AMD Ryzen 5 2600X vs Intel Core i9-11900F Comparison

The benchmark data is unambiguous: the Intel Core i9-11900F wins every single head-to-head comparison against the AMD Ryzen 5 2600X, taking all 15 shared tests. This is a decisive generational and segment gap, with the Intel part leading by margins ranging from a modest 3.8% in data encryption to a staggering 156.5% in extended instructions. For buyers comparing these two desktop CPUs, the data leaves no room for a performance-based argument in favor of the AMD chip.

Head-to-Head Benchmarks

The most striking result is in passmark_extended_instructions, where the Intel Core i9-11900F scores 19,443 against the Ryzen 5 2600X’s 7,581 — a 156.5% advantage. This indicates a massive difference in SIMD and vectorized workload efficiency, likely reflecting the newer architecture's capabilities. Similarly, floating-point math shows a 100.1% delta (48,562 vs 24,270), meaning the Intel part is effectively twice as fast in this compute-heavy test.

Single-threaded performance is another clear victory for Intel. In geekbench_singlecore, the i9-11900F posts 2,220 versus 1,250 for the 2600X, a 77.6% lead. The cinebench_r15_singlecore result shows a 63.2% gap (266 vs 163), and passmark_single_thread reveals a 43.3% advantage (3,413 vs 2,381). These scores translate directly to snappier application responsiveness and better performance in lightly-threaded games.

Multi-threaded workloads also favor Intel, though the margin varies. The geekbench_multicore test shows a 53% lead (9,417 vs 6,153), while cinebench_r15_multicore shows a 40.9% gap (1,890 vs 1,341). The passmark_multithread score is 22,115 for Intel versus 13,893 for AMD, a 59.2% difference. This is despite the Ryzen 5 2600X having a higher base clock (3.60 GHz vs 2.50 GHz) — the Intel part’s 8 cores and 16 threads simply outmuscle the 6-core/12-thread AMD chip.

In integer math, the Intel CPU scores 83,718 against 47,377, a 76.7% win. The passmark_find_prime_numbers test shows a 60.5% lead (61 vs 38). Even in the closest contest, passmark_data_encryption, Intel edges out a win with 13,636 versus 13,133, a 3.8% margin. Data compression (280,847 vs 198,785, +41.3%), random string sorting (32,520 vs 22,911, +41.9%), and physics (949 vs 695, +36.5%) all follow the same pattern. The Intel Core i9-11900F is not merely faster; it is overwhelmingly faster in every measured category.

FAQ

Q: Which CPU has a higher average benchmark score?

A: The Intel Core i9-11900F has an average benchmark score of 23,254, while the AMD Ryzen 5 2600X scores 22,823. The difference is approximately 1.9% in favor of Intel.

Q: How do these CPUs compare in single-core performance?

A: The Intel part dominates. In Geekbench single-core, it scores 2,220 versus 1,250 for AMD, a 77.6% lead. In Cinebench R15 single-core, the gap is 63.2% (266 vs 163), and in Passmark single-thread, it is 43.3% (3,413 vs 2,381).

Q: Is the Ryzen 5 2600X competitive in any workload?

A: The data shows no competitive advantage for the AMD chip. It loses all 15 head-to-head tests. Its closest result is in data encryption, where it trails by only 3.8%, but it never wins.

Q: What are the core and thread counts for each processor?

A: The Intel Core i9-11900F has 8 cores and 16 threads. The AMD Ryzen 5 2600X has 6 cores and 12 threads.

Q: Which processor has a higher boost clock?

A: The Intel Core i9-11900F boosts to 5.20 GHz, while the AMD Ryzen 5 2600X boosts to 4.25 GHz. The Intel part also has a lower base clock at 2.50 GHz compared to 3.60 GHz for AMD.

Q: How does the memory bandwidth compare?

A: The Intel Core i9-11900F supports 51.2 GB/s of memory bandwidth, while the AMD Ryzen 5 2600X supports 46.9 GB/s. Both use dual-channel DDR4 memory.

