AMD Ryzen 5 5500X3D vs Intel Core Ultra 5 225F Comparison

The Intel Core Ultra 5 225F and AMD Ryzen 5 5500X3D represent two very different philosophies for desktop computing, separated by process generation, platform, and architectural design. The benchmark data shows a decisive victory for the Intel part, but the story is more nuanced than a simple win/loss tally. The Intel Core Ultra 5 225F wins all 11 head-to-head comparisons, yet the Ryzen 5 5500X3D counters with a massive cache advantage and a completely different platform approach. This analysis digs into what those numbers mean, why they diverge so sharply, and what type of user should favor each chip.

Head-to-Head Benchmarks

The most striking result is the sheer scale of Intel’s victory in floating-point math. The Core Ultra 5 225F scores 92,554 in PassMark’s floating-point test, while the Ryzen 5 5500X3D manages only 34,511. That is a 168.2% difference—the largest gap in the entire benchmark suite. This is not a marginal win; it suggests a fundamental advantage in how the Intel chip handles complex mathematical operations, likely tied to its newer architecture and higher boost clock.

Single-thread performance tells a similar story, though with less extreme margins. The Intel part scores 4,397 in PassMark’s single-thread test, outperforming the AMD chip’s 2,941 by 49.5%. This is a critical metric for everyday responsiveness and lightly-threaded applications like web browsing or office work. The data shows the Core Ultra 5 225F is not just faster in raw multi-core workloads; it also has a substantial lead in tasks that rely on a single core’s speed.

The multi-threaded result reinforces the pattern. Intel’s 31,004 score in PassMark’s multithread test beats AMD’s 20,363 by 52.3%. Even though the Ryzen 5 5500X3D has 12 threads versus Intel’s 10, the Intel chip’s higher clock speeds and newer core design more than compensate. The data suggests that thread count alone does not determine multi-threaded performance—efficiency and per-core throughput matter just as much, if not more.

Some of the most lopsided results appear in specialized workloads. In prime number finding, Intel scores 352 versus AMD’s 170, a 107.1% advantage. Data encryption shows a 62.2% gap (22,648 vs 13,967), and extended instructions (SIMD-heavy workloads) show a 76% gap (28,027 vs 15,925). The only close contest is in physics simulation, where Intel’s 2,430 barely edges out AMD’s 2,282, a mere 6.5% difference. Even in its weakest relative showing, Intel still wins.

Architecture Differences

The architectural divide between these two chips is vast, and the benchmark results reflect it. The Intel Core Ultra 5 225F is built on a 3 nm process node from TSMC, while the AMD Ryzen 5 5500X3D uses a 7 nm node from the same foundry. This process advantage translates directly into power efficiency and clock headroom. Intel’s chip boosts to 4.90 GHz from a 3.30 GHz base, while AMD’s chip boosts to 4.00 GHz from a 3.00 GHz base. Higher clocks on a smaller node explain much of Intel’s single-thread dominance.

Core counts and threading also differ significantly. Intel’s chip has 10 cores and 10 threads, while AMD’s has 6 cores and 12 threads. Intel’s design prioritizes physical cores over simultaneous multithreading, while AMD uses its standard SMT approach. The data shows Intel’s approach wins decisively in multi-threaded workloads despite having fewer threads, suggesting that the 3 nm node’s efficiency and Intel’s newer Arrow Lake architecture deliver more performance per thread.

Cache configurations are where AMD fights back. The Ryzen 5 5500X3D features a massive 96 MB of shared L3 cache, built on the 3D V-Cache technology that gives the chip its “X3D” designation. Intel’s chip offers only 20 MB of shared L3 cache. However, Intel’s L1 and L2 caches are larger per core: 192 KB L1 and 3 MB L2 per core, versus AMD’s 64 KB L1 and 512 KB L2 per core. The benchmark data suggests that Intel’s larger per-core caches and faster clocks outweigh AMD’s L3 advantage in the tested workloads.

Memory support further separates the two. Intel uses DDR5 with dual-channel support and a theoretical bandwidth of 102.4 GB/s. AMD uses DDR4 with dual-channel support and a theoretical bandwidth of 51.2 GB/s. This is a 2x difference in memory bandwidth, which heavily influences the floating-point and encryption results. The Intel chip also supports PCIe Gen 5 with 20 CPU lanes, while AMD uses PCIe Gen 4 with 20 lanes—a difference that matters for future expansion.

Where Each One Wins

The Intel Core Ultra 5 225F wins every benchmark in the head-to-head comparison, but the magnitude of those wins varies by workload. For compute-heavy tasks like floating-point math, prime number finding, and data encryption, Intel’s lead is enormous—often exceeding 60% and reaching as high as 168.2%. This makes the Intel chip the clear choice for scientific computing, financial modeling, video encoding, and any workload that stresses the CPU’s arithmetic units.

