AMD Ryzen 9 7940H vs Intel Core i7-14650HX Comparison

Where Each One Wins

The benchmark data splits these two mobile processors into distinct personality profiles. The Intel Core i7-14650HX takes 11 of the 17 recorded head-to-head tests, while the AMD Ryzen 9 7940H claims 6. But the wins are not scattered randomly; they cluster around specific workload types.

The Intel part dominates in raw computational throughput. Its largest victories come in prime number finding (87.7% ahead), physics simulation (69.4% ahead), and floating point math (37% ahead). These are classic compute-heavy workloads that scale with core count and memory bandwidth. The data also shows Intel winning the multicore Cinebench R15 and R20 tests, plus every PassMark integer, encryption, compression, and multithread test. This is a processor built for sustained, parallel number crunching.

The AMD Ryzen 9 7940H answers with a different strategy. Its wins concentrate in single-thread performance and newer rendering benchmarks. The most striking result is Cinebench R23 single-core, where AMD leads by 43.5%. It also wins Cinebench R23 multicore by 17.2%, which is notable because Intel wins the older R15 and R20 multicore tests. The Ryzen also takes the single-thread PassMark test and the extended instructions suite. This suggests AMD's Zen 4 cores deliver higher per-thread efficiency, especially in workloads that reward newer instruction paths.

The overall database percentiles reflect this near-parity: Intel sits at the 88th percentile of all CPUs with an average benchmark score of 41576, while AMD holds the 87th percentile with 40431. The average scores differ by only 2.8%, yet the workload-specific deltas reach as high as 87.7%. That spread tells the real story: these are not interchangeable chips, they are specialized tools.

FAQ

Q: Which processor is faster in single-core performance?

A: The AMD Ryzen 9 7940H wins the majority of single-thread tests. It leads by 43.5% in Cinebench R23 single-core and by 2.8% in PassMark single-thread, while also winning Cinebench R15 single-core by 18.7%. The Intel Core i7-14650HX wins only Cinebench R20 single-core, by 15.2%.

Q: Which chip wins in multi-core workloads?

A: The Intel Core i7-14650HX wins Cinebench R15 multicore by 39.4%, Cinebench R20 multicore by 15.1%, and PassMark multithread by 15.2%. However, the AMD Ryzen 9 7940H wins Cinebench R23 multicore by 17.2%, showing that the results depend heavily on which rendering test is used.

Q: How do their overall benchmark averages compare?

A: The Intel Core i7-14650HX has an average benchmark score of 41576 and sits at the 88th percentile of all CPUs. The AMD Ryzen 9 7940H averages 40431 and sits at the 87th percentile. The Intel chip's average is roughly 2.8% higher.

Q: Which processor has more cores and threads?

A: The Intel Core i7-14650HX has 16 cores and 24 threads. The AMD Ryzen 9 7940H has 8 cores and 16 threads. Intel's core count advantage is double the AMD part's physical core count.

Q: What does the Cinebench R23 result tell us that R15 and R20 do not?

A: The AMD Ryzen 9 7940H wins Cinebench R23 multicore by 17.2% despite losing R15 and R20 multicore. This suggests the R23 workload leverages the Ryzen's architecture differently, possibly through better scaling with its Zen 4 design or more efficient use of its higher base clock.

Q: Which processor is better for encryption and compression tasks?

A: The Intel Core i7-14650HX leads in both. It scores 8.6% higher in data encryption and 13.2% higher in data compression, making it the stronger choice for archiving and security-related workloads.

Head-to-Head Benchmarks

The largest single victory belongs to Intel in the PassMark find prime numbers test. The i7-14650HX scores 152 against the Ryzen's 81, a 87.7% gap. Prime number generation is notoriously dependent on integer throughput and core scaling, which explains why the 16-core Intel part runs away with it. The physics test shows a similar pattern: Intel scores 2202 versus 1300, a 69.4% lead. Both tests reward the Intel chip's wider core configuration.

Floating point math also favors Intel decisively. The i7-14650HX posts 84999 versus 62057 for AMD, a 37% advantage. Integer math follows with Intel at 116661 against 101977, a 14.4% lead. Even in data compression, where AMD's architecture might be expected to compete, Intel wins 398418 to 352077, a 13.2% margin. The multithread PassMark result confirms the trend: 33495 for Intel versus 29063 for AMD, 15.2% ahead.

The AMD side has its own headline numbers. The Cinebench R23 single-core result is the most dramatic: AMD scores 3487 against Intel's 1969, a 43.5% blowout. This is not a marginal lead; it is a generational gap in per-thread efficiency. The R23 multicore result also goes to AMD, 24703 versus 20454, a 17.2% margin that flips the script from the R15 and R20 multicore tests where Intel leads by 39.4% and 15.1% respectively.

The extended instructions test reveals another AMD strength. AMD scores 26804 against Intel's 24150, a 9.9% lead. This test often reflects how well a processor handles newer SIMD instruction sets, and Zen 4's modern design shows through here. The PassMark single-thread test gives AMD a narrower win, 3952 versus 3841, a 2.8% margin, while the R15 single-core test shows AMD ahead 351 to 285.5, an 18.7% gap.

