AMD Ryzen 7 3700X vs Intel Core Ultra 7 165H Comparison

Head-to-Head Benchmarks

The benchmark data presents a clear picture of a generational leap in raw compute, with the Intel Core Ultra 7 165H claiming victory in 10 of 13 head-to-head tests, while the AMD Ryzen 7 3700X secures only 3 wins. The most striking gap emerges in floating-point mathematics, where the Intel chip scores 66,273 against the AMD's 39,005, a massive 41.1% advantage. This suggests the Meteor Lake architecture handles complex scientific and financial workloads with substantially more efficiency.

Single-thread performance tells a similarly decisive story. The Intel Core Ultra 7 165H posts 3,509 in the PassMark single-thread test, beating the Ryzen 7 3700X's 2,656 by 24.3%. The Cinebench R15 single-core result reinforces this trend, with Intel leading 257 to 204, a 20.6% margin. These numbers indicate that the newer Intel design extracts significantly more work from each individual core, which translates directly to snappier everyday responsiveness and faster legacy software performance.

Multithreaded workloads show the Intel part maintaining its dominance, though with a narrower margin. The Cinebench R15 multicore test sees Intel score 2,641 versus AMD's 2,092, a 20.8% difference. PassMark's multithread benchmark shows Intel ahead at 25,933 compared to 22,458, a 13.4% advantage. The physics simulation test follows suit, with Intel scoring 1,806 against AMD's 1,181, a substantial 34.6% lead that suggests better handling of real-time physics calculations.

However, the AMD Ryzen 7 3700X is not without its victories. The data encryption test shows AMD leading 18,900 to 17,169, a 10.1% advantage that hints at strong cryptographic throughput. Extended instruction workloads favor AMD as well, with scores of 19,241 versus Intel's 17,299, an 11.2% edge that could benefit certain AVX-optimized applications. The data compression test is nearly a tie, with AMD edging out Intel 296,379 to 291,161, a slim 1.8% margin that falls within the range of benchmark variance.

The integer math results are noteworthy for their scale: Intel leads 89,415 to 66,399, a 25.7% gap. The random string sorting test shows a smaller Intel advantage of 33,473 versus 32,131, a 4% difference. Prime number finding also favors Intel, 118 to 99, a 16.1% lead. Across the full benchmark suite, the average scores are remarkably close — AMD at 34,260 and Intel at 34,083, a 0.5% difference — but this masks the distribution of wins, which heavily favors Intel in most compute-heavy tests.

Architecture Differences

The architectural chasm between these two processors explains much of the benchmark divergence. The AMD Ryzen 7 3700X, built on the Zen 2 architecture with the Matisse codename, is a desktop part from the 3000 series. It uses 8 cores and 16 threads, manufactured on a 7 nm process at TSMC with 3,800 million transistors packed into a 74 mm² die. The Intel Core Ultra 7 165H, by contrast, is a mobile processor from the Core Ultra Series 1, using the Meteor Lake architecture with 16 cores and 22 threads, also on a 7 nm node but fabricated by Intel itself. This core count difference — 16 versus 8 — directly explains why Intel wins most multithreaded tests despite the AMD part's higher average benchmark score.

Cache configurations differ dramatically between the two. The AMD chip offers 64 KB of L1 cache per core, 512 KB of L2 per core, and a large 32 MB L3 cache. The Intel part provides 112 KB of L1 per core, a much larger 2 MB of L2 per core, but only 24 MB of shared L3. This suggests Intel's design relies more heavily on per-core cache for fast data access, while AMD's larger L3 pool benefits shared data across all cores. The 32 MB L3 on AMD likely contributes to its data compression and encryption wins, as those workloads often benefit from large shared caches.

Memory support marks a major generational divide. The AMD Ryzen 7 3700X uses DDR4 with dual-channel memory and a peak bandwidth of 51.2 GB/s. The Intel Core Ultra 7 165H supports DDR5, also dual-channel, but with a substantially higher memory bandwidth of 89.6 GB/s. This 75% bandwidth advantage helps explain Intel's dominance in memory-intensive floating-point and integer workloads. The Intel part also features integrated graphics with Arc Xe-LPG 128EU, while the AMD desktop chip has no integrated graphics at all, making the Intel a more self-contained mobile solution.

PCIe capabilities also differ: the AMD processor offers Gen 4 with 24 lanes, while the Intel chip provides Gen 5 with only 8 lanes. The newer Gen 5 standard offers higher per-lane bandwidth, but the reduced lane count suggests the mobile part prioritizes power efficiency over expansion capability. The Intel chip operates at a base clock of 3.80 GHz boosting to 5.00 GHz, compared to AMD's 3.60 GHz base and 4.40 GHz boost, giving Intel a clock speed advantage that compounds with its architectural efficiency.

Where Each One Wins

The AMD Ryzen 7 3700X carves out a narrow but meaningful niche in security and data-handling tasks. Its 10.1% lead in data encryption and 11.2% edge in extended instructions point to workloads that benefit from the Zen 2 design's particular instruction handling. The data compression win, though marginal at 1.8%, suggests that file archiving and database operations run slightly better on the AMD part. For users who spend significant time on encryption-heavy tasks, such as VPN traffic management or secure file transfers, the Ryzen 7 3700X offers measurable advantages.

