AMD Ryzen 9 9950X vs Intel Core Ultra 9 386H Comparison

FAQ

Q: Which processor has better multi-threaded performance in Cinebench R23?

A: The AMD Ryzen 9 9950X scores 40924 in Cinebench R23 multicore, which is 99.2% higher than the Intel Core Ultra 9 386H's 20547 score. This places the AMD part nearly twice as fast in heavily threaded rendering workloads.

Q: How do the two processors compare in single-threaded performance?

A: The AMD Ryzen 9 9950X leads in all recorded single-threaded tests. In Cinebench R23 singlecore, it scores 2202 versus 2071.5 for the Intel Core Ultra 9 386H, a 6.3% advantage. The gap widens in PassMark single_thread, where AMD scores 4737 versus 4218, a 12.3% lead.

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 9 9950X has an average benchmark score of 74640, while the Intel Core Ultra 9 386H averages 43210. The AMD processor also sits in the 94th percentile of all CPUs, compared to the 88th percentile for Intel.

Q: Are both processors 16-core designs?

A: Yes, both have 16 cores, but they differ in thread counts. The AMD Ryzen 9 9950X supports 32 threads, while the Intel Core Ultra 9 386H supports 16 threads. The AMD part has simultaneous multithreading enabled; the Intel part does not.

Q: What are the closest rivals for each processor according to the database?

A: The AMD Ryzen 9 9950X's nearest rival is the AMD Ryzen 7 PRO 9745, which scores 74761 on average, a 0.2% difference. The Intel Core Ultra 9 386H's nearest rival is the AMD Ryzen AI Max PRO 385, which scores 43326 on average, a 0.3% difference.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 9 9950X supports ECC memory. The Intel Core Ultra 9 386H does not list ECC memory support in the recorded data.

Architecture Differences

The AMD Ryzen 9 9950X is built on the Zen 5 architecture with the Granite Ridge codename, belonging to AMD's 9000 series. It uses a 4 nm process from TSMC and contains 16,630 million transistors across a die size of 2x 70.6 mm². This is a desktop processor that fits into AMD Socket AM5. The Intel Core Ultra 9 386H uses the Panther Lake architecture with the Panther Lake-H codename, part of Intel's Core Ultra Series 3. It is manufactured on Intel's 3 nm process and uses Intel BGA 2540 socket, targeting the mobile segment.

The core topology differs substantially. The AMD processor provides 16 cores and 32 threads, with a base clock of 4.30 GHz and a boost clock of 5.70 GHz. The Intel processor also has 16 cores but only 16 threads, with a base clock of 2.10 GHz and a boost clock of 4.90 GHz. The AMD part has a 170 W TDP, while the Intel part has a 25 W TDP, reflecting the desktop versus mobile positioning.

Cache hierarchies diverge as well. The AMD Ryzen 9 9950X uses 80 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. The Intel Core Ultra 9 386H uses 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. The Intel design has larger per-core L1 and L2 caches, while the AMD design carries significantly more L3 cache.

Memory support differs. The AMD processor supports DDR5 over a dual-channel bus with 89.6 GB/s of bandwidth and ECC memory support. The Intel processor supports both DDR5 and LPDDR5X over a dual-channel bus with 115.2 GB/s of bandwidth but no ECC memory support. The Intel part has the higher memory bandwidth figure.

PCIe connectivity also differs. The AMD Ryzen 9 9950X provides Gen 5 with 24 lanes (CPU only), while the Intel Core Ultra 9 386H provides Gen 5 with 12 lanes (CPU only). The integrated graphics differ: Radeon Graphics on the AMD side versus Intel Xe3 Graphics on the Intel side. The AMD processor has an unlocked multiplier, while the Intel part is locked. The AMD processor was released on 2024-08-14, while the Intel processor has a release date of 2026-01-04.

Head-to-Head Benchmarks

The recorded head-to-head data shows the AMD Ryzen 9 9950X winning all 15 benchmark comparisons against the Intel Core Ultra 9 386H. The margin of victory varies widely by workload, from near-parity in prime number finding to overwhelming leads in integer math.

The largest advantage appears in PassMark integer_math, where the AMD processor scores 242097 versus 87284 for Intel, a 177.4% difference. This workload, which exercises general-purpose arithmetic and logic operations, strongly favors the AMD part's higher clocks and 32 threads. Data compression shows a similar pattern: AMD scores 896544 versus 352365, a 154.4% lead. Extended instructions follow at 145.6% ahead, with AMD at 71564 and Intel at 29138.

Multi-threaded rendering benchmarks confirm the pattern. In Cinebench R23 multicore, the AMD processor scores 40924 versus 20547, a 99.2% difference. Cinebench R15 multicore shows a 96.6% lead, with AMD at 6335 and Intel at 3223. PassMark multithread shows an 86.5% advantage, with AMD at 66030 and Intel at 35399. These results track closely with the thread count difference: the AMD part runs 32 threads while the Intel part runs 16.

Random string sorting shows a 124% difference, with AMD at 94368 and Intel at 42135. This workload benefits from the AMD processor's larger L3 cache and higher memory bandwidth in practice, though the recorded memory bandwidth figure for Intel is higher at 115.2 GB/s versus 89.6 GB/s. Data encryption shows a 63.4% lead for AMD, scoring 44366 versus 27150. Floating point math shows a 46.6% advantage, with AMD at 159063 versus 108527.

