AMD Ryzen 9 5980HS vs Intel Core i7-1265U Comparison

The Intel Core i7-1265U and AMD Ryzen 9 5980HS are both mobile processors that land at the 57th percentile among all CPUs, yet their benchmark profiles reveal two very different performance philosophies. The data shows a split decision: the AMD Ryzen 9 5980HS dominates the older Cinebench R15 tests, while the Intel Core i7-1265U turns the tables decisively in the newer Cinebench R23 suite. With an average benchmark score of 4248 for the Intel part versus 4121 for the AMD part, the overall margin is narrow, but the individual test deltas tell a story of architectural divergence rather than simple equivalence.

Head-to-Head Benchmarks

The most striking result in the head-to-head comparison is the Cinebench R23 single-core test, where the Intel Core i7-1265U scores 2195 against the AMD Ryzen 9 5980HS's 1529. That is a 43.6% advantage for Intel, the largest delta in either direction across all shared benchmarks. This is not a marginal win; it is a categorical shift in single-threaded capability. The Intel part's boost clock of 4.80 GHz matches the AMD part's 4.80 GHz exactly, so the difference must come from architectural efficiency rather than raw frequency. The Intel chip's 10 nm process and Alder Lake hybrid design clearly extract more work per clock in this workload.

The Cinebench R23 multi-core test follows a similar pattern, though the margin narrows. Intel scores 15549 versus AMD's 12629, a 23.1% lead. This is particularly notable because the AMD Ryzen 9 5980HS has 16 threads versus the Intel Core i7-1265U's 12 threads, meaning Intel wins multi-core performance despite a 33% deficit in thread count. The Intel part's 10 cores (with its hybrid arrangement) and 12 MB of shared L3 cache evidently compensate for the fewer threads, though the AMD part's 16 MB of L3 cache and Zen 3 architecture keep it competitive.

The older Cinebench R15 tests flip the script entirely. In R15 multi-core, the AMD Ryzen 9 5980HS scores 2083 versus Intel's 1567, a 24.8% advantage for AMD. In R15 single-core, AMD leads 243 to 221, a 9.1% margin. This reversal between R15 and R23 is one of the most instructive data points in the comparison. It suggests that the Intel architecture is better optimized for the newer instruction mix and workload characteristics of R23, while the AMD part retains an edge in the legacy R15 test. The R15 single-core gap of 9.1% is modest, but it is consistent with AMD's tighter per-core design in that older benchmark.

The average benchmark scores align with the R23 results, giving Intel a slim overall edge: 4248 versus 4121, a difference of roughly 3.1%. Intel's nearest rivals include the Intel Xeon E-2378 at 4232 (0.4% delta) and the Intel Xeon W-2140B at 4272 (-0.6% delta), placing the i7-1265U in a tight cluster of mid-range server and desktop parts. AMD's nearest rivals are the AMD Ryzen 7 PRO 2700X at 4114 (0.2% delta) and the Intel Core i9-9900 at 4163 (-1% delta), showing the 5980HS sits just below Intel's average in this metric.

Where Each One Wins

The AMD Ryzen 9 5980HS wins in Cinebench R15 multi-core by a substantial 24.8% margin, and it also takes R15 single-core by 9.1%. These results suggest that for workloads relying on legacy Cinebench R15 performance—often associated with older rendering pipelines or compatibility-testing scenarios—the AMD part is clearly superior. The 5980HS's 8 cores and 16 threads, running at a 3.00 GHz base clock, deliver strong throughput in this specific test, and its 35 W TDP allows for sustained performance that the lower-power Intel part cannot match in this workload.

The Intel Core i7-1265U wins decisively in Cinebench R23, both in multi-core (23.1% ahead) and single-core (43.6% ahead). This is the more modern benchmark, and the results indicate that the Intel part is better suited to contemporary rendering and productivity applications that have been updated to leverage newer instruction sets and memory access patterns. The 1265U's 10 cores (a mix of performance and efficiency cores) and 12 threads, combined with its 4.80 GHz boost clock and 12 MB L3 cache, produce higher scores in this workload despite the lower 15 W TDP. For software that has been optimized for Cinebench R23's characteristics, the Intel part is the stronger choice.

The use-case split is clear: AMD wins where legacy R15 performance matters, Intel wins where modern R23 performance matters. The R23 single-core result, in particular, points to Intel's advantage in lightly-threaded, latency-sensitive applications like web browsing, office productivity, and certain types of code compilation where single-thread speed is paramount. The R15 multi-core result, conversely, suggests AMD holds an edge in older multi-threaded batch jobs that have not been recompiled for newer instruction sets.

