AMD Ryzen 3 PRO 5355G vs AMD Ryzen 5 7545U Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive sweep: the AMD Ryzen 5 7545U wins all 11 head-to-head benchmark comparisons against the AMD Ryzen 3 PRO 5355G. There are no wins for the desktop part in any measured workload, which makes the performance hierarchy unusually clear.

The largest single margin comes in the prime number test, where the Ryzen 5 7545U scores 68 versus 36 for the Ryzen 3 PRO 5355G, a 47.1% advantage. This workload tends to reward memory latency, cache capacity, and instruction efficiency, all of which favor the newer mobile chip. Random string sorting shows a 38% gap (30358 versus 18819), indicating that the Ryzen 5 7545U handles pointer-chasing and data movement tasks substantially better.

In floating-point math, the Ryzen 5 7545U posts 36754 against 25245, a 31.3% lead. The physics benchmark follows a similar pattern: 1057 versus 701, a 33.7% difference. Extended instructions show a 33.2% gap (17865 versus 11935), suggesting the Zen 4 core's newer ISA extensions provide a measurable throughput advantage in specialized workloads.

The multithread score tells a similar story: 20298 versus 14033, a 30.9% lead for the Ryzen 5 7545U. This is particularly notable because the Ryzen 5 7545U is a 28W mobile part, while the Ryzen 3 PRO 5355G is a 65W desktop chip. The mobile processor's combination of two extra cores, twelve threads, and a higher boost clock overcomes the desktop part's higher base clock and larger thermal envelope.

Data compression shows a 29.5% lead (238345 versus 168041), while encryption trails at 27.6% (14202 versus 10288). Integer math is the narrowest margin among the multithreaded tests at 23.7% (60206 versus 45910), but it is still a decisive win.

The single-thread comparison is closer but still favors the Ryzen 5 7545U: 3673 versus 3096, a 15.7% advantage. This is the smallest gap in the entire set, which makes sense given that the Ryzen 3 PRO 5355G boosts to 4.20 GHz while the Ryzen 5 7545U reaches 4.90 GHz. The higher boost clock, combined with the architectural improvements of Zen 4, produces a meaningful per-core advantage.

Both processors sit at the 79th percentile among all CPUs in the database, which places them in the same overall performance tier despite the Ryzen 5 7545U's consistent wins in direct comparison. The average benchmark score for the Ryzen 3 PRO 5355G is 27382, while the Ryzen 5 7545U averages 26849, meaning the desktop chip actually holds a slight edge in aggregate across the full benchmark suite, even though it loses every head-to-head test. This apparent contradiction comes from different benchmark sets being recorded for each chip, not from conflicting results.

Architecture Differences

The two processors represent different generations and design philosophies. The Ryzen 3 PRO 5355G uses the Zen 3 architecture on TSMC's 7 nm process, while the Ryzen 5 7545U uses Zen 4 on TSMC's 4 nm node. The process shrink from 7 nm to 4 nm is the most visible manufacturing difference, though the architecture change brings more substantial improvements.

The Ryzen 5 7545U packs 20,900 million transistors into a 137 mm² die, while the Ryzen 3 PRO 5355G contains 10,700 million transistors on a 180 mm² die. The mobile processor crams nearly twice the transistor count into a smaller physical area, a direct result of the denser 4 nm process.

Core counts differ significantly: the Ryzen 3 PRO 5355G offers 4 cores and 8 threads, while the Ryzen 5 7545U provides 6 cores and 12 threads. The cache hierarchy also diverges. Both have 64 KB of L1 per core, but the Ryzen 3 PRO 5355G has 512 KB of L2 per core, while the Ryzen 5 7545U doubles that to 1 MB per core. More importantly, the L3 cache jumps from 8 MB on the desktop part to 16 MB shared on the mobile part, a factor of two that directly impacts the prime number and sorting benchmarks.

Memory support marks a generational split. The Ryzen 3 PRO 5355G uses DDR4 with dual-channel support and 51.2 GB/s bandwidth, while the Ryzen 5 7545U uses DDR5 with dual-channel support and 89.6 GB/s bandwidth. The 75% bandwidth increase gives the mobile chip a substantial advantage in memory-sensitive workloads.

PCIe capabilities also differ. The Ryzen 3 PRO 5355G provides Gen 3 with 16 lanes from the CPU, while the Ryzen 5 7545U offers Gen 4 with 14 lanes. The newer standard doubles the per-lane bandwidth, though the desktop part has two additional lanes.

Integrated graphics favor the mobile chip as well. The Ryzen 3 PRO 5355G includes Radeon Vega 6, while the Ryzen 5 7545U features the newer Radeon 740M. The 740M benefits from the Zen 4 era's improved iGPU architecture, though the database does not record direct graphics benchmarks for either part.

Both processors support ECC memory, share the same manufacturer, and come with locked multipliers. The sockets are entirely different: the Ryzen 3 PRO 5355G uses AMD Socket AM4, while the Ryzen 5 7545U uses AMD Socket FP7. The market segments also differ, with the Ryzen 3 PRO 5355G classified as desktop and the Ryzen 5 7545U as mobile.

Power envelopes separate the two significantly. The Ryzen 3 PRO 5355G carries a 65W TDP, while the Ryzen 5 7545U operates at 28W. The mobile part delivers higher performance across the board while consuming less than half the thermal budget, proof of the efficiency gains from the 4 nm process and Zen 4 architecture.