Single-threaded gaps are smaller but still favor AMD. Cinebench R15 singlecore shows a 13.3% difference, with AMD at 344 and Intel at 303.5. PassMark single_thread shows a 12.3% lead, with AMD at 4737 and Intel at 4218. Cinebench R23 singlecore shows the smallest single-thread gap at 6.3%, with AMD at 2202 and Intel at 2071.5.

The closest recorded result is PassMark find_prime_numbers, where AMD scores 345 versus 341 for Intel, a 1.2% difference. PassMark physics shows an 8.3% lead for AMD, with scores of 3279 versus 3028. These two workloads represent the only cases where the Intel processor approaches parity, suggesting that certain integer-heavy single-thread patterns narrow the gap, though they never close it.

The Verdict

The database positions these processors in different market segments. The AMD Ryzen 9 9950X is a desktop part with a 170 W TDP, an unlocked multiplier, and a launch MSRP of $649. The Intel Core Ultra 9 386H is a mobile part with a 25 W TDP and a locked multiplier, with no launch MSRP recorded. The performance data reflects this split.

For multi-threaded workloads, the AMD Ryzen 9 9950X is the clear choice from the recorded benchmarks. Its 32 threads and higher boost clock of 5.70 GHz produce leads of 86.5% to 177.4% across PassMark multithread, integer math, data compression, and extended instructions. The Cinebench R23 multicore result of 40924 versus 20547 indicates that rendering and video encoding workloads will complete nearly twice as fast on the AMD part.

For single-threaded workloads, the AMD processor still leads, but by smaller margins. The 6.3% advantage in Cinebench R23 singlecore and the 12.3% lead in PassMark single_thread suggest that the Intel part's 4.90 GHz boost clock and larger per-core L1 and L2 caches help it remain competitive in lightly threaded tasks. The near-parity in find_prime_numbers, where Intel trails by only 1.2%, confirms that the Intel architecture can match the AMD part in specific integer-heavy single-thread patterns.

The Intel Core Ultra 9 386H offers advantages in other recorded dimensions. Its 25 W TDP makes it suitable for mobile platforms, while the AMD part's 170 W TDP requires desktop cooling. The Intel part supports LPDDR5X memory in addition to DDR5, and its 115.2 GB/s memory bandwidth is higher than the AMD part's 89.6 GB/s. The Intel part also carries Intel Xe3 Graphics, which may be relevant for systems without a discrete GPU.

The average benchmark score of 74640 for the AMD processor versus 43210 for the Intel processor places the AMD part in the 94th percentile of all CPUs and the Intel part in the 88th percentile. The nearest rival data confirms these standings: the AMD part trades within 1.1% of processors like the AMD EPYC 4545P and Intel Core Ultra 9 285, while the Intel part trades within 0.9% of desktop processors like the Intel Core i9-12900 and i9-12900KF. The Intel mobile part performs at the level of previous-generation desktop flagships, while the AMD desktop part competes with current high-end server and desktop silicon.

Users who need maximum throughput in multi-threaded desktop workloads should select the AMD Ryzen 9 9950X. Users who require a 16-core processor in a 25 W mobile package should select the Intel Core Ultra 9 386H. The data does not support a single winner across all use cases, but it does show a decisive performance advantage for the AMD part in every recorded benchmark.

Specification Differences

| Specification | AMD Ryzen 9 9950X | Intel Core Ultra 9 386H |

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

| Series | 9000 series | Core Ultra Series 3 |

| Manufacturer | AMD | Intel |

| Cores | 16 | 16 |

| Threads | 32 | 16 |

| Base clock | 4.30 GHz | 2.10 GHz |

| Boost clock | 5.70 GHz | 4.90 GHz |

| TDP | 170 W | 25 W |

| Socket | AMD Socket AM5 | Intel BGA 2540 |

| Architecture | Zen 5 | Panther Lake |

| Codename | Granite Ridge | Panther Lake |

| Generation | Ryzen 9 (Zen 5 (Granite Ridge)) | Ultra 9 (Panther Lake-H) |

| Process node | 4 nm | 3 nm |

| Foundry | TSMC | Intel |

| Transistors | 16,630 million | Not recorded |

| Die size | 2x 70.6 mm² | Not recorded |

| L1 cache | 80 KB (per core) | 192 KB (per core) |

| L2 cache | 1 MB (per core) | 2.5 MB (per core) |

| L3 cache | 64 MB | 18 MB (shared) |

| Memory support | DDR5 | DDR5, LPDDR5X |

| Memory bus | Dual-channel | Dual-channel |

| Memory bandwidth | 89.6 GB/s | 115.2 GB/s |

| ECC memory | Yes | No |

| PCIe | Gen 5, 24 Lanes (CPU only) | Gen 5, 12 Lanes (CPU only) |

| Integrated graphics | Radeon Graphics | Intel Xe3 Graphics |

| Market segment | Desktop | Mobile |

| Release date | 2024-08-14 | 2026-01-04 |

| Launch MSRP | $649 | Not recorded |

| Multiplier unlocked | Yes | No |

| Part number | 100-000001277 | SA4R5Q9EH |