AMD Ryzen 9 9900X3D vs Intel Core 5 221E Comparison

The Verdict

The benchmark database presents a decisive performance hierarchy between these two desktop processors. The AMD Ryzen 9 9900X3D wins all 17 recorded head-to-head comparisons against the Intel Core 5 221E, with zero wins for the Intel part. The AMD processor delivers dominant multi-threaded and single-threaded results across Cinebench R15, R20, R23, and the Passmark suite. Its average benchmark score of 54762 places it 36.4% above the Intel Core 5 221E's average of 40144. The Ryzen 9 9900X3D also holds a higher percentile rank at 91 versus the Intel part's 87 among all CPUs in the database.

The data shows the AMD processor is the clear choice for workloads that stress both raw core counts and cache-sensitive tasks. The Intel Core 5 221E, however, serves a different role: it is a 65 W processor with 14 cores and 20 threads, positioned for efficiency-focused builds. Its nearest rivals in the database include the AMD Ryzen 7 7700 (0.2% ahead) and AMD Ryzen 9 270 (0.3% behind), which indicates it sits in a mainstream performance tier rather than an enthusiast one. The Ryzen 9 9900X3D, by contrast, competes with Intel Core Ultra 5 245KF (0.6% behind) and Intel Core Ultra 5 245K (1.3% ahead), placing it in a higher performance bracket.

For users who prioritize maximum compute throughput, the Ryzen 9 9900X3D is the only rational choice based on the recorded measurements. For users who need a lower-power desktop part with sufficient multi-threading for moderate workloads, the Intel Core 5 221E has its place, but it cannot match the AMD part in any benchmark category tracked here.

FAQ

Q: How many cores and threads does each processor have?

A: The AMD Ryzen 9 9900X3D has 12 cores and 24 threads. The Intel Core 5 221E has 14 cores and 20 threads. Despite having fewer cores, the AMD processor wins every multi-threaded benchmark due to its higher clock speeds and architecture efficiency.

Q: What is the difference in average benchmark scores?

A: The AMD Ryzen 9 9900X3D records an average benchmark score of 54762, while the Intel Core 5 221E scores 40144. This represents a 36.4% advantage for the AMD part. The AMD processor also ranks at the 91st percentile versus the Intel part's 87th percentile among all CPUs.

Q: Which processor has the higher boost clock?

A: The AMD Ryzen 9 9900X3D boosts to 5.50 GHz, compared to the Intel Core 5 221E's boost of 5.20 GHz. The AMD part also has a much higher base clock at 4.40 GHz versus 2.70 GHz for the Intel processor.

Q: What are the thermal design power ratings?

A: The AMD Ryzen 9 9900X3D has a TDP of 120 W, while the Intel Core 5 221E is rated at 65 W. The Intel part consumes less power by specification, but the AMD part delivers substantially higher performance in every measured test.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 9 9900X3D and the Intel Core 5 221E support ECC memory. Both also feature dual-channel memory buses and 89.6 GB/s of memory bandwidth.

Q: Which processor has the larger L3 cache?

A: The AMD Ryzen 9 9900X3D has 128 MB of L3 cache. The Intel Core 5 221E has 24 MB of shared L3 cache. The AMD processor's larger cache likely contributes to its significant leads in cache-sensitive workloads like data compression.

Architecture Differences

The AMD Ryzen 9 9900X3D is built on the Zen 5 architecture with the Granite Ridge codename, manufactured on TSMC's 4 nm process node. The Intel Core 5 221E uses the Bartlett Lake codename and is fabricated on Intel's 10 nm process. The AMD processor integrates 16,630 million transistors across a dual-die design with each die measuring 2x 70.6 mm². The Intel processor uses a single 257 mm² die.

Cache hierarchies differ substantially. Both processors provide 80 KB of L1 cache per core, but the AMD part has 1 MB of L2 cache per core, while the Intel part has 2 MB per core. The L3 cache presents the largest divergence: 128 MB for the AMD processor versus 24 MB shared for the Intel part. This 104 MB difference in L3 capacity is a primary factor in the AMD processor's large wins in data compression (111.3% ahead) and extended instructions (204.3% ahead).

The AMD Ryzen 9 9900X3D uses AMD Socket AM5, while the Intel Core 5 221E uses Intel Socket 1700. Both support PCIe Gen 5, but the AMD processor provides 24 lanes from the CPU, whereas the Intel part offers 16 lanes. The AMD processor includes Radeon Graphics as integrated graphics, while the Intel part ships with UHD Graphics 730. Memory support also differs: the AMD processor supports DDR5 only, while the Intel processor supports both DDR4 and DDR5.

