core shows a 58.1% lead in the same test suite. Geekbench results confirm the trend with 28.5% and 12.4% leads in multi-core and single-core respectively. The Intel Core i7-5820K does not win a single head-to-head test.

The Intel part does have a higher average benchmark score of 2642 versus 2557, but this stems from additional test data in Cinebench R20 and R23, not from superior performance in the shared tests. Both processors sit at the 49th percentile, and their nearest rivals cluster within about 1% of their average scores, indicating a dense competitive field around these performance levels.

The AMD Ryzen 7 4800HS is the better choice for users prioritizing raw performance in the tested workloads, particularly multi-threaded tasks where the extra cores and higher boost clock matter. The Intel Core i7-5820K retains the advantage of an unlocked multiplier, which matters for overclocking, and it has quad-channel memory support with higher bandwidth. However, the benchmark data does not show any workload where the Intel chip beats the AMD chip. The verdict is straightforward: the AMD Ryzen 7 4800HS wins on measured performance, while the Intel Core i7-5820K offers platform features that may appeal to specific users, but not enough to overcome the performance deficit in the recorded results.

Specification Differences

| Specification | AMD Ryzen 7 4800HS | Intel Core i7-5820K |

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

| Cores | 8 | 6 |

| Threads | 16 | 12 |

| Base Clock | 2.90 GHz | 3.30 GHz |

| Boost Clock | 4.20 GHz | 3.60 GHz |

| TDP | 45 W | 140 W |

| Socket | AMD Socket FP6 | Intel Socket 2011-3 |

| Architecture | Zen 2 | Haswell |

| Codename | Renoir | Haswell-E |

| Process Node | 7 nm | 22 nm |

| Foundry | TSMC | Intel |

| Transistors | 9,800 million | 2,600 million |

| Die Size | 156 mm² | 356 mm² |

| L2 Cache | 512 KB (per core) | 256 KB (per core) |

| L3 Cache | 8 MB (shared) | 15 MB (shared) |

| Memory Support | DDR4, LPDDR4 | DDR4 |

| Memory Bus | Dual-channel | Quad-channel |

| Memory Bandwidth | 51.2 GB/s | 68.3 GB/s |

| PCIe | Gen 3 | Gen 3, 28 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics 448SP | None |

| Market Segment | Mobile | Desktop |

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

| Release Date | 2020-01-05 | 2014-08-31 |

| Multiplier Unlocked | No | Yes |

| Part Number | 100-000000098 | SR20S |

Where Each One Wins

The AMD Ryzen 7 4800HS wins in every benchmark category where both processors have recorded results. Multi-threaded workloads are its strongest area, with a 102.2% lead in Cinebench R15 multi-core and a 28.5% lead in Geekbench multi-core. The combination of 8 cores, 16 threads, and a 4.20 GHz boost clock makes it the clear choice for rendering, compilation, and other parallel tasks. Single-threaded performance also favors the AMD chip, with a 58.1% lead in Cinebench R15 single-core and 12.4% in Geekbench single-core. The higher boost clock and newer architecture overcome the Intel chip's higher base clock.

The Intel Core i7-5820K does not win any recorded benchmark, but it has platform advantages that could matter in specific configurations. Its quad-channel memory bus provides 68.3 GB/s of bandwidth, which is 33.5% higher than the AMD chip's 51.2 GB/s. This could benefit memory-bandwidth-sensitive workloads, though no such benchmark appears in the head-to-head data. The unlocked multiplier allows overclocking, which could narrow the performance gap in custom setups, but the database records only stock results. The Intel chip also has 28 PCIe Gen 3 lanes, which supports more expansion devices directly from the CPU.

For users who need integrated graphics, the AMD Ryzen 7 4800HS is the only option of the two, as the Intel Core i7-5820K has none. The AMD chip's mobile segment designation and 45 W TDP contrast sharply with the Intel chip's desktop segment and 140 W TDP, making the AMD part far more suitable for power-constrained systems. The Intel part is end-of-life, while the AMD part remains active, indicating continued availability. The data shows the AMD Ryzen 7 4800HS as the overall performance winner, while the Intel Core i7-5820K retains niche advantages in memory bandwidth, expansion lanes, and overclocking flexibility.