Intel Core Ultra 9 275HX Performance Test: The Most Powerful Mobile Processor

At the beginning of the year, Intel officially released the Core Ultra 200HX series processors, thus completing the layout of the Core Ultra 200 family. Among them, the Core Ultra 9 275HX, as the sub-flagship model of this generation, is used by many gaming laptops today. So what exactly is its actual performance? Is the performance satisfactory in all aspects? Let’s take a look.

The Intel Core Ultra 9 275HX processor is only 0.1GHz lower than the Ultra 9 285HX in specs. It adopts a 24-core and 24-thread design, that is, 8 performance cores + 16 energy efficiency cores, a turbo boost frequency of 5.4GHz, a 36MB L3 cache, a default TDP of 55W, and a maximum TDP of 160W.

FIRST, LET’S TAKE A LOOK AT CPU-Z AND CINEBENCH’S SINGLE-CORE AND MULTI-CORE TESTS. CPU-Z single-core score 867.2, multi-core score 18123.4, because the first generation Core Ultra processor did not launch a high-performance HX series, so it can only be compared with Intel 14th generation Core HX, Core i9-14900HX processor CPU-Z single-core score 895.6, multi-core score 14361, it can be seen that the Core Ultra 9 275HX is slightly behind the 14th generation Core in single-core performance, and it is 26% higher in multi-core performance.

CINEBENCH R23 single-core score is 2199, multi-core score is 39375; CINEBENCH 2024 single-core score of 135 and multi-core score of 1658, compared with the core i9-14900HX’s R23 single-core 2134, multi-core 33124 and 2024 single-core 128, multi-core 1831, the Core Ultra 9 275HX multi-core performance improvement is still relatively obvious.

LET’S TAKE A LOOK AT THE CINEBENCH R23 MULTI-CORE TEN-ROUND CONTINUOUS TEST AND THE ENERGY EFFICIENCY CURVE.

The highest score of R23 multi-core test for ten consecutive rounds was 39375, and the lowest score was 34616, and the performance began to remain relatively stable since the third round.

Multi-core performanceWe can also refer to the test of the 3DMark CPU Profile, and we can see that the single-thread score is 1309, and the maximum thread score is 17894, which is about 29% higher than the 14th generation Core i9-14900HX (the maximum thread score is 13902).

 Performance evaluation of theoretical applications

In terms of theoretical performance, we tested H.264 encoding, 7-Zip compression/decompression, V-Ray sample rate, and Blender sample rate, and let’s take a look at the Core Ultra 9 275HX.

First of all, in terms of H.264 encoding, the speed of encoding 2500 frames is 119.47fps, and the completion time is only 21 seconds, and the video encoding efficiency has been greatly upgraded, which is also the strength of Intel Core processors.

7-Zip compression and decompression test, the compression speed is 75009KB/s, and the decompression speed is 2072573KB/s, which is still quite fast, after all, it is a 24-core and 24-thread design.

In terms of rendering sampling rate, the first is the V-Ray Benchmark, with an overall sampling count of 34,794 vsamples in 1 minute test time, which is a lot higher than the 14th Gen Core i9-14900HX.

Blender benchmark monster, junkshop, and classroom have rendering sampling rates of 235.96, 146.66, and 108.89 Samples/min respectively, which is also a lot faster, but Blender rendering sampling is still faster than GPU, so the CPU score is only a reference, and the actual use still depends on the GPU to ensure efficiency.

 AI computing performance evaluation

The Intel Core Ultra 200HX processor also introduces the NPU compute unit and brings good computing efficiency in terms of AI computing power. With UL Procyon and Geekbench AI, let’s take a look at the Core Ultra 9 275HX’s AI performance.

The first is the CPU Integer, which is the CPU’s integer computing performance, with an overall score of 506, which is much higher than the 439 points of its own Core Ultra 9 285V. The NPU Float16 has a computing power score of 358 points, which is slightly lower than the Core Ultra 9 285V’s 366 points. In addition, compared to AMD Ryzen AI 9, the CPU and NPU computing power of the Core Ultra 9 275HX are much higher.

Geekbench AI mainly tests the single-precision, half-precision, and quantization performance of computing units. The Core Ultra 9 275HX’s CPU scored 7573, 7572, and 13190 points in all three tests, respectively. The NPU is 6983, 8032 and 12374 points respectively, and the single and half precision computing power of the CPU part is much higher than that of the Core Ultra 9 285V, and the quantization performance is slightly higher, and the single precision computing power of the NPU part is slightly higher, but the half-precision and quantization performance are not as good as the Core Ultra 9 285V.

 summary

Overall, as the sub-flagship model of the current mobile processor, the Core Ultra 9 275HX has a significant multi-core performance improvement, and even in the face of Ryzen AI MAX+395, AMD’s top-of-the-line processor, it has a certain advantage in multi-core performance.

However, in terms of single-core performance, it is basically on par with the 14th Gen Core HX series processors. In addition, it solves the problem of the 14th generation Core processor copying machine exceeding 100°C, which can maintain a relatively good stable state and the overall operation is more stable.