The Intel Core Ultra 7 165H dominates nearly everywhere else. Its 41.1% lead in floating-point math makes it the clear choice for scientific simulations, 3D rendering, and any workload relying heavily on decimal calculations. The 25.7% integer math advantage benefits general-purpose programming, cryptography (ironically), and data processing tasks. The physics test's 34.6% gap suggests better gaming physics performance, while the 24.3% single-thread lead means faster response in everyday applications that don't fully utilize multiple cores.

For mobile users, the Intel chip's advantages are amplified by its market segment — it's designed for laptops where power efficiency matters. With a TDP of 28 watts compared to AMD's 65 watts, the Intel part delivers superior performance at less than half the thermal envelope. This makes the Core Ultra 7 165H particularly compelling for thin-and-light laptops that need sustained performance without excessive heat or battery drain. The integrated Arc graphics also provide a complete package, eliminating the need for a separate GPU for basic display output.

The prime number finding test shows Intel ahead by 16.1%, which often correlates with cryptographic key generation and certain mathematical algorithms. Random string sorting, with Intel's 4% lead, suggests modest advantages in text processing and data organization tasks. The multithread test's 13.4% Intel advantage, while significant, is smaller than the core count difference might suggest, indicating that AMD's architecture extracts more efficiency per thread in some scenarios.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 7 3700X has an average benchmark score of 34,260, while the Intel Core Ultra 7 165H scores 34,083, giving AMD a 0.5% edge in this aggregate metric.

Q: How do the core counts compare between the two?

A: The Intel Core Ultra 7 165H has 16 cores and 22 threads, while the AMD Ryzen 7 3700X has 8 cores and 16 threads. This gives Intel a 2x core advantage.

Q: What is the biggest single benchmark gap between them?

A: The largest delta is in PassMark floating-point math, where Intel scores 66,273 versus AMD's 39,005, a 41.1% difference in Intel's favor.

Q: Are there any workloads where AMD wins?

A: Yes, AMD wins three tests: data encryption (18,900 vs 17,169, 10.1% lead), extended instructions (19,241 vs 17,299, 11.2% lead), and data compression (296,379 vs 291,161, 1.8% lead).

Q: What are the TDP differences between these processors?

A: The AMD Ryzen 7 3700X has a TDP of 65 watts, while the Intel Core Ultra 7 165H has a TDP of 28 watts, making Intel substantially more power-efficient.

Q: Which processor supports DDR5 memory?

A: The Intel Core Ultra 7 165H supports DDR5, while the AMD Ryzen 7 3700X uses DDR4. Intel also achieves higher memory bandwidth at 89.6 GB/s versus AMD's 51.2 GB/s.

The Verdict

The data positions these as fundamentally different tools. The Intel Core Ultra 7 165H, with 16 cores and 22 threads, is the clear performance leader in most compute tasks, winning 10 out of 13 head-to-head benchmarks. Its 41.1% floating-point lead, 25.7% integer math advantage, and 24.3% single-thread superiority make it the better choice for users who need maximum throughput across diverse workloads. The lower TDP of 28 watts, compared to AMD's 65 watts, makes Intel the obvious pick for laptop builds where thermal and power constraints matter.

The AMD Ryzen 7 3700X remains relevant for specific use cases. Its 10.1% encryption win and 11.2% extended instructions advantage suggest that applications heavily reliant on these operations will perform better on the older chip. For desktop users who prioritize data compression and security-related tasks, the AMD part offers measurable benefits. The 32 MB L3 cache and 24 PCIe Gen 4 lanes provide expansion flexibility that the Intel mobile chip cannot match. With a launch MSRP of $329 versus Intel's $460, the AMD processor also represents a lower upfront investment, though this is the only price reference available in the data.

The percentile rankings tell a nuanced story: both processors sit at the 84th percentile against all CPUs, indicating they are roughly equivalent in overall market positioning. The near-identical average scores (34,260 vs 34,083) confirm this parity. The choice ultimately depends on workload profile — Intel for general compute dominance and mobile efficiency, AMD for encryption-focused desktop tasks and data compression. The 0.5% average score difference in AMD's favor, despite losing 10 individual tests, underscores how benchmark aggregation can obscure meaningful performance variations.

Specification Differences

| Specification | AMD Ryzen 7 3700X | Intel Core Ultra 7 165H |

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

| Cores | 8 | 16 |

| Threads | 16 | 22 |

| Base Clock | 3.60 GHz | 3.80 GHz |

| Boost Clock | 4.40 GHz | 5.00 GHz |

| TDP | 65 W | 28 W |

| Socket | AMD Socket AM4 | Intel BGA 2049 |

| Architecture | Zen 2 | Meteor Lake |

| Process Node | 7 nm | 7 nm |

| Foundry | TSMC | Intel |

| L1 Cache | 64 KB (per core) | 112 KB (per core) |

| L2 Cache | 512 KB (per core) | 2 MB (per core) |

| L3 Cache | 32 MB | 24 MB (shared) |

| Memory Support | DDR4 | DDR5 |

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

| PCIe | Gen 4, 24 Lanes | Gen 5, 8 Lanes |

| Integrated Graphics | None | Arc Xe-LPG 128EU |

| Market Segment | Desktop | Mobile |

| Release Date | 2019-07-06 | 2023-12-13 |

| Launch MSRP | $329 | $460 |

| Multiplier Unlocked | Yes | No |

| Transistors | 3,800 million | Not specified |

| Die Size | 74 mm² | Not specified |