AMD Ryzen 5 7500X3D vs AMD Ryzen 5 PRO 5655G Comparison

Head-to-Head Benchmarks

The benchmark data is unambiguous: the AMD Ryzen 5 7500X3D wins all 11 recorded head-to-head comparisons against the AMD Ryzen 5 PRO 5655G. The margins, however, vary widely by workload, which tells a more interesting story than a simple sweep.

The largest single delta appears in the PassMark physics test, where the 7500X3D scores 2779 against the 5655G’s 686, a 305.1% advantage. This is not a small improvement; it is a near-quadrupling of performance in a workload that typically stresses cache and core-to-core communication. Similarly, the find-prime-numbers test shows a 351% gap (221 vs 49), indicating that the 7500X3D’s large L3 cache provides an outsized benefit for memory-latency-sensitive integer loops.

Moving to more general multi-threaded workloads, the 7500X3D delivers a 30.9% lead in PassMark multithread (25047 vs 19129). Random string sorting shows a comparable 30.7% gap (32999 vs 25253), which again suggests that the 7500X3D’s cache hierarchy helps with pointer-chasing and data movement. The extended instructions test shows a 14% delta (20455 vs 17944), while floating-point math lands at 12.8% (43594 vs 38649).

Smaller but consistent wins appear in data compression (6.3%, 271649 vs 255608), single-thread performance (7.8%, 3494 vs 3241), data encryption (3.6%, 15797 vs 15253), and integer math (4.8%, 70774 vs 67561). These tighter margins indicate that for simple arithmetic and basic single-core operations, the two processors are closer, but the 7500X3D still holds a lead in every single recorded test.

The average benchmark score reinforces the overall picture: the 7500X3D averages 44573 across its recorded tests, placing it in the 89th percentile of all CPUs in the database. The 5655G averages 28032, sitting in the 80th percentile. That is a 59% higher average score for the 7500X3D, though the percentile gap (89 vs 80) is narrower because both sit in the upper range of the distribution.

Architecture Differences

The two processors come from different generations and use different underlying designs. The Ryzen 5 7500X3D is part of the 7000 series, built on the Zen 4 architecture with the Raphael codename. It uses a 5 nm process from TSMC, with 11,270 million transistors on a 71 mm² die. The Ryzen 5 PRO 5655G belongs to the 5000 series, uses Zen 3 (Cezanne), and is fabricated on a 7 nm process with 10,700 million transistors on a much larger 180 mm² die.

The cache configurations differ substantially. The 7500X3D provides 64 KB of L1 per core, 1 MB of L2 per core, and 96 MB of shared L3 cache. The 5655G also has 64 KB of L1 per core but only 512 KB of L2 per core and 16 MB of L3. That 80 MB difference in L3 is the primary architectural driver behind the large deltas in physics and prime-number tests. The 7500X3D’s extra cache lets it hold more working data on-die, reducing repeated trips to memory.

Memory support also diverges. The 7500X3D uses DDR5 with dual-channel memory and a peak bandwidth of 83.2 GB/s. The 5655G uses DDR4, also dual-channel, but with a peak bandwidth of 51.2 GB/s. The 7500X3D also supports PCIe Gen 5 with 24 CPU lanes, while the 5655G is limited to PCIe Gen 3 with 16 lanes. Both support ECC memory, and both have integrated graphics, though the 7500X3D lists generic Radeon Graphics while the 5655G integrates Radeon Vega 7.

Clock speeds are close but not identical. The 7500X3D has a base clock of 4.00 GHz and a boost clock of 4.50 GHz. The 5655G runs at 3.90 GHz base and 4.40 GHz boost. Both have a 65 W TDP, and both have locked multipliers. The 7500X3D uses AMD Socket AM5, while the 5655G uses AM4, so they are not socket-compatible.

Where Each One Wins

The data shows that the 7500X3D wins every benchmark, but the magnitude of the win varies by workload type. For cache-heavy, latency-sensitive tasks, the 7500X3D is decisively ahead. The physics test (305.1% lead) and prime-number finding (351% lead) are the clearest examples. These workloads repeatedly access small data sets that fit within the 96 MB L3, and the 5655G’s 16 MB L3 simply cannot hold as much working set.

For multi-threaded throughput, the 7500X3D also holds a strong edge. The multithread test shows a 30.9% lead, and random string sorting shows 30.7%. These are substantial margins that would be visible in real-world rendering, compilation, or data-processing tasks that scale across all six cores and twelve threads.