The smallest margin in the entire dataset is random string sorting, where Intel wins 43035 to 42093, just 2.2% apart. This near-tie suggests that memory latency and cache behavior are closely matched in this specific workload, even though the two chips use very different cache architectures.

Specification Differences

The core and thread counts present the most obvious divergence. Intel offers 16 cores and 24 threads, while AMD provides 8 cores and 16 threads. This 2x core difference explains many of Intel's multicore wins, but it also makes AMD's single-core victories more impressive given the smaller core budget.

Clock speeds tell a nuanced story. The AMD part has a 4.00 GHz base clock versus Intel's 2.20 GHz, a substantial difference that helps AMD in lightly threaded tasks and in keeping single-core performance high. Both chips boost to 5.20 GHz, so peak single-core frequency is identical even though their architectures achieve it differently.

Thermal design power differs significantly. Intel is rated at 55 watts, while AMD is rated at 35 watts. This 20 watt gap suggests the AMD part can deliver its performance within a lower power envelope, which matters for thin-and-light laptops where cooling is constrained.

The platform interfaces diverge as well. Intel uses the Intel BGA 1964 socket, while AMD uses the AMD Socket FP8. Intel supports both DDR4 and DDR5 memory, whereas AMD supports only DDR5. Both run dual-channel memory, but AMD lists a specific memory bandwidth of 89.6 GB/s while Intel's figure is not recorded. PCIe connectivity also differs: Intel provides Gen 5 with 16 CPU lanes, while AMD provides Gen 4 with 20 CPU lanes.

The integrated graphics present another distinction. Intel includes UHD Graphics 710, while AMD includes the Radeon 780M. The database does not include graphics benchmarks, so their relative performance cannot be assessed from this data, but the different GPU architectures may affect laptop choices for users who rely on integrated graphics.

The Intel part has an unlocked multiplier, while the AMD part does not. Intel's production status is listed as Active with a release date of 2024-01-07, while AMD's release date is not recorded. Both are mobile-market parts.

Architecture Differences

The two processors come from fundamentally different design philosophies. Intel's Core i7-14650HX is built on the Raptor Lake architecture, specifically the Raptor Lake-HX refresh, and belongs to the Core 14th Gen series. AMD's Ryzen 9 7940H uses the Zen 4 architecture with the Phoenix codename, part of the 7000 series.

The manufacturing process separates them sharply. Intel fabricates its chip on a 10 nm process at its own foundry, resulting in a die size of 257 mm². AMD uses TSMC's 4 nm process, producing a die of 178 mm². AMD's process advantage is clear: a smaller die on a more advanced node, which helps explain its lower 35 watt TDP despite a higher base clock. AMD also lists 25,000 million transistors, while Intel's transistor count is not recorded.

Cache hierarchies differ in both capacity and organization. Intel provides 80 KB of L1 per core, 2 MB of L2 per core, and 30 MB of shared L3. AMD provides 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. Intel's L3 cache is nearly double AMD's, which likely contributes to its wins in compression and encryption tasks that benefit from larger working sets. AMD's smaller cache, combined with its 4 nm process and higher base clock, may explain its single-thread efficiency advantage.

The memory controller differs in scope. Intel supports both DDR4 and DDR5, giving laptop makers flexibility with older memory standards. AMD only supports DDR5, but lists a specific bandwidth of 89.6 GB/s. Both support ECC memory, which is notable for mobile processors.

PCIe capabilities reflect different priorities. Intel offers Gen 5 with 16 CPU lanes, prioritizing bandwidth for the fastest SSDs and GPUs. AMD offers Gen 4 with 20 lanes, which provides more lanes but at a lower generation speed. The practical impact depends on the laptop's expansion needs.

The Verdict

The Intel Core i7-14650HX is the choice for compute-heavy parallel workloads. Its 16 cores and 24 threads deliver dominant results in prime number finding, physics simulation, floating point math, integer math, data compression, and data encryption. Users who compile code, run scientific simulations, or process large datasets will find the Intel part consistently ahead, often by double-digit margins.

The AMD Ryzen 9 7940H is the choice for single-thread performance and efficiency. Its 43.5% lead in Cinebench R23 single-core and its 17.2% win in R23 multicore show that Zen 4's per-core strength can overcome a 2x core deficit in some modern workloads. The 35 watt TDP and 4 nm process also make it the more power-efficient option, which matters for battery life and slim chassis designs.

The overall averages are close: Intel at 41576 versus AMD at 40431, a 2.8% gap. But that near-tie hides the wide spread of workload-specific results. The database shows two chips that trade blows depending on the test. Intel wins 11 tests, AMD wins 6. Yet AMD's wins include the most modern rendering benchmark, Cinebench R23, in both single and multicore forms. That suggests AMD's architecture may age better as software optimizes for newer instruction sets and higher per-thread throughput.

For the buyer, the decision comes down to workload priorities. The Intel part rewards heavily threaded, older-style compute tasks with margins up to 87.7%. The AMD part rewards efficiency, single-thread responsiveness, and newer rendering workloads. Neither chip is a universal winner, and the data does not support declaring one objectively superior. The user who knows whether their applications favor integer throughput or single-thread efficiency already has the answer.