AMD Ryzen 7 PRO 8840U vs Intel Core i5-14400 Comparison

The AMD Ryzen 7 PRO 8840U and Intel Core i5-14400 occupy different corners of the processor market, yet their average benchmark scores place them within 0.4% of each other. The AMD chip, a mobile part from the 8000 series, achieves an average benchmark score of 32233, while the Intel desktop processor, part of Core 14th Gen, scores 32115. Despite this near-parity in overall averages, the two processors diverge sharply in individual workloads, with the data showing a clear split: Intel wins 15 of the 17 head-to-head benchmark comparisons, while AMD wins only 2.

Where Each One Wins

The Intel Core i5-14400 is the dominant performer across most tested workloads. It wins every Cinebench iteration, both single-core and multi-core, across R15, R20, and R23. The margin is consistent at -5% for all six Cinebench tests, indicating a uniform advantage in rendering and CPU-bound content creation tasks. Intel also wins the PassMark multi-thread test with a score of 25080 versus AMD’s 23850, a -4.9% delta, and the single-thread test at 3741 versus 3641, a -2.7% delta. The Intel chip further leads in floating-point math, scoring 61549 against AMD’s 50746, a substantial -17.6% gap, and in physics, where it scores 1396 versus 1174, a -15.9% difference.

The AMD Ryzen 7 PRO 8840U secures its two wins in specific integer and sorting workloads. It beats Intel in PassMark integer math, scoring 88339 versus 82017, a 7.7% advantage. It also wins the random string sorting test, scoring 33109 versus 32346, a 2.4% lead. These wins suggest that AMD’s architecture has particular strengths in pure integer arithmetic and string manipulation, though these are isolated victories against a broader Intel sweep.

Head-to-Head Benchmarks

The largest single win for Intel comes in PassMark floating-point math, where the i5-14400 scores 61549 against the Ryzen’s 50746. That -17.6% delta is the widest margin in the entire comparison. The physics test shows a similar pattern, with Intel ahead by -15.9% (1396 vs 1174). These two results highlight a significant performance gap in compute-heavy, floating-point-intensive tasks.

In data compression, Intel leads by -13.4%, scoring 314995 versus 272664. This is another large margin, suggesting Intel’s advantage extends to memory-intensive throughput tasks. The Cinebench R23 multi-core result shows Intel at 21315 versus AMD’s 20254, a -5% delta. The single-core R23 result is 3009 versus 2859, also -5%. These consistent -5% margins across all Cinebench versions indicate a stable, predictable performance advantage for Intel in rendering workloads.

AMD’s wins are smaller in magnitude. The integer math victory is a 7.7% lead (88339 vs 82017), and the random string sorting win is a 2.4% lead (33109 vs 32346). In contrast, Intel’s losses are never smaller than -1.7%, seen in data encryption where Intel scores 16731 versus AMD’s 16441. The extended instructions test shows Intel ahead by -3.5% (19816 vs 19132), and the find prime numbers test shows a -5% margin (80 vs 76). The overall pattern is clear: Intel wins more often and by larger margins, with AMD’s two victories being narrower.

Architecture Differences

The two processors are built on fundamentally different architectures, nodes, and market segments. The AMD Ryzen 7 PRO 8840U uses Zen 4 architecture on a 4 nm process node from TSMC, with a codename of Hawk Point. It has 8 cores and 16 threads, with a base clock of 3.30 GHz and a boost clock of 5.10 GHz. The Intel Core i5-14400 uses Raptor Lake architecture on a 10 nm process node from Intel, with a codename of Raptor Lake-R. It has 10 cores and 16 threads, with a base clock of 2.50 GHz and a boost clock of 4.70 GHz.

Cache configurations differ notably. AMD provides 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. Intel provides 80 KB of L1 per core, 1.25 MB of L2 per core, and 20 MB of shared L3 cache. The Intel chip has more L3 cache overall, which may contribute to its lead in data compression and multi-threaded workloads. The die sizes also differ, with AMD at 178 mm² and Intel at 215 mm², though AMD integrates 25,000 million transistors while Intel’s transistor count is not listed.