Architecture Differences

The two processors are built on fundamentally different foundations. The Intel Core i7-1265U uses Alder Lake architecture on a 10 nm process node, fabricated by Intel, while the AMD Ryzen 9 5980HS uses Zen 3 architecture on a 7 nm process node, fabricated by TSMC. This process node difference is significant: the 7 nm node allows AMD to pack 10,700 million transistors into a 180 mm² die, whereas Intel's 10 nm process does not have comparable transistor or die size data listed. The smaller process node typically enables higher transistor density and better power efficiency per transistor, though the benchmark results show Intel's architecture compensates effectively in single-threaded performance.

Core and thread configurations differ markedly. The Intel part has 10 cores and 12 threads, while the AMD part has 8 cores and 16 threads. The Intel configuration suggests a hybrid design with fewer than 10 performance cores (likely 2 performance cores and 8 efficiency cores, given the 12-thread count), whereas the AMD part uses 8 full Zen 3 cores with simultaneous multithreading. The cache hierarchies reflect these design choices: Intel uses 80 KB of L1 cache per core and 1.25 MB of L2 per core, while AMD uses 64 KB L1 per core and 512 KB L2 per core. However, AMD has a larger shared L3 cache at 16 MB versus Intel's 12 MB, which may benefit multi-threaded workloads that share data across cores.

Memory support also diverges. The Intel part supports both DDR4 and DDR5 memory with a dual-channel bus, while the AMD part supports only DDR4 but lists a specific memory bandwidth of 68.3 GB/s. PCIe connectivity favors Intel with Gen 4 and 20 lanes (CPU only), versus AMD's Gen 3 with 16 lanes. Integrated graphics differ as well: Intel includes Iris Xe 96EU, while AMD includes Radeon Vega 8. Both are mobile processors with active production status, but the Intel part was released later (2022-02-22) than the AMD part (2021-01-11), and neither has a listed launch MSRP. Both have locked multipliers.

FAQ

Q: Which processor has the higher single-core performance in Cinebench R23?

A: The Intel Core i7-1265U scores 2195 in Cinebench R23 single-core, which is 43.6% higher than the AMD Ryzen 9 5980HS's 1529. This is the largest performance gap in any shared benchmark.

Q: How do the two processors compare in multi-threaded Cinebench R15 performance?

A: The AMD Ryzen 9 5980HS wins Cinebench R15 multi-core with a score of 2083, while the Intel Core i7-1265U scores 1567. This represents a 24.8% advantage for AMD in this legacy benchmark.

Q: What are the core and thread counts for each processor?

A: The Intel Core i7-1265U has 10 cores and 12 threads, while the AMD Ryzen 9 5980HS has 8 cores and 16 threads. Despite having fewer threads, the Intel part wins Cinebench R23 multi-core by 23.1%.

Q: Which processor has a larger L3 cache?

A: The AMD Ryzen 9 5980HS has 16 MB of shared L3 cache, while the Intel Core i7-1265U has 12 MB of shared L3 cache. The AMD part also uses 512 KB of L2 per core, whereas Intel uses 1.25 MB per core.

Q: Do both processors support the same memory types?

A: No. The Intel Core i7-1265U supports both DDR4 and DDR5 memory, while the AMD Ryzen 9 5980HS supports only DDR4. Both use a dual-channel memory bus, but AMD lists a memory bandwidth of 68.3 GB/s.

Q: What is the average benchmark score difference between the two?

A: The Intel Core i7-1265U has an average benchmark score of 4248, while the AMD Ryzen 9 5980HS averages 4121. This puts Intel approximately 3.1% ahead overall, and both processors sit at the 57th percentile among all CPUs.

The Verdict

The data indicates that the Intel Core i7-1265U is the stronger choice for modern, single-threaded and lightly-threaded workloads. Its 43.6% lead in Cinebench R23 single-core and 23.1% lead in R23 multi-core are substantial, and they align with the average benchmark score advantage of 4248 versus 4121. The Intel part achieves this with a 15 W TDP, half the thermal envelope of the AMD part's 35 W TDP, making it the more power-efficient option for thin-and-light laptops where sustained single-thread performance is critical.

The AMD Ryzen 9 5980HS is the better pick for workloads that are still tied to Cinebench R15-era performance characteristics. Its 24.8% multi-core and 9.1% single-core wins in R15 suggest that legacy rendering pipelines, compatibility suites, or older multi-threaded applications will run faster on the AMD platform. The AMD part also offers more threads (16 versus 12), a larger L3 cache (16 MB versus 12 MB), and a higher base clock (3.00 GHz versus 1.80 GHz), which may benefit sustained multi-threaded throughput in older software.

For most users running current-generation applications, the Intel Core i7-1265U is the data-backed recommendation. The newer R23 benchmark results are more representative of modern software performance, and Intel's 43.6% single-core advantage is decisive. However, for users with specific legacy workload requirements, the AMD Ryzen 9 5980HS's R15 leadership cannot be ignored. The overall average scores are close, but the direction of the delta favors Intel in the benchmark suite that matters for today's software. Choose Intel for modern performance and efficiency, choose AMD for legacy R15-centric workloads and higher thread counts.