AMD Ryzen 5 5600X3D vs Intel Core i7-11700KF Comparison

The Intel Core i7-11700KF and AMD Ryzen 5 5600X3D are both end-of-life desktop processors that land in the same performance tier, with average benchmark scores of 25423 and 25365, respectively. Both hold the 77th percentile among all CPUs, and their aggregate scores are within 0.2% of each other, making this a remarkably close contest that is decided by workload rather than overall capability.

Head-to-Head Benchmarks

The Intel Core i7-11700KF dominates the head-to-head matchup, winning 16 of 19 benchmark comparisons, while the AMD Ryzen 5 5600X3D takes only three. The largest Intel victories come in synthetic math and data-processing workloads. In PassMark floating point math, the Intel part scores 50571 against 37464 for AMD, a 35% advantage. Similarly, PassMark integer math shows Intel ahead by 30.2%, with scores of 85377 versus 65587. PassMark extended instructions favor Intel by 30.1% (22247 vs 17102), and random string sorting shows a 47.6% Intel lead (36309 vs 24597). Data compression is another strong Intel area, with a 28.4% margin (317712 vs 247365).

In multi-threaded rendering benchmarks, Intel maintains a consistent but smaller edge. Cinebench R23 multi-core results show Intel at 20214 versus AMD at 18603, an 8.7% difference. This pattern repeats across all Cinebench versions: R15 multi-core (2037 vs 1875, 8.6%), R20 multi-core (8489 vs 7813, 8.7%), and even single-core tests, where Intel leads by 8.6-8.7%. Geekbench multi-core shows Intel ahead by 12.6% (10565 vs 9386), while PassMark multi-thread indicates an 8.8% Intel advantage (23819 vs 21888). The Intel processor also wins PassMark single-thread by 5.7% (3368 vs 3187) and data encryption by a narrow 0.4% (15229 vs 15170).

The AMD Ryzen 5 5600X3D claims its wins in three specific areas. The most dramatic is PassMark find prime numbers, where AMD scores 181 against Intel's 62, a 65.7% advantage. PassMark physics shows AMD ahead by 59.8% (2453 vs 985). Geekbench single-core is the third AMD win, with a 7.1% margin (2086 vs 1938). These results show that while Intel leads broadly, AMD has specialized strengths that can be decisive in certain workloads.

Where Each One Wins

The Intel Core i7-11700KF is the clear choice for compute-heavy, multi-threaded productivity tasks. Its 8-core, 16-thread configuration delivers consistent 8.7% advantages across all Cinebench versions, making it well-suited for 3D rendering, video encoding, and other heavily threaded creative workloads. The data also shows Intel superiority in integer and floating-point math, which translates to scientific computing, financial modeling, and engineering simulations. The 30%+ lead in extended instructions and data compression points to advantages in encryption workloads, compression tools, and database operations. The 47.6% margin in random string sorting reinforces this, suggesting faster data manipulation and sorting tasks.

The AMD Ryzen 5 5600X3D wins in highly specific scenarios. The massive 65.7% lead in prime number finding indicates superior performance in certain mathematical algorithms, particularly those that benefit from large caches. The 59.8% physics advantage suggests this processor may handle game physics calculations more efficiently, which could translate to better gaming performance in physics-heavy titles. The single-core Geekbench win, while narrower at 7.1%, hints that the AMD architecture has strong single-threaded efficiency in some applications, even though it loses other single-thread tests.

For general-purpose use, the Intel processor offers more consistent performance across a wider range of benchmarks. The AMD part is more specialized, excelling in specific algorithmic patterns rather than broad throughput. Users running mixed workloads would likely see better average performance from the Intel chip, while those with workloads matching AMD's strengths could see significant benefits.

Architecture Differences

The two processors represent fundamentally different design philosophies. The Intel Core i7-11700KF uses the Rocket Lake architecture on a 14 nm process from Intel's own foundry, with a die size of 276 mm². It packs 8 cores and 16 threads, with base and boost clocks of 3.60 GHz and 5.00 GHz respectively. The AMD Ryzen 5 5600X3D uses the Zen 3 architecture codenamed Vermeer, built on TSMC's 7 nm process with a much smaller 74 mm² die. It has 6 cores and 12 threads, with base and boost clocks of 3.30 GHz and 4.40 GHz.