The AMD part has an unlocked multiplier, enabling overclocking. The Intel Core 5 221E has a locked multiplier. The production status for both is Active, with release dates close together: the AMD processor launched on 2025-01-05, and the Intel part followed on 2025-01-12.

Specification Differences

| Specification | AMD Ryzen 9 9900X3D | Intel Core 5 221E |

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

| Cores | 12 | 14 |

| Threads | 24 | 20 |

| Base clock | 4.40 GHz | 2.70 GHz |

| Boost clock | 5.50 GHz | 5.20 GHz |

| TDP | 120 W | 65 W |

| Process node | 4 nm | 10 nm |

| Foundry | TSMC | Intel |

| L2 cache | 1 MB per core | 2 MB per core |

| L3 cache | 128 MB | 24 MB shared |

| Socket | AMD Socket AM5 | Intel Socket 1700 |

| PCIe lanes | 24 | 16 |

| Integrated graphics | Radeon Graphics | UHD Graphics 730 |

| Multiplier | Unlocked | Locked |

| Launch MSRP | $599 | $232 |

The AMD processor has fewer cores (12 versus 14) but more threads (24 versus 20) due to simultaneous multithreading. The Intel part's higher core count does not translate into performance advantages in the database results. The AMD processor's base clock is 1.70 GHz higher, and its boost clock is 0.30 GHz higher. The TDP difference is substantial: 120 W for AMD versus 65 W for Intel.

The memory bandwidth is identical at 89.6 GB/s, and both use dual-channel memory buses. The AMD processor's 4 nm node versus Intel's 10 nm node explains part of the efficiency gap, though the Intel part draws less power by specification. The Intel processor supports both DDR4 and DDR5 memory, a flexibility advantage, while the AMD part is DDR5-only.

Head-to-Head Benchmarks

The AMD Ryzen 9 9900X3D wins every benchmark in the head-to-head comparison, but the margins vary widely. The smallest gap appears in Passmark single-threaded tests, where the AMD processor scores 4646 against 4147 for the Intel part, a 12% advantage. This indicates the AMD part's single-core performance lead is modest relative to its multi-threaded dominance.

In Cinebench R23 multicore, the AMD processor scores 47737 versus 25933 for the Intel processor, an 84.1% lead. The Cinebench R23 single-core result shows 6739 versus 3661, also an 84.1% gap. This pattern repeats across Cinebench R15 and R20: multicore scores of 4811 versus 2613 (R15), 20049 versus 10891 (R20), and single-core scores of 679 versus 368 (R15), 2830 versus 1537 (R20). Every Cinebench delta is exactly 84.1%, suggesting consistent architectural scaling.

The Passmark suite reveals the most extreme differences. The AMD processor leads by 214.5% in find prime numbers (544 versus 173), 204.3% in extended instructions (55426 versus 18216), and 139.5% in physics (5340 versus 2230). Data compression shows a 111.3% advantage (685074 versus 324285), while random string sorting is 90.7% ahead (71864 versus 37686). Integer math is 52.6% ahead (179727 versus 117813), and floating-point math is 51.4% ahead (119622 versus 79028). Data encryption shows a 73.3% lead (33282 versus 19205).

The multithreaded Passmark score for the AMD processor is 56154 versus 30510 for the Intel part, an 84.1% difference that mirrors the Cinebench results. These consistent 84.1% deltas across multiple benchmark families indicate that the AMD processor's advantage scales uniformly with thread count and clock speed, rather than being workload-specific.

The AMD processor's nearest rivals in the database are Intel Core Ultra 5 245KF (0.6% behind), Intel Core Ultra 5 245K (1.3% ahead), Intel Xeon 6505P (2.0% ahead), and Intel Core i7-14700F (2.1% ahead). This places the Ryzen 9 9900X3D in a competitive tier where its 84-214% leads over the Core 5 221E are far larger than the margins among its closest competitors. The Intel Core 5 221E's nearest rivals are AMD Ryzen 7 7700 (0.2% ahead), AMD Ryzen AI 9 365 (0.2% ahead), AMD Ryzen 9 270 (0.3% behind), and Intel Core i9-13905H (0.4% behind). All of these rival deltas are under 1%, confirming that the Intel part is tightly grouped with mainstream processors, while the AMD part operates in a higher performance class.

Data from the database shows no scenario where the Intel Core 5 221E outperforms the AMD Ryzen 9 9900X3D. The AMD processor's 128 MB L3 cache and 5.50 GHz boost clock provide decisive advantages across synthetic render tests, encryption, compression, and math workloads. The Intel processor's higher core count (14 versus 12) and larger per-core L2 cache (2 MB versus 1 MB) do not compensate for its lower clocks, smaller L3, and older process node in any recorded measurement.