AMD Ryzen 7 PRO 8840U vs Intel Core i5-14600T Comparison

The Verdict

The benchmark data presents a clear overall winner in raw performance: the Intel Core i5-14600T takes 16 of the 17 recorded head-to-head tests, with the AMD Ryzen 7 PRO 8840U winning only a single test. The Intel part leads by a consistent 10.8% across all six Cinebench tests, both single-core and multi-core. Beyond Cinebench, Intel's advantages range from a modest 2.8% in single-threaded PassMark to a dominant 59.5% in the physics workload.

However, the selection between these two processors depends heavily on the intended platform. The Intel Core i5-14600T is a desktop part with a 35 W TDP, while the AMD Ryzen 7 PRO 8840U is a mobile processor with a 28 W TDP. The Intel chip delivers higher performance in nearly every measured workload, but the AMD chip offers a smaller footprint, a more modern 4 nm process node, and a newer generation architecture in Zen 4. The AMD part also includes a more powerful integrated GPU, the Radeon 780M, compared to Intel's UHD Graphics 770.

For users building a desktop system where power draw is secondary to peak performance, the Intel Core i5-14600T is the clear choice from the data. For those prioritizing a mobile platform, lower power consumption, or a stronger integrated graphics solution, the AMD Ryzen 7 PRO 8840U becomes the more sensible pick. The average benchmark scores confirm the gap: the Intel chip averages 32707 across all tests, while the AMD chip averages 32233. Both sit at the 83rd percentile among all CPUs, placing them in the same overall performance tier despite the Intel chip's frequent wins.

Architecture Differences

The two processors come from fundamentally different design philosophies. The Intel Core i5-14600T uses the Raptor Lake architecture, specifically the Raptor Lake-R refresh, built on Intel's 10 nm process node with a die size of 257 mm². The AMD Ryzen 7 PRO 8840U uses the Zen 4 architecture under the Hawk Point codename, built on TSMC's 4 nm process with a die size of 178 mm². AMD's process advantage is clear: a smaller die on a more advanced node, with 25,000 million transistors packed into that space.

Core counts differ significantly. The Intel part offers 14 cores and 20 threads, while the AMD part offers 8 cores and 16 threads. This 6-core and 4-thread advantage explains much of Intel's multi-core performance lead. The Intel cache hierarchy uses 80 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3. The AMD part uses 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. Intel has the larger cache at every level.

Memory support also diverges. The Intel chip supports both DDR4 and DDR5 memory, while the AMD chip supports DDR5 only. Both use dual-channel memory buses. The AMD part has a recorded memory bandwidth of 89.6 GB/s, while the Intel part has no memory bandwidth figure recorded. Both support ECC memory. PCIe connectivity differs: Intel offers Gen 5 with 16 lanes from the CPU, while AMD offers Gen 4 with 20 lanes from the CPU.

The integrated graphics solutions are distinct as well. Intel pairs the CPU with UHD Graphics 770, while AMD uses the Radeon 780M. The AMD solution is generally more capable for graphics workloads, though the benchmark data does not include direct GPU comparisons. The Intel part is a desktop component on Socket 1700, released on 2024-01-07, while the AMD part is a mobile component on Socket FP7, released on 2024-04-15. Both are active production parts with locked multipliers.

Head-to-Head Benchmarks

The Cinebench results tell a consistent story of Intel superiority. Across R15, R20, and R23, the Intel Core i5-14600T wins every single-core and multi-core test by exactly 10.8%. In Cinebench R23 multi-core, Intel scores 22447 against AMD's 20254, a difference of 2193 points. In single-core R23, Intel scores 3169 against 2859. The 10.8% margin is remarkably uniform, suggesting a consistent architectural advantage rather than workload-specific behavior.

The PassMark suite shows a wider range of outcomes. Intel wins data compression 301827 to 272664, a 10.7% margin. Data encryption goes to Intel 18226 to 16441, a 10.9% edge. Integer math favors Intel 95112 to 88339, a 7.7% lead. Floating point math shows a larger gap: Intel scores 64726 against AMD's 50746, a 27.5% advantage. Random string sorting is closer, with Intel at 34310 and AMD at 33109, only a 3.6% difference. Single-thread performance is also close: Intel scores 3744 against 3641, a 2.8% edge.

The most dramatic gaps appear in two specific workloads. In find prime numbers, Intel scores 121 against AMD's 76, a 59.2% advantage. In physics, Intel scores 1873 against 1174, a 59.5% margin. These are the largest deltas in the entire comparison, indicating that Intel's architecture handles these particular integer and physics workloads far more efficiently. The only AMD victory comes in extended instructions, where AMD scores 19132 against Intel's 16985, an 11.2% lead. This is the sole bright spot for AMD in the recorded data.

