Intel Core i9-13900H vs Intel Core Ultra 5 135H Comparison

The Intel Core Ultra 5 135H and Intel Core i9-13900H are two mobile processors from different Intel generations, and the benchmark data reveals a clear performance hierarchy between them. The Core i9-13900H, a Raptor Lake-H part, dominates the Core Ultra 5 135H, a Meteor Lake chip, across every single benchmark metric recorded. Out of 17 head-to-head comparisons, the Core i9-13900H wins all 17, with the Core Ultra 5 135H failing to secure a single victory. This analysis will walk through the specific numbers, architectural differences, and use-case implications of this one-sided matchup.

Head-to-Head Benchmarks

The most significant performance gap appears in multi-threaded workloads. In Cinebench R23 multi-core, the Core i9-13900H scores 17471, which is 32% ahead of the Core Ultra 5 135H’s 11875.5. The margin widens in Cinebench R15 multi-core, where the i9-13900H’s 2666.5 score beats the Ultra 5’s 1718 by 35.6%. These are substantial deltas, indicating that the i9-13900H is the clear choice for rendering, video encoding, and other heavily threaded tasks.

Single-threaded performance also favors the Core i9-13900H, though by a smaller margin. In Cinebench R23 single-core, the i9-13900H scores 1964.5, which is 13.5% higher than the Ultra 5’s 1700. The gap narrows further in PassMark single-thread tests, where the i9-13900H scores 3754 versus the Ultra 5’s 3521, a difference of just 6.2%. This suggests that while the i9-13900H has the edge in everyday responsiveness and lightly-threaded applications, the Ultra 5 is not far behind in raw single-core capability.

The PassMark suite reinforces the i9-13900H’s dominance across varied workloads. In integer math, the i9-13900H scores 97159, beating the Ultra 5’s 73509 by 24.3%. Floating-point math shows a 21.2% advantage for the i9-13900H (69611 vs 54867). Data compression is a strong point for the i9-13900H, with a score of 326425 versus 251651 for the Ultra 5, a 22.9% lead. Even in tasks where the Ultra 5 might be expected to compete, such as extended instructions, the i9-13900H wins by 22.3% (19330 vs 15028).

The i9-13900H also leads in memory-sensitive and encryption workloads. Its data encryption score of 18974 is 20.8% higher than the Ultra 5’s 15026. Random string sorting shows an 18.7% advantage for the i9-13900H (35637 vs 28980). The multithread PassMark score, which aggregates many of these tests, gives the i9-13900H a 27673 score, 19% above the Ultra 5’s 22422. Physics simulation also favors the i9-13900H, with a 1745 score versus 1482, a 15.1% difference.

It is worth remembering neither processor holds a significant overall percentile advantage. Both the Core Ultra 5 135H and the Core i9-13900H sit at the 81st percentile among all CPUs. Their average benchmark scores are also very close: 29093 for the Ultra 5 and 28886 for the i9-13900H. This means that despite the i9-13900H’s consistent wins in this direct comparison, the two are roughly equivalent in overall standing within the broader CPU market, with the Ultra 5 even having a slightly higher average score.

FAQ

Q: Which processor has a higher boost clock speed?

A: The Intel Core i9-13900H has a boost clock of 5.40 GHz, while the Intel Core Ultra 5 135H has a boost clock of 4.60 GHz.

Q: Does the Core Ultra 5 135H win any benchmark against the Core i9-13900H?

A: No. Based on the head-to-head data, the Core i9-13900H wins all 17 recorded benchmarks, with the Core Ultra 5 135H recording 0 wins.

Q: What is the largest performance gap between the two processors?

A: The largest recorded gap is in Cinebench R15 multi-core, where the Core i9-13900H scores 2666.5 and the Core Ultra 5 135H scores 1718, resulting in a 35.6% delta in favor of the i9-13900H.

Q: How do the two processors compare in Cinebench R23 single-core performance?

A: The Core i9-13900H scores 1964.5, which is 13.5% higher than the Core Ultra 5 135H’s score of 1700.

Q: What are the average benchmark scores for each processor?

A: The Intel Core Ultra 5 135H has an average benchmark score of 29093, and the Intel Core i9-13900H has an average benchmark score of 28886.

Q: Which processor has a larger L3 cache?

A: The Intel Core i9-13900H has 24 MB of shared L3 cache, while the Intel Core Ultra 5 135H has 18 MB of shared L3 cache.

