Intel Core Ultra 5 245HX VS Intel Core Ultra 9 275HX

At the general platform level, the Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX are built on an identical foundation. Both are laptop-class processors sharing the same BGA 2114 socket, meaning they are soldered directly onto the motherboard — a standard design for high-performance mobile chips that prioritizes compactness over upgradeability. Both also carry integrated graphics, a 55W TDP, a 3 nm semiconductor process, a maximum junction temperature of 105 °C, PCIe 5.0 support, and full 64-bit compatibility.

The practical implications of these shared specs are significant. The 3 nm process node delivers strong power efficiency relative to performance, helping both chips operate within that 55W thermal envelope without sacrificing too much headroom. PCIe 5.0 ensures neither chip will bottleneck next-generation NVMe SSDs or discrete GPUs, keeping the platform future-ready. The 105 °C thermal ceiling is standard for this class and gives system designers reasonable latitude for cooling solutions.

Based strictly on the general info specs provided, these two processors are in a complete tie — every single attribute in this group is identical. No advantage can be awarded to either chip at this level; any meaningful differentiation between the Ultra 5 245HX and Ultra 9 275HX will only emerge from other spec groups such as core counts, clock speeds, or cache.

The Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX have distinct performance specifications, especially in terms of CPU speed and threading. The Ultra 5 245HX operates with a combination of 6 cores running at 3.1 GHz and 8 cores at 2.6 GHz, whereas the Ultra 9 275HX has 8 cores at 2.7 GHz and 16 cores at 2.1 GHz. This results in the Ultra 9 275HX offering a higher core count, with 24 threads compared to the Ultra 5 245HX's 14 threads, making the latter less suited for highly threaded tasks.

Both models have unlocked multipliers, allowing for overclocking. The Ultra 5 245HX has a clock multiplier of 31, while the Ultra 9 275HX has a slightly lower multiplier of 27. For turbo speeds, the Ultra 5 245HX can boost up to 5.1 GHz, while the Ultra 9 275HX can reach a slightly higher turbo clock speed of 5.4 GHz, offering a modest advantage in peak performance.

In terms of cache, the Ultra 5 245HX features an L2 cache of 26 MB, while the Ultra 9 275HX has a larger 40 MB L2 cache, which could contribute to better performance in tasks that rely on cache size. Both products utilize big.LITTLE technology and have the same version of Turbo Boost (version 2), ensuring efficient power management and performance scaling.

The Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX show different results in their PassMark benchmark scores. The Ultra 5 245HX has a total PassMark result of 40,059, while the Ultra 9 275HX scores 56,426. This indicates a significant performance gap, with the Ultra 9 275HX outperforming the Ultra 5 245HX in overall benchmark testing.

For single-threaded performance, the Ultra 5 245HX achieves a PassMark result of 4,530, while the Ultra 9 275HX is slightly ahead with a score of 4,723. Although the difference is smaller in the single-thread test, the Ultra 9 275HX still holds a small advantage in terms of raw single-thread performance.

In conclusion, both processors are capable performers, but the Intel Core Ultra 9 275HX leads in both overall and single-thread benchmark results, reflecting its greater core count and performance potential.

The Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX share identical specifications when it comes to integrated graphics. Both processors have a GPU clock speed of 300 MHz and a turbo clock speed of 1,900 MHz, ensuring similar performance in terms of graphics acceleration.

Both products also support DirectX 12, OpenGL 4.5, and OpenCL 3, meaning they offer compatibility with modern graphical and computational workloads. Additionally, each processor supports up to 4 displays, making them suitable for multi-monitor setups.

In conclusion, the integrated graphics specifications are identical between the two processors, with no differences in clock speeds, software support, or display capabilities.

Both the Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX feature the same memory specifications. Both processors support a maximum RAM speed of 6400 MHz and use DDR5 memory, ensuring high-speed memory performance. Additionally, both processors are equipped with two memory channels, which can enhance memory bandwidth and performance.

Both models also support a maximum memory amount of 192GB, providing ample capacity for demanding workloads. However, there is a notable difference in ECC memory support: the Ultra 5 245HX supports ECC (Error-Correcting Code) memory, which helps improve data integrity by detecting and correcting memory errors, while the Ultra 9 275HX does not support ECC memory.

Overall, the memory capabilities of both processors are similar, with the main difference being the support for ECC memory in the Ultra 5 245HX but not in the Ultra 9 275HX.

The Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX share similar feature sets when it comes to supported instruction sets and the NX bit. Both processors support a wide range of instruction sets, including F16C, MMX, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2, ensuring compatibility with modern software and workloads that utilize these advanced instructions.

The only difference in this category is that the Ultra 5 245HX has one additional instruction set: the NX bit, which helps enhance security by preventing the execution of code in certain areas of memory. However, the Ultra 9 275HX also has the NX bit, so both processors have this security feature enabled.

In summary, the two processors are virtually identical in their feature sets, with both supporting the same instruction sets and the important NX bit for security. The Ultra 5 245HX does have the slight distinction of having one extra mention of the NX bit in its spec sheet, but functionally, both support it.