Specification Differences

| Specification | Intel Core i5-14600T | AMD Ryzen 7 PRO 8840U |

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

| Cores | 14 | 8 |

| Threads | 20 | 16 |

| Base clock | 1.80 GHz | 3.30 GHz |

| Boost clock | 5.10 GHz | 5.10 GHz |

| TDP | 35 W | 28 W |

| Socket | Intel Socket 1700 | AMD Socket FP7 |

| Architecture | Raptor Lake | Zen 4 |

| Codename | Raptor Lake-R | Hawk Point |

| Process node | 10 nm | 4 nm |

| Foundry | Intel | TSMC |

| Die size | 257 mm² | 178 mm² |

| Transistors | Not recorded | 25,000 million |

| L1 cache | 80 KB per core | 64 KB per core |

| L2 cache | 2 MB per core | 1 MB per core |

| L3 cache | 24 MB shared | 16 MB shared |

| Memory support | DDR4, DDR5 | DDR5 |

| Memory bandwidth | Not recorded | 89.6 GB/s |

| PCIe | Gen 5, 16 lanes | Gen 4, 20 lanes |

| Integrated graphics | UHD Graphics 770 | Radeon 780M |

| Market segment | Desktop | Mobile |

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

| Launch MSRP | $255 | Not recorded |

The base clocks differ notably: the AMD chip runs at 3.30 GHz base, while the Intel chip sits at 1.80 GHz base. Both reach the same 5.10 GHz boost clock. The Intel part draws 35 W, the AMD part draws 28 W. The AMD chip uses a smaller 4 nm process from TSMC, while Intel uses its own 10 nm process. The Intel die is 257 mm², the AMD die is 178 mm².

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i5-14600T has 14 cores and 20 threads. The AMD Ryzen 7 PRO 8840U has 8 cores and 16 threads.

Q: What is the performance gap in multi-core workloads?

A: The Intel Core i5-14600T leads by 10.8% in every Cinebench multi-core test. In R23 multi-core, Intel scores 22447 against AMD's 20254. In PassMark multithread, Intel leads 26409 to 23850, a 10.7% margin.

Q: In which test does the AMD Ryzen 7 PRO 8840U win?

A: The AMD chip wins only in PassMark extended instructions, scoring 19132 against Intel's 16985, an 11.2% advantage.

Q: Do both processors support ECC memory?

A: Yes, both the Intel Core i5-14600T and the AMD Ryzen 7 PRO 8840U support ECC memory.

Q: What memory types does each processor support?

A: The Intel Core i5-14600T supports both DDR4 and DDR5. The AMD Ryzen 7 PRO 8840U supports DDR5 only. Both use dual-channel memory buses.

Q: How do the integrated graphics compare?

A: The Intel Core i5-14600T includes UHD Graphics 770, while the AMD Ryzen 7 PRO 8840U includes Radeon 780M. The benchmark data does not include direct GPU comparison tests.

Where Each One Wins

The Intel Core i5-14600T wins across the vast majority of workloads. Its 10.8% lead in all Cinebench tests, both single and multi-core, makes it the preferred choice for rendering, video encoding, and any application that scales with Cinebench-style CPU performance. The 59.5% advantage in PassMark physics and the 59.2% lead in find prime numbers suggest strong performance in simulation and integer-heavy computation. The 27.5% lead in floating point math indicates advantages in scientific computing and numerical analysis. Data compression and encryption also favor Intel, with margins of 10.7% and 10.9% respectively. For users running heavily threaded desktop workloads, the Intel chip's 14 cores and 20 threads provide a structural advantage that shows up consistently in the data.

The AMD Ryzen 7 PRO 8840U wins in extended instructions, scoring 19132 against 16985, an 11.2% advantage. This suggests the Zen 4 architecture handles certain advanced instruction sets more efficiently. The AMD chip also offers practical advantages that are not captured in these CPU benchmark scores: a 28 W TDP versus 35 W, a 4 nm process versus 10 nm, a smaller 178 mm² die, and the Radeon 780M integrated graphics. For mobile systems where power efficiency and integrated GPU capability matter, the AMD part is the stronger choice. The 3.30 GHz base clock also gives it a higher baseline frequency, which can benefit lighter, short-duration workloads that do not sustain boost clocks.

The data supports a straightforward split: desktop builders seeking maximum CPU performance should select the Intel Core i5-14600T, while mobile users prioritizing efficiency and integrated graphics should select the AMD Ryzen 7 PRO 8840U. Both processors sit at the 83rd percentile among all CPUs, so neither is a weak performer. The Intel chip simply delivers more performance in more tests, while the AMD chip delivers its advantages in areas the benchmark suite does not directly measure.