The Ryzen 5 5500X3D’s case rests not on benchmark wins but on platform characteristics. It uses DDR4 memory, which is significantly more mature and widely available than DDR5. It also supports ECC memory, a feature the Intel chip lacks entirely. For users building a system on AMD Socket AM4, the 5500X3D offers a drop-in upgrade path that leverages existing DDR4 boards and memory—a cost-effective upgrade for those already in that ecosystem. The 96 MB L3 cache, though not translating to wins here, could benefit specific gaming workloads that are not represented in these PassMark tests.

The data also shows the Ryzen 5 5500X3D’s closest rival is the Intel Core Ultra 5 225 (non-F variant), with a deltaPct of just 0.2%. This suggests that the 5500X3D is positioned competitively against Intel’s mainstream parts, even if it loses to the higher-clocked 225F. For users who prioritize platform longevity and ECC support over raw benchmark scores, the AMD chip remains a viable option, but the data does not support any performance-based argument for choosing it over the Intel 225F.

FAQ

Q: Which CPU has higher single-thread performance?

A: The Intel Core Ultra 5 225F is significantly faster, scoring 4,397 in PassMark’s single-thread test versus the AMD Ryzen 5 5500X3D’s 2,941, a 49.5% advantage.

Q: Does the AMD Ryzen 5 5500X3D have more L3 cache?

A: Yes, the AMD chip has 96 MB of shared L3 cache, while the Intel Core Ultra 5 225F has only 20 MB. However, Intel has larger L1 and L2 caches per core (192 KB and 3 MB, respectively, versus AMD’s 64 KB and 512 KB).

Q: What is the biggest performance gap between the two chips?

A: The largest difference is in floating-point math, where the Intel chip scores 92,554 versus AMD’s 34,511, a 168.2% difference in Intel’s favor.

Q: Which CPU supports ECC memory?

A: The AMD Ryzen 5 5500X3D supports ECC memory, while the Intel Core Ultra 5 225F does not.

Q: How many threads does each CPU have?

A: The Intel Core Ultra 5 225F has 10 threads (10 cores), while the AMD Ryzen 5 5500X3D has 12 threads (6 cores).

Q: What is the memory bandwidth difference?

A: Intel’s chip supports DDR5 with a theoretical bandwidth of 102.4 GB/s, while AMD’s chip supports DDR4 with a theoretical bandwidth of 51.2 GB/s.

Specification Differences

| Specification | Intel Core Ultra 5 225F | AMD Ryzen 5 5500X3D |

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

| Cores | 10 | 6 |

| Threads | 10 | 12 |

| Base Clock | 3.30 GHz | 3.00 GHz |

| Boost Clock | 4.90 GHz | 4.00 GHz |

| TDP | 65 W | 105 W |

| Socket | Intel Socket 1851 | AMD Socket AM4 |

| Architecture | Arrow Lake | Zen 3 (Vermeer) |

| Process Node | 3 nm (TSMC) | 7 nm (TSMC) |

| Die Size | 243 mm² | 74 mm² |

| L1 Cache | 192 KB (per core) | 64 KB (per core) |

| L2 Cache | 3 MB (per core) | 512 KB (per core) |

| L3 Cache | 20 MB (shared) | 96 MB (shared) |

| Memory Support | DDR5 | DDR4 |

| Memory Bandwidth | 102.4 GB/s | 51.2 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 5, 20 Lanes | Gen 4, 20 Lanes |

| Release Date | 2025-01-06 | 2025-06-04 |

| Launch MSRP | $231 | Not available |

The Verdict

The benchmark data is unambiguous: the Intel Core Ultra 5 225F is the superior processor for raw performance. It wins all 11 head-to-head tests, with advantages ranging from 6.5% in physics to 168.2% in floating-point math. Its 3 nm process node, higher boost clock of 4.90 GHz, and DDR5 memory support give it a decisive edge in every measured workload. The 85th percentile ranking for both chips in the all-CPU database underscores that both are capable, but the Intel part delivers markedly more performance.

The AMD Ryzen 5 5500X3D’s appeal lies entirely outside the benchmark results. Its 96 MB L3 cache, ECC memory support, and compatibility with the mature AM4/DDR4 platform make it a compelling choice for users upgrading existing systems or those who need error-correcting memory. Its lower power draw of 105 W TDP versus Intel’s 65 W is a point in AMD’s favor, though Intel’s lower TDP is counterintuitively balanced by its higher performance.

For users building a new system with no legacy constraints, the Intel Core Ultra 5 225F is the clear choice—the data shows it dominates across every benchmark category. For users on an existing AM4 platform with DDR4 memory, the Ryzen 5 5500X3D offers a path to upgrade without replacing the motherboard and RAM. The launch MSRP of $231 for the Intel chip, while the AMD chip’s launch MSRP is not available, further complicates direct comparison, but the performance gap is too large to ignore for most workloads.