The Verdict

The data is unequivocal: the Intel Core i9-13900H is the superior processor for anyone prioritizing raw performance. It wins every single benchmark in this comparison, with margins ranging from 6.2% in PassMark single-thread to 35.6% in Cinebench R15 multi-core. The i9-13900H is the better choice for demanding workloads like video editing, 3D rendering, software compilation, and any task that can utilize its higher thread count and clock speeds.

The Intel Core Ultra 5 135H, while not winning any direct benchmarks, still holds its own in the broader market. Its average benchmark score of 29093 is actually slightly higher than the i9-13900H’s 28886, and both CPUs sit at the 81st percentile. This suggests the Ultra 5 is a capable chip that competes well against other processors in its class, even if it loses to this specific i9 part. Its lower TDP of 28W, compared to the i9-13900H’s 45W, also makes it a more power-efficient option for thin-and-light laptops where battery life and thermals are critical.

For a user who needs maximum performance in a mobile workstation or a high-end gaming laptop, the Core i9-13900H is the clear pick. The benchmark data shows it is consistently 15% to 35% faster in multi-threaded tasks and 6% to 13% faster in single-threaded tasks. For a user who prioritizes efficiency and is willing to sacrifice performance for a more balanced system, the Core Ultra 5 135H is a reasonable choice, but the performance trade-off is significant and must be weighed against the power savings.

Specification Differences

The two processors differ in several key specifications. The Intel Core i9-13900H features 14 cores and 20 threads, while the Intel Core Ultra 5 135H also has 14 cores but only 18 threads. The i9-13900H has a higher boost clock at 5.40 GHz versus 4.60 GHz for the Ultra 5, but the Ultra 5 has a higher base clock at 3.60 GHz versus 2.60 GHz for the i9-13900H. The thermal design power (TDP) is another major difference: the i9-13900H is rated at 45W, while the Ultra 5 is rated at 28W.

The two CPUs also use different sockets. The Core Ultra 5 135H uses Intel BGA 2049, while the Core i9-13900H uses Intel BGA 1744. Memory support differs as well; the Ultra 5 supports DDR5, while the i9-13900H supports both DDR4 and DDR5. The memory bandwidth is listed as 89.6 GB/s for the Ultra 5, but is not specified for the i9-13900H. The launch MSRP for the Core Ultra 5 135H is $342, and the launch MSRP for the Core i9-13900H is $617.

Architecture Differences

The architectural differences are fundamental. The Intel Core Ultra 5 135H is built on Meteor Lake architecture, fabricated on Intel’s 7 nm process node. The Intel Core i9-13900H uses Raptor Lake architecture, specifically Raptor Lake-H, and is fabricated on Intel’s 10 nm process node. The i9-13900H also has a larger die size at 257 mm², while the die size for the Ultra 5 is not listed.

Cache layouts also differ. The Core Ultra 5 135H has 112 KB of L1 cache per core and 2 MB of L2 cache per core, with 18 MB of shared L3 cache. The Core i9-13900H has 80 KB of L1 cache per core and 2 MB of L2 cache per core, but a larger 24 MB of shared L3 cache. Both processors feature integrated graphics, but they are different: the Ultra 5 has Arc Xe-LPG 96EU, while the i9-13900H has Iris Xe Graphics 96EU. Both use the same PCIe configuration (Gen 5, 8 Lanes, CPU only) and lack ECC memory support. The release dates also differ, with the i9-13900H released on 2023-01-03 and the Ultra 5 released on 2023-12-13.

Where Each One Wins

Given the benchmark results, the use-case split is stark. The Intel Core i9-13900H wins in every scenario where performance is the primary metric. It is the better processor for multi-threaded productivity applications like 3D rendering, video encoding, and batch photo processing, where its 32% to 35.6% Cinebench multi-core advantages translate directly into faster completion times. It also wins in single-threaded performance, making it better for gaming, general application responsiveness, and tasks that rely on a single core. The i9-13900H’s higher boost clock of 5.40 GHz and larger 24 MB L3 cache are the likely contributors to its consistent wins.

The Intel Core Ultra 5 135H does not win in any performance benchmark, but it has a clear advantage in power efficiency. Its 28W TDP is significantly lower than the i9-13900H’s 45W, which makes it more suitable for ultraportable laptops where battery life is paramount. The Ultra 5’s higher base clock of 3.60 GHz may also offer better sustained performance in thermally constrained chassis that cannot maintain the i9-13900H’s boost clocks. Furthermore, its lower launch MSRP of $342 versus $617 indicates a different market positioning, though pricing is not a performance metric. For a user who needs a processor for light productivity, web browsing, and media consumption in a thin-and-light device, the Ultra 5’s efficiency profile is its primary selling point.