AMD Ryzen 9 7845HX vs Intel Core i7-14700HX Comparison

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i7-14700HX has 20 cores and 28 threads, while the AMD Ryzen 9 7845HX has 12 cores and 24 threads. The Intel part leads by 8 cores and 4 threads.

Q: How do the two chips compare in single-core performance?

A: The Intel Core i7-14700HX wins in Cinebench R23 single-core by 13.6% (2103 vs 1852) and edges out the AMD chip in Cinebench R15 single-core by 0.3% (296 vs 295) and PassMark single-thread by 0.3% (3947 vs 3935). However, the AMD Ryzen 9 7845HX wins Geekbench single-core by 11.4% (2389 vs 2116).

Q: Which processor has the higher boost clock?

A: The Intel Core i7-14700HX has a boost clock of 5.50 GHz, which is higher than the AMD Ryzen 9 7845HX's 5.20 GHz. The AMD chip has a higher base clock at 3.00 GHz versus 2.10 GHz for the Intel part.

Q: What is the difference in cache hierarchy?

A: The AMD Ryzen 9 7845HX has a larger shared L3 cache at 64 MB, while the Intel Core i7-14700HX has 33 MB shared L3. Per-core L1 and L2 caches differ as well: Intel has 80 KB L1 and 2 MB L2 per core, while AMD has 64 KB L1 and 1 MB L2 per core.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i7-14700HX and the AMD Ryzen 9 7845HX support ECC memory. Both are unlocked multipliers and target the mobile market segment.

Q: Which chip has the higher average benchmark score?

A: The AMD Ryzen 9 7845HX has a higher average benchmark score of 46654, compared to 45953 for the Intel Core i7-14700HX. Both rank in the 89th percentile of all CPUs.

Architecture Differences

The Intel Core i7-14700HX is built on Raptor Lake architecture (Raptor Lake-HX refresh) using Intel's 10 nm process node, with a die size of 257 mm². The AMD Ryzen 9 7845HX uses Zen 4 architecture (Dragon Range) on TSMC's 5 nm node, with a dual-die configuration totaling 2x 71 mm² and 13,140 million transistors. The process node difference is significant — 10 nm versus 5 nm — and the Intel die is substantially larger.

The core configuration differs fundamentally. Intel uses a hybrid design with 20 cores and 28 threads, while AMD uses a monolithic 12-core, 24-thread arrangement. The cache hierarchy reflects this: Intel allocates 80 KB L1 and 2 MB L2 per core, with 33 MB shared L3. AMD provides 64 KB L1 and 1 MB L2 per core, but a much larger 64 MB shared L3. This larger L3 pool is a key architectural advantage for AMD in cache-sensitive workloads.

Memory support also diverges. The Intel chip supports both DDR4 and DDR5, while the AMD chip supports DDR5 only. The AMD part has a documented memory bandwidth of 83.2 GB/s, whereas the Intel part's memory bandwidth is unspecified. Both use dual-channel memory buses.

PCIe lanes differ: Intel offers Gen 5 with 16 lanes (CPU only), while AMD provides Gen 5 with 28 lanes (CPU only). Integrated graphics also differ — Intel has UHD Graphics 770, AMD has Radeon 610M. Both are soldered mobile parts (Intel BGA 1964 vs AMD Socket FL1) and both have unlocked multipliers.

The release dates are distinct: the AMD Ryzen 9 7845HX was released on 2023-01-03, while the Intel Core i7-14700HX was released on 2024-01-07. Both are currently Active in production.

The Verdict

The data presents a clear split between the two processors. The AMD Ryzen 9 7845HX wins 13 of the 17 head-to-head benchmark comparisons, while the Intel Core i7-14700HX wins 4. The AMD chip's average benchmark score is 46654 versus 45953 for the Intel part, a 1.5% overall advantage.

For multi-threaded workloads, the AMD Ryzen 9 7845HX is the decisive choice. It leads by 8.5% in Cinebench R23 multi-core (26876 vs 24595), by 11.8% in Cinebench R15 multi-core (4320 vs 3812), and by 13.5% in Geekbench multi-core (16633 vs 14390). PassMark multi-thread shows an 18.8% gap (45010 vs 36566). The AMD chip also dominates in specialized workloads: extended instructions (41020 vs 25718, a 37.3% lead), find prime numbers (329 vs 165, a 49.8% lead), and data encryption (32789 vs 26092, a 20.4% lead).

