TurboVS
Intel Core Ultra 7 265HX
Intel Core Ultra 9 275HX

Intel Core Ultra 7 265HX Intel Core Ultra 9 275HX

Overview

Welcome to our in-depth specification comparison between the Intel Core Ultra 7 265HX and the Intel Core Ultra 9 275HX — two high-performance laptop processors built on the same 3 nm architecture. While they share a strong common foundation, key battlegrounds such as core count and thread performance, cache size, and benchmark scores set them apart. Read on to find out which chip best matches your workload.

Common Features

  • ✓ Both are laptop-type processors.
  • ✓ Integrated graphics are available on both products.
  • ✓ Both have a Thermal Design Power (TDP) of 55W.
  • ✓ Both are built on a 3 nm semiconductor process.
  • ✓ Both support a maximum CPU temperature of 105 °C.
  • ✓ Both use PCIe version 5.
  • ✓ Both support 64-bit computing.
  • ✓ Both have an unlocked multiplier.
  • ✓ Both use big.LITTLE technology.
  • ✓ Both support Turbo Boost version 2.
  • ✓ The integrated GPU base clock speed is 300 MHz on both products.
  • ✓ The integrated GPU turbo clock speed is 1900 MHz on both products.
  • ✓ Both support DirectX 12.
  • ✓ Both support up to 4 displays.
  • ✓ Both support OpenGL version 4.5.
  • ✓ Both support OpenCL version 3.
  • ✓ Both support a maximum RAM speed of 6400 MHz.
  • ✓ Both use DDR5 memory.
  • ✓ Both feature 2 memory channels.
  • ✓ Both support a maximum memory amount of 192 GB.
  • ✓ Both support the same instruction sets: MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2.
  • ✓ NX bit support is present on both products.

Main Differences

  • • The CPU socket is BGA 2049 on Intel Core Ultra 7 265HX and BGA 2114 on Intel Core Ultra 9 275HX.
  • • CPU speed is 8 x 2.6 & 12 x 2.3 GHz on Intel Core Ultra 7 265HX and 8 x 2.7 & 16 x 2.1 GHz on Intel Core Ultra 9 275HX.
  • • CPU threads total 20 on Intel Core Ultra 7 265HX and 24 on Intel Core Ultra 9 275HX.
  • • Turbo clock speed reaches 5.3 GHz on Intel Core Ultra 7 265HX and 5.4 GHz on Intel Core Ultra 9 275HX.
  • • L2 cache is 36 MB on Intel Core Ultra 7 265HX and 40 MB on Intel Core Ultra 9 275HX.
  • • The clock multiplier is 26 on Intel Core Ultra 7 265HX and 27 on Intel Core Ultra 9 275HX.
  • • The PassMark multi-core result is 49826 on Intel Core Ultra 7 265HX and 56426 on Intel Core Ultra 9 275HX.
  • • The PassMark single-core result is 4531 on Intel Core Ultra 7 265HX and 4723 on Intel Core Ultra 9 275HX.
  • • ECC memory support is present on Intel Core Ultra 7 265HX but not available on Intel Core Ultra 9 275HX.
Specs Comparison
Intel Core Ultra 7 265HX

Intel Core Ultra 7 265HX

Intel Core Ultra 9 275HX

Intel Core Ultra 9 275HX

General info:
Type Laptop Laptop
CPU socket BGA 2049 BGA 2114
Has integrated graphics ✓ ✓
release date January 2025 January 2025
Thermal Design Power (TDP) 55W 55W
semiconductor size 3 nm 3 nm
CPU temperature 105 °C 105 °C
PCI Express (PCIe) version 5 5
Supports 64-bit ✓ ✓

At the foundational level, the Intel Core Ultra 7 265HX and Intel Core Ultra 9 275HX share a strikingly similar platform profile: both are laptop-class processors built on a 3 nm semiconductor process, operate under a 55W TDP, top out at a 105 °C thermal ceiling, support PCIe 5, include integrated graphics, and are fully 64-bit capable. For the end user, this means both chips sit in the same thermal and power envelope — laptops built around either processor will face similar cooling demands and battery trade-offs.

The one meaningful divergence in this group is the CPU socket: the Ultra 7 265HX uses a BGA 2049 socket, while the Ultra 9 275HX uses a BGA 2114 socket. BGA (Ball Grid Array) sockets are soldered directly to the motherboard, so neither chip is user-upgradeable — that is expected for laptop CPUs. However, the different socket specifications confirm these are not interchangeable between motherboards, meaning laptop designs are purpose-built for one or the other. The larger pin count on the 275HX's socket may accommodate additional signaling or power delivery requirements suited to the higher-tier chip.

In terms of general platform characteristics, these two processors are effectively tied — same process node, same TDP, same thermal limit, same PCIe generation. The socket difference is a design-level distinction rather than a user-facing advantage. Neither chip holds an edge here based solely on the general specs provided.

Performance:
CPU speed 8 x 2.6 & 12 x 2.3 GHz 8 x 2.7 & 16 x 2.1 GHz
CPU threads 20 threads 24 threads
turbo clock speed 5.3GHz 5.4GHz
Has an unlocked multiplier ✓ ✓
L2 cache 36 MB 40 MB
Uses big.LITTLE technology ✓ ✓
clock multiplier 26 27
Turbo Boost version 2 2

The Intel Core Ultra 7 265HX and Intel Core Ultra 9 275HX differ in several performance aspects. The Intel Core Ultra 7 265HX features a CPU speed of 8 cores running at 2.6 GHz and 12 cores running at 2.3 GHz, while the Intel Core Ultra 9 275HX has a slightly higher CPU speed with 8 cores at 2.7 GHz and 16 cores at 2.1 GHz. This shows the 275HX has more cores, which could potentially lead to better multitasking performance.

In terms of CPU threads, the Ultra 7 265HX has 20 threads, while the Ultra 9 275HX has 24 threads, indicating the 275HX can handle more simultaneous operations. Both processors have an unlocked multiplier, allowing for overclocking potential, and both use big.LITTLE technology, which optimizes performance by using different types of cores for various workloads.

When it comes to cache, the Ultra 7 265HX has an L2 cache of 36 MB, while the Ultra 9 275HX has a slