When choosing a processor (CPU) for your laptop, two standout options are the Intel Core Ultra 7 155H and the Intel Core Ultra 7 165U. Both belong to Intel's Ultra 7 family, are built on the Meteor Lake core architecture, and are designed to deliver high performance with efficient power use. Each chip has its own strengths, though, so it's important to compare them and pick the one that fits how you actually use your laptop.
Overview of the Intel Core Ultra 7 155H and Intel Core Ultra 7 165U
The Intel Core Ultra 7 155H is a 16-core, 32-thread CPU with a base clock of 1.4 GHz and a Turbo clock of up to 4.8 GHz. It is built on a 7 nm manufacturing process and has a maximum power draw of 65W. It also comes with 24MB of L3 cache and supports LPDDR5-7467, LPDDR5x-7467 and DDR5-5600 memory.
On the other side, the Intel Core Ultra 7 165U is a 12-core, 24-thread CPU with a base clock of 1.7 GHz and a Turbo clock of up to 4.9 GHz. It uses the same 7 nm process and has a maximum power draw of 57W. It is equipped with 12MB of L3 cache and supports the same memory types as the 155H.
The main differences between the two chips are core count, power draw and L3 cache size. In addition, the Intel Core Ultra 7 155H has the more powerful Arc Graphics, with 8 cores compared with 4 on the Intel Core Ultra 7 165U.
Performance Comparison: Intel Core Ultra 7 155H vs. Intel Core Ultra 7 165U
To compare the two CPUs, we can look at standard benchmark results such as Cinebench R23, Geekbench 6 and Passmark.
Single-Core and Multi-Core Performance
In Cinebench R23, the Intel Core Ultra 7 155H scores 1733 in single-core, 2% higher than the Intel Core Ultra 7 165U (1694 points). In multi-core, however, the Intel Core Ultra 7 155H pulls well ahead with 13144 points, as much as 30% higher than the 165U (10103 points).
Similarly, in Geekbench 6 the two CPUs post fairly similar single-core scores (2386 vs. 2384), but in multi-core the Intel Core Ultra 7 155H again comes out ahead with 12518 points, 28% higher than the 165U (9763 points).
Passmark results also show a significant gap in multi-core performance, with the Intel Core Ultra 7 155H reaching 24877 points, 48% higher than the 165U (16756 points). In single-core, however, the two CPUs are nearly even (3609 vs. 3556 points).
Graphics Performance
In the Blender test, the Intel Core Ultra 7 155H shows the strength of its 8-core Arc Graphics, finishing the task in just 265 seconds, up to 115% faster than the 165U (123 seconds).
Based on these results, the Intel Core Ultra 7 155H clearly delivers stronger multi-core and graphics performance than the Intel Core Ultra 7 165U. In single-core performance, however, there is no significant difference between the two.
Power Consumption and Operating Temperature
Besides performance, power consumption and operating temperature are also important criteria when choosing a laptop CPU.
Power Consumption
The Intel Core Ultra 7 165U has a maximum power draw of just 57W, noticeably lower than the 65W of the Intel Core Ultra 7 155H. This shows that the 165U is more power efficient, making it a better fit for mobile use and for sleek, portable laptops.
Operating Temperature
Both CPUs have a maximum operating temperature of 110°C. However, because the 155H draws more power, thermal management matters more, and it calls for a more effective cooling system.
Technology and Upgradability
Beyond performance and power consumption, a CPU's features and upgradability are also worth considering.
Architecture and Technology
Both the Intel Core Ultra 7 155H and the 165U are based on Intel's latest Meteor Lake core architecture, built on a 7 nm manufacturing process. This means both CPUs benefit from the newest improvements in performance and power efficiency.
Memory and Connectivity
Both CPUs support LPDDR5-7467, LPDDR5x-7467 and DDR5-5600 memory, with up to 96GB of capacity. However, the Intel Core Ultra 7 155H has a larger L3 cache (24MB vs. 12MB) and supports PCIe 5.0 rather than the PCIe 4.0 found on the 165U, which allows faster connectivity.
Upgradability
Both CPUs use the same FCBGA-2049 socket, so future upgrade options are fairly similar. That said, with its stronger multi-core performance, the Intel Core Ultra 7 155H can be considered the better choice for tasks that need many processing threads.
Best Uses for Each CPU
Based on the characteristics and comparisons above, we can identify the applications that suit each CPU:
Intel Core Ultra 7 155H
- Tasks that demand high multi-core performance, such as video editing, 3D rendering and software development...
- Applications that make the most of integrated graphics, such as gaming, graphic design and AI/ML...
- Tasks that need many processing threads, such as servers and multitasking applications...
Intel Core Ultra 7 165U
- Mobile use and sleek laptops that need optimal power efficiency, such as thin-and-light laptops and ultrabooks...
- Single-threaded tasks that call for high clock speeds, such as word processing, web browsing and watching movies...
- Applications that don't require very high multi-core power but still need stable performance.
Overall: Which Is the Best Choice for You?
Comparing the Intel Core Ultra 7 155H and the Intel Core Ultra 7 165U, each CPU has its own pros and cons and suits different needs and uses. The Intel Core Ultra 7 155H is the stronger choice when you need multi-core processing power and top graphics performance, and it is especially well suited to professional workloads and laptops with high-performance designs.
The Intel Core Ultra 7 165U, meanwhile, is a better match for laptops that need optimal power efficiency, or for applications that don't demand much multi-core performance. Depending on your specific needs, weigh each CPU's characteristics and suitable uses carefully to make the best decision.
Source: Intel Core Ultra 7 165U Benchmark
Source: Intel Core Ultra 7 155H Benchmark: Specs & Performance
