Intel Core Ultra 5 235H VS Intel Core Ultra 7 255H

At the general platform level, the Intel Core Ultra 5 235H and Intel Core Ultra 7 255H are virtually identical twins. Both are laptop-class processors sharing the same BGA 2049 socket, the same 3 nm semiconductor process, a 28W TDP, a maximum junction temperature of 110 °C, PCIe 5.0 support, integrated graphics, and full 64-bit compatibility.

The practical implication of this shared foundation is significant: both chips will fit the same motherboard designs, operate within the same thermal and power envelopes, and deliver the same platform-level capabilities such as PCIe 5.0 bandwidth for storage and discrete GPU connectivity. A laptop built around either processor does not need to compromise on chassis size, cooling solution, or connectivity infrastructure.

Based strictly on the general info specs, these two processors are completely evenly matched — there is no differentiator in this category whatsoever. Any meaningful advantage one holds over the other will only emerge in performance-oriented spec groups such as core counts, clock speeds, or cache. For general platform considerations alone, neither chip has an edge.

The Intel Core Ultra 5 235H and Intel Core Ultra 7 255H have some noticeable differences in performance specs. For CPU speed, the Ultra 5 235H features a combination of 4 cores at 2.4 GHz and 8 cores at 1.8 GHz, while the Ultra 7 255H has 6 cores at 2.0 GHz and 8 cores at 1.5 GHz. This indicates the Ultra 5 235H has a higher base clock speed on its main cores. Both processors support a turbo clock speed of 5 GHz, meaning they can boost performance under load, but the Ultra 7 255H offers a slightly higher turbo clock speed of 5.1 GHz.

In terms of CPU threads, the Ultra 5 235H has 14 threads, whereas the Ultra 7 255H supports 16 threads, providing the latter with potentially better multi-threaded performance. Both processors use big.LITTLE technology, allowing them to efficiently manage workloads by using high-performance and power-efficient cores. However, the Ultra 5 235H has a clock multiplier of 24, compared to the Ultra 7 255H's 20, indicating a difference in how each processor's cores are scaled in terms of clock frequency.

Despite these differences, both processors share several similar features, such as the absence of an unlocked multiplier, which means neither can be overclocked. Overall, the Ultra 5 235H has a higher base clock speed, while the Ultra 7 255H offers more threads and a slightly higher turbo clock speed.

In the benchmark results, the Intel Core Ultra 5 235H and Intel Core Ultra 7 255H show some differences. The Ultra 5 235H has a PassMark result of 28,448, while the Ultra 7 255H achieves a higher result of 30,756. This indicates that the Ultra 7 255H performs better in multi-threaded workloads or overall system tasks. Both processors have very similar single-thread performance, with the Ultra 5 235H scoring 4,361 and the Ultra 7 255H scoring slightly higher at 4,373.

Although the overall PassMark results differ, the single-thread scores for both processors are very close, with a mere 12-point difference. This suggests that the two processors deliver almost identical performance in tasks that rely primarily on single-core speed. However, the Ultra 7 255H’s higher total PassMark score suggests it could be more capable in multi-threaded or demanding tasks.

Overall, while both processors offer strong performance, the Ultra 7 255H holds an edge in overall benchmark scores, while single-threaded performance is nearly identical between the two.

The integrated graphics for the Intel Core Ultra 5 235H and Intel Core Ultra 7 255H are identical in several key areas. Both processors feature a GPU turbo frequency of 2250 MHz, ensuring similar peak graphics performance. They also support DirectX 12 Ultimate, OpenGL version 4.6, and OpenCL version 3, meaning both are fully equipped to handle modern graphical tasks and applications that utilize these technologies. Additionally, both products support up to 4 displays, providing ample flexibility for multi-monitor setups.

Since all these specs are exactly the same for both the Ultra 5 235H and Ultra 7 255H, there are no differences in terms of integrated graphics capabilities. Users can expect equivalent performance and compatibility with graphical applications across both processors.

Overall, in the integrated graphics department, there is no distinction between the two processors based on the provided specifications.

The memory specifications for the Intel Core Ultra 5 235H and Intel Core Ultra 7 255H are identical. Both processors support a maximum RAM speed of 8400 MHz and utilize DDR5 memory, which provides fast data transfer rates. They each have two memory channels, enabling dual-channel memory configurations for improved performance. Additionally, both processors can support up to 128GB of memory, allowing for ample capacity in memory-intensive applications.

Neither processor supports ECC memory, which means they are not designed for error-correcting code memory, typically found in servers and workstations that require high data integrity.

Overall, the memory capabilities of both processors are the same, offering identical performance and capacity limits across all key memory specifications.

The Intel Core Ultra 5 235H and Intel Core Ultra 7 255H share identical features in terms of instruction sets, multithreading, and security. Both processors support the same set of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, which are essential for handling a wide range of computational tasks efficiently. Additionally, neither processor utilizes multithreading, which means they handle tasks with the base number of threads without any simultaneous multithreading (SMT) technology.

Both processors also include the NX (No eXecute) bit feature, providing a level of security by preventing certain types of attacks, such as buffer overflow attacks. This feature is common in modern processors and ensures better protection for the system's memory.

Overall, the Intel Core Ultra 5 235H and Intel Core Ultra 7 255H have identical features in this group, with no differences in their instruction sets, multithreading capabilities, or security features.