For single-thread and lightly threaded work, the gap narrows. Single-thread performance is 7.8% higher on the 7500X3D, and integer math is 4.8% higher. Data compression shows a 6.3% delta, and encryption is only 3.6% ahead. These results indicate that for everyday desktop responsiveness, web browsing, or basic office work, the two processors are closer, though the 7500X3D still leads.

The 5655G does not win any recorded test. Its closest margins are in integer math (4.8% behind) and data encryption (3.6% behind), which are workloads where the larger L3 cache of the 7500X3D provides less benefit. The 5655G does have one clear advantage in the form of its integrated Radeon Vega 7 graphics, which is a more explicitly named GPU than the generic Radeon Graphics on the 7500X3D, but no graphics benchmarks are recorded in this data set.

FAQ

Q: Which processor has the higher single-thread score?

A: The AMD Ryzen 5 7500X3D scores 3494 in PassMark single-thread, which is 7.8% higher than the 5655G’s 3241.

Q: How big is the multi-threaded performance gap?

A: The 7500X3D scores 25047 in PassMark multithread, while the 5655G scores 19129. That is a 30.9% lead for the 7500X3D.

Q: Does the 5655G win any benchmark in the head-to-head comparison?

A: No. The 7500X3D wins all 11 recorded head-to-head tests, with no wins recorded for the 5655G.

Q: What is the biggest single benchmark delta between the two?

A: The PassMark find-prime-numbers test shows the largest delta at 351%, with the 7500X3D scoring 221 versus 49 for the 5655G.

Q: Are the two processors socket-compatible?

A: No. The 7500X3D uses AMD Socket AM5, while the 5655G uses AMD Socket AM4.

Q: Do both processors support ECC memory?

A: Yes, both list ECC memory support as enabled.

Specification Differences

| Field | AMD Ryzen 5 7500X3D | AMD Ryzen 5 PRO 5655G |

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

| Series | 7000 series | 5000 series |

| Architecture | Zen 4 (Raphael) | Zen 3 (Cezanne) |

| Process Node | 5 nm | 7 nm |

| Transistors | 11,270 million | 10,700 million |

| Die Size | 71 mm² | 180 mm² |

| Base Clock | 4.00 GHz | 3.90 GHz |

| Boost Clock | 4.50 GHz | 4.40 GHz |

| L2 Cache | 1 MB (per core) | 512 KB (per core) |

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

| Memory Support | DDR5 | DDR4 |

| Memory Bandwidth | 83.2 GB/s | 51.2 GB/s |

| PCIe | Gen 5, 24 Lanes | Gen 3, 16 Lanes |

| Socket | AMD Socket AM5 | AMD Socket AM4 |

| Integrated Graphics | Radeon Graphics | Radeon Vega 7 |

| Release Date | 2025-11-11 | 2024-05-06 |

| Launch MSRP | $269 | Not listed |

| Part Number | 100-000001904 | 100-000001513 |

The two chips share six cores, twelve threads, a 65 W TDP, dual-channel memory buses, and locked multipliers. They also both have 64 KB of L1 cache per core and ECC support. The differences are concentrated in architecture generation, process node, cache capacity, memory type, and platform support.

The Verdict

The recorded data points to a clear hierarchy. The AMD Ryzen 5 7500X3D outperforms the AMD Ryzen 5 PRO 5655G in every measured benchmark, with the largest gaps appearing in cache-sensitive workloads. The 351% lead in find-prime-numbers and the 305.1% lead in physics are not incremental; they reflect a fundamentally larger L3 cache (96 MB vs 16 MB) that allows the 7500X3D to avoid repeated memory stalls.

The 7500X3D also offers a more modern platform: DDR5 memory at 83.2 GB/s versus DDR4 at 51.2 GB/s, PCIe Gen 5 versus Gen 3, and a smaller 5 nm process with a smaller die. Its 89th percentile ranking against all CPUs in the database versus the 5655G’s 80th percentile confirms that it sits higher in the overall performance distribution.

The 5655G is not without merit. Its margins of defeat are smallest in integer math (4.8%) and encryption (3.6%), where the cache advantage matters less. Its integrated Radeon Vega 7 graphics are explicitly named, and its AM4 socket offers a different platform path. For users already on AM4 with DDR4 memory, the 5655G represents a drop-in option that avoids a platform change.

However, the data does not support choosing the 5655G on performance grounds. The 7500X3D wins every test, often by double-digit percentages, and its average benchmark score of 44573 is 59% higher than the 5655G’s 28032. The only recorded advantage for the 5655G is its earlier release date (May 2024 versus November 2025) and a lower process node, which does not translate into any benchmark win. For any workload represented in this database, the 7500X3D is the stronger processor.