Cache configuration is where the two diverge most dramatically. The Intel chip has 80 KB of L1 cache per core, 512 KB of L2 per core, and 16 MB of shared L3 cache. The AMD processor has 64 KB of L1 per core, the same 512 KB of L2 per core, but a massive 96 MB of shared L3 cache — six times larger than Intel's. This cache advantage is likely responsible for the AMD wins in prime number finding and physics, as those workloads can fit more data in the larger L3 cache. However, the smaller 7 nm process and fewer cores mean AMD cannot match Intel's raw multi-threaded throughput.

Both processors support DDR4 memory with dual-channel configuration and identical 51.2 GB/s memory bandwidth. Both use PCIe Gen 4 with 20 CPU lanes. The Intel chip has a TDP of 125 W compared to AMD's 105 W, reflecting its higher power draw. Neither processor includes integrated graphics. The AMD chip supports ECC memory, while the Intel chip does not. The Intel multiplier is unlocked for overclocking, while the AMD multiplier is locked. The Intel processor was released on 2021-03-15 with a launch MSRP of $374, while the AMD arrived on 2023-07-06 with a launch MSRP of $229.

FAQ

Q: Which processor is faster in multi-threaded rendering?

A: The Intel Core i7-11700KF is consistently faster in multi-threaded rendering workloads. In Cinebench R23 multi-core, Intel scores 20214 versus AMD's 18603, an 8.7% advantage. The same margin appears in R15 (2037 vs 1875) and R20 (8489 vs 7813) multi-core tests.

Q: Why does the AMD Ryzen 5 5600X3D win some benchmarks despite having fewer cores?

A: The AMD processor has 96 MB of shared L3 cache compared to Intel's 16 MB. This six-fold cache advantage helps in workloads that benefit from large data sets fitting into cache, such as PassMark find prime numbers, where AMD leads 181 vs 62 (65.7% ahead), and PassMark physics, where AMD leads 2453 vs 985 (59.8% ahead).

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

A: The results are mixed. Intel wins PassMark single-thread by 5.7% (3368 vs 3187) and all Cinebench single-core tests by 8.6-8.7%. However, AMD wins Geekbench single-core by 7.1% (2086 vs 1938), showing that single-thread performance depends on the specific benchmark and workload.

Q: What is the overall performance difference between these processors?

A: The average benchmark scores are nearly identical: 25423 for Intel and 25365 for AMD, a difference of only 0.2%. Both occupy the 77th percentile among all CPUs. However, Intel wins 16 of 19 individual benchmark comparisons, with AMD winning only 3.

Q: Do both processors support the same memory and PCIe specifications?

A: Yes, both support DDR4 memory in dual-channel configuration with 51.2 GB/s bandwidth, and both use PCIe Gen 4 with 20 CPU lanes. The AMD processor additionally supports ECC memory, while the Intel processor does not.

Q: Which processor has a higher boost clock?

A: The Intel Core i7-11700KF has a boost clock of 5.00 GHz, compared to 4.40 GHz for the AMD Ryzen 5 5600X3D. Intel also has a higher base clock at 3.60 GHz versus AMD's 3.30 GHz.

Specification Differences

| Specification | Intel Core i7-11700KF | AMD Ryzen 5 5600X3D |

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

| Cores | 8 | 6 |

| Threads | 16 | 12 |

| Base Clock | 3.60 GHz | 3.30 GHz |

| Boost Clock | 5.00 GHz | 4.40 GHz |

| TDP | 125 W | 105 W |

| Socket | Intel Socket 1200 | AMD Socket AM4 |

| Architecture | Rocket Lake | Zen 3 |

| Codename | Rocket Lake | Vermeer |

| Process Node | 14 nm | 7 nm |

| Foundry | Intel | TSMC |

| Die Size | 276 mm² | 74 mm² |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L3 Cache | 16 MB (shared) | 96 MB (shared) |

| ECC Memory | No | Yes |

| Release Date | 2021-03-15 | 2023-07-06 |

| Launch MSRP | $374 | $229 |

| Multiplier Unlocked | Yes | No |

| Part Number | SRKNN | 100-000001176 |