Release timing differs as well. The Ryzen 5 7545U launched on November 1, 2023, while the Ryzen 3 PRO 5355G followed on September 4, 2024. Both parts remain active in production.

FAQ

Q: Which processor wins in single-thread performance?

A: The AMD Ryzen 5 7545U scores 3673 in the single-thread test against 3096 for the AMD Ryzen 3 PRO 5355G, a 15.7% advantage. The mobile chip's 4.90 GHz boost clock exceeds the desktop part's 4.20 GHz boost, which explains much of the gap.

Q: Is the Ryzen 3 PRO 5355G better for multi-threaded workloads?

A: No. The Ryzen 5 7545U wins the multithread benchmark with 20298 versus 14033, a 30.9% lead. The mobile processor's 6 cores and 12 threads outpace the desktop part's 4 cores and 8 threads despite the desktop chip's higher base clock.

Q: How does the memory support differ between these two CPUs?

A: The Ryzen 3 PRO 5355G supports DDR4 with dual-channel memory and 51.2 GB/s bandwidth. The Ryzen 5 7545U supports DDR5 with dual-channel memory and 89.6 GB/s bandwidth, a 75% increase in theoretical memory throughput.

Q: Are both processors in the same performance percentile?

A: Yes, both sit at the 79th percentile among all CPUs in the database. However, the average benchmark scores differ slightly: the Ryzen 3 PRO 5355G averages 27382, while the Ryzen 5 7545U averages 26849.

Q: Which chip has more cache?

A: The Ryzen 5 7545U has 16 MB of shared L3 cache, double the 8 MB on the Ryzen 3 PRO 5355G. The L2 cache also differs: 1 MB per core on the mobile part versus 512 KB per core on the desktop part.

Q: What are the TDP requirements for each processor?

A: The Ryzen 3 PRO 5355G has a 65W TDP, while the Ryzen 5 7545U has a 28W TDP. The mobile processor delivers higher benchmark scores across all head-to-head tests while consuming less than half the thermal design power.

The Verdict

The benchmark data points to a clear winner. The AMD Ryzen 5 7545U outperforms the AMD Ryzen 3 PRO 5355G in every recorded head-to-head comparison, with margins ranging from 15.7% in single-thread to 47.1% in prime number finding. The mobile chip's advantages in core count, threads, cache size, memory bandwidth, and boost clock combine to produce a comprehensive victory.

The Ryzen 5 7545U is the better choice for users who need maximum performance from their processor, regardless of workload type. Its wins span integer math, floating-point math, encryption, compression, sorting, physics, and single-threaded tasks. No workload category favors the Ryzen 3 PRO 5355G in the recorded data.

The Ryzen 3 PRO 5355G retains relevance for specific use cases. Its AM4 socket compatibility matters for users with existing AM4 motherboards who want a low-power, 65W desktop chip with ECC support and reasonable performance. The 7 nm process and Zen 3 architecture are older, but the part remains active in production and offers a complete desktop platform solution.

The efficiency story is striking. The Ryzen 5 7545U delivers 30.9% higher multithread performance and 15.7% higher single-thread performance while consuming 28W versus the Ryzen 3 PRO 5355G's 65W. This makes the mobile chip dramatically more power-efficient, a factor that matters for compact builds and battery-powered systems. The Ryzen 3 PRO 5355G offers no performance advantage to justify its higher thermal envelope.

For new system builds where either chip could fit, the Ryzen 5 7545U is the stronger performer. The only reasons to select the Ryzen 3 PRO 5355G would be platform compatibility with AM4 or the need for a desktop socket. Both processors share the same 79th percentile ranking, but the head-to-head data shows the Ryzen 5 7545U as the superior part.

Specification Differences

| Specification | AMD Ryzen 3 PRO 5355G | AMD Ryzen 5 7545U |

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

| Cores | 4 | 6 |

| Threads | 8 | 12 |

| Base Clock | 4.00 GHz | 3.20 GHz |

| Boost Clock | 4.20 GHz | 4.90 GHz |

| TDP | 65W | 28W |

| Socket | AMD Socket AM4 | AMD Socket FP7 |

| Architecture | Zen 3 | Zen 4 |

| Codename | Cezanne | Phoenix2 |

| Process Node | 7 nm | 4 nm |

| Transistors | 10,700 million | 20,900 million |

| Die Size | 180 mm² | 137 mm² |

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

| L3 Cache | 8 MB | 16 MB (shared) |

| Memory Support | DDR4 | DDR5 |

| Memory Bandwidth | 51.2 GB/s | 89.6 GB/s |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 4, 14 Lanes (CPU only) |

| Integrated Graphics | Radeon Vega 6 | Radeon 740M |

| Market Segment | Desktop | Mobile |

| Release Date | September 4, 2024 | November 1, 2023 |

The table highlights the generational leap between the two parts. The Ryzen 5 7545U adds two cores, four threads, doubles the L3 cache, increases L2 per core, moves to DDR5, doubles memory bandwidth, and adopts PCIe Gen 4, all within a smaller die and lower TDP. The Ryzen 3 PRO 5355G counters with a higher base clock and more PCIe lanes, but these advantages do not translate into benchmark wins in the recorded data.