The Intel Core i7-14700HX holds a narrow but meaningful edge in single-threaded rendering. Its Cinebench R23 single-core score of 2103 is 13.6% higher than the AMD's 1852. The Intel part also takes Cinebench R15 single-core (296 vs 295) and PassMark single-thread (3947 vs 3935), but by margins under 1%. Notably, the AMD chip wins Geekbench single-core by 11.4% (2389 vs 2116), which complicates the single-thread picture — the Intel advantage is consistent in Cinebench and PassMark, but not universal.

For users prioritizing heavy parallel workloads — rendering, compression, encryption, scientific computing — the AMD Ryzen 9 7845HX is the pick. The data shows it is faster in nearly every multi-threaded test, sometimes by wide margins. For users who value peak single-thread performance in Cinebench-class workloads, the Intel Core i7-14700HX offers a 13.6% advantage in R23 single-core, though the AMD chip's Geekbench single-core win suggests the gap is workload-dependent. Both are 89th percentile CPUs, so either will be a capable mobile workstation processor.

Specification Differences

| Field | Intel Core i7-14700HX | AMD Ryzen 9 7845HX |

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

| Cores | 20 | 12 |

| Threads | 28 | 24 |

| Base Clock | 2.10 GHz | 3.00 GHz |

| Boost Clock | 5.50 GHz | 5.20 GHz |

| Socket | Intel BGA 1964 | AMD Socket FL1 |

| Architecture | Raptor Lake | Zen 4 |

| Codename | Raptor Lake-HX | Dragon Range |

| Generation | Core i7 (Raptor Lake-HX Refresh) | Ryzen 9 (Zen 4 (Dragon Range)) |

| Process Node | 10 nm | 5 nm |

| Foundry | Intel | TSMC |

| Transistors | Not specified | 13,140 million |

| Die Size | 257 mm² | 2x 71 mm² |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L2 Cache | 2 MB (per core) | 1 MB (per core) |

| L3 Cache | 33 MB (shared) | 64 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5 |

| Memory Bandwidth | Not specified | 83.2 GB/s |

| PCIe | Gen 5, 16 Lanes (CPU only) | Gen 5, 28 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 770 | Radeon 610M |

| Release Date | 2024-01-07 | 2023-01-03 |

| Part Number | SRMXG | 100-000000871 |

Head-to-Head Benchmarks

The AMD Ryzen 9 7845HX takes the largest win in PassMark extended instructions, scoring 41020 against the Intel's 25718 — a 37.3% advantage. This is the most lopsided result in the entire comparison. The next biggest gap is in PassMark find prime numbers, where AMD scores 329 versus Intel's 165, a 49.8% lead. Both tests indicate a substantial AMD advantage in instruction-heavy and integer-bound workloads.

PassMark data compression also favors AMD heavily, with a score of 543539 versus 438539, a 19.3% gap. The AMD part wins PassMark random string sorting by 23.2% (63223 vs 48544) and PassMark data encryption by 20.4% (32789 vs 26092). PassMark multi-thread shows an 18.8% lead for AMD (45010 vs 36566), and PassMark integer math gives AMD a 15.4% edge (155118 vs 131296).

In Cinebench, the AMD chip leads multi-core R15 by 11.8% (4320 vs 3812) and multi-core R23 by 8.5% (26876 vs 24595). Geekbench multi-core shows a 13.5% AMD advantage (16633 vs 14390). Even in floating-point math, where the scores are closest, AMD wins by 0.5% (94287 vs 93836). PassMark physics gives AMD a 4% lead (2346 vs 2252).

The Intel Core i7-14700HX's wins are concentrated in single-threaded tests. Its Cinebench R23 single-core score of 2103 beats AMD's 1852 by 13.6% — the Intel chip's largest victory. In Cinebench R15 single-core, Intel wins by 0.3% (296 vs 295), and in PassMark single-thread, Intel wins by 0.3% (3947 vs 3935). The Geekbench single-core test goes the other way, with AMD winning by 11.4% (2389 vs 2116), which is worth noting as the only single-thread test where AMD leads.

The overall score distribution is one-sided: AMD wins 13 tests, Intel wins 4. The AMD victories often come with double-digit margins, while the Intel wins are either narrow (under 1%) or confined to a single benchmark family (Cinebench R23 single-core). This suggests the AMD Ryzen 9 7845HX is the stronger all-around performer, with the Intel part offering a specific single-thread advantage in Cinebench workloads but trailing across the broader benchmark suite.