The memory support and PCIe capabilities diverge. AMD supports DDR5 only, with dual-channel memory and a memory bandwidth of 89.6 GB/s. Intel supports both DDR4 and DDR5, also dual-channel, with no memory bandwidth figure listed. AMD provides PCIe Gen 4 with 20 lanes (CPU only), while Intel provides PCIe Gen 5 with 16 lanes (CPU only). Both processors support ECC memory. The integrated graphics differ: AMD has a Radeon 780M, while Intel has a UHD Graphics 730.

The market segments are opposite: AMD is a mobile processor on AMD Socket FP7, with a TDP of 28 watts. Intel is a desktop processor on Intel Socket 1700, with a TDP of 65 watts. The release dates are also different, with AMD launching on 2024-04-15 and Intel on 2024-01-07. Intel has a launch MSRP of $221, while AMD has no launch MSRP listed.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 7 PRO 8840U has an average benchmark score of 32233, while the Intel Core i5-14400 scores 32115. The difference is 0.4% in favor of AMD.

Q: How many head-to-head benchmarks does each processor win?

A: The AMD Ryzen 7 PRO 8840U wins 2 of the 17 head-to-head benchmarks, while the Intel Core i5-14400 wins 15.

Q: What is the biggest benchmark margin between the two?

A: The largest margin is in PassMark floating-point math, where the Intel Core i5-14400 scores 61549 versus the AMD’s 50746, a -17.6% difference in Intel’s favor.

Q: In which specific tests does the AMD processor win?

A: The AMD Ryzen 7 PRO 8840U wins PassMark integer math (88339 vs 82017, a 7.7% lead) and PassMark random string sorting (33109 vs 32346, a 2.4% lead).

Q: Do the processors have the same number of cores and threads?

A: No. The AMD has 8 cores and 16 threads, while the Intel has 10 cores and 16 threads. The Intel has more cores but the same thread count.

Q: Which processor supports more memory types?

A: The Intel Core i5-14400 supports both DDR4 and DDR5 memory, while the AMD Ryzen 7 PRO 8840U supports DDR5 only. Both use dual-channel memory buses.

The Verdict

The data points to a clear performance hierarchy. The Intel Core i5-14400 wins 15 of 17 benchmarks, including all Cinebench tests, all PassMark single-thread and multi-thread tests, and the majority of specialized workloads. Its wins include the largest margins, particularly in floating-point math (-17.6%), physics (-15.9%), and data compression (-13.4%). The consistent -5% margins across every Cinebench iteration reinforce Intel’s superiority in rendering and general CPU-bound productivity.

The AMD Ryzen 7 PRO 8840U is not without merit. It achieves a higher average benchmark score overall (32233 vs 32115) and wins two specific tests: integer math and random string sorting. These wins indicate that for workloads dominated by integer arithmetic or string processing, the AMD chip has a measurable advantage. However, these are narrow victories compared to Intel’s broader and larger wins.

For users prioritizing multi-threaded rendering, floating-point computation, or physics simulation, the Intel Core i5-14400 is the stronger choice based on benchmark results. For workloads centered on integer math or string sorting, the AMD Ryzen 7 PRO 8840U offers a specific edge. The Intel chip also comes with a higher core count (10 vs 8), and a higher launch MSRP of $221, though no price is listed for AMD. Given the overwhelming number of wins and the magnitude of those wins, the data favors the Intel Core i5-14400 for most general-purpose and compute-heavy tasks.

Specification Differences

| Specification | AMD Ryzen 7 PRO 8840U | Intel Core i5-14400 |

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

| Cores | 8 | 10 |

| Base Clock | 3.30 GHz | 2.50 GHz |

| Boost Clock | 5.10 GHz | 4.70 GHz |

| TDP | 28 W | 65 W |

| Socket | AMD Socket FP7 | Intel Socket 1700 |

| Process Node | 4 nm | 10 nm |

| Foundry | TSMC | Intel |

| Die Size | 178 mm² | 215 mm² |

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

| L2 Cache | 1 MB (per core) | 1.25 MB (per core) |

| L3 Cache | 16 MB (shared) | 20 MB (shared) |

| Memory Support | DDR5 | DDR4, DDR5 |

| Memory Bandwidth | 89.6 GB/s | Not listed |

| PCIe | Gen 4, 20 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |

| Integrated Graphics | Radeon 780M | UHD Graphics 730 |

| Market Segment | Mobile | Desktop |

| Release Date | 2024-04-15 | 2024-01-07 |

| Launch MSRP | Not listed | $221 |