Architecture Differences

The two processors come from different eras and design philosophies. The Intel Core i9-11900F is based on the Rocket Lake architecture, built on Intel’s 14 nm process node with a die size of 276 mm². It uses the Intel Socket 1200 and supports PCIe Gen 4 with 20 lanes (CPU only). The AMD Ryzen 5 2600X is based on the older Zen architecture (specifically Zen+ Pinnacle Ridge), manufactured by GlobalFoundries on a 12 nm process, with a die size of 213 mm² and 4,800 million transistors. It uses the AMD Socket AM4 and supports PCIe Gen 3 with 16 lanes (CPU only).

Cache configurations differ notably. Both have 16 MB of shared L3 cache, but the Intel part has 80 KB of L1 cache per core, while the AMD part has 96 KB per core. L2 cache is identical at 512 KB per core. The process node difference (14 nm vs 12 nm) and the transistor count (4,800 million for AMD, undisclosed for Intel) highlight the generational gap. The Intel CPU is marked as end-of-life production status, while the AMD CPU is still active.

Other differences include the memory bandwidth (51.2 GB/s vs 46.9 GB/s), the fact that the Ryzen 5 2600X has an unlocked multiplier for overclocking while the Core i9-11900F does not, and their respective launch MSRPs — $422 for Intel and $229 for AMD. Neither processor includes integrated graphics.

The Verdict

The verdict is straightforward: pick the Intel Core i9-11900F for any performance-driven build. The data shows a clean sweep — 15 wins out of 15 head-to-head tests. The Intel CPU is faster in single-threaded, multi-threaded, integer, floating-point, and encryption workloads. Its 8-core/16-thread configuration provides a 33% increase in core count over the 6-core/12-thread AMD part, and its higher boost clock (5.20 GHz vs 4.25 GHz) ensures better peak performance.

The only reason to choose the AMD Ryzen 5 2600X is if the platform or price point is a hard constraint, and this analysis does not address pricing. The AMD chip does offer an unlocked multiplier, which allows for manual overclocking, but even with that headroom, the benchmark gap is so large that catching up would be unrealistic. The Intel part’s 76.7% lead in integer math and 100.1% lead in floating-point math are insurmountable. For software that can use AVX-512 or other advanced instruction sets, the 156.5% lead in extended instructions makes the choice even more obvious.

Specification Differences

The two CPUs differ in nearly every major specification category. The Intel Core i9-11900F has 8 cores and 16 threads, while the AMD Ryzen 5 2600X has 6 cores and 12 threads. Intel’s base clock is 2.50 GHz with a boost of 5.20 GHz, whereas AMD’s base is 3.60 GHz with a boost of 4.25 GHz. TDP differs significantly: 65 W for Intel versus 95 W for AMD. The Intel part uses Socket 1200, the AMD part uses Socket AM4.

Process technology separates them: Intel is on 14 nm with a 276 mm² die, while AMD is on 12 nm with a 213 mm² die and 4,800 million transistors. Cache per core is slightly different (80 KB L1 for Intel vs 96 KB for AMD), but L3 is identical at 16 MB shared. Memory bandwidth favors Intel at 51.2 GB/s versus 46.9 GB/s. PCIe support is also different: Gen 4 with 20 lanes for Intel, Gen 3 with 16 lanes for AMD. The Intel CPU is not multiplier-unlocked, while the AMD CPU is. Release dates are March 2021 for Intel and April 2018 for AMD.

Where Each One Wins

Given the data, the Intel Core i9-11900F wins in every use case category defined by the benchmarks. For single-threaded applications like legacy games or office productivity, it holds a 43.3% to 77.6% advantage depending on the test. For heavily threaded workloads such as video rendering or 3D modeling, the 40.9% to 59.2% lead in multi-core tests makes it the clear choice. For scientific computing or any math-heavy simulation, the 100.1% floating-point advantage is decisive.

The AMD Ryzen 5 2600X does not win a single recorded benchmark category. Its closest performance is in data encryption, where it trails by only 3.8%, but it still loses. There is no workload in the FACT PACK where the AMD chip comes out ahead. The only practical scenario for choosing the AMD part would involve factors outside this benchmark data, such as motherboard compatibility or legacy AM4 platform requirements. On pure performance metrics, this is a one-sided contest. The Intel Core i9-11900F is faster in every measured dimension, making it the superior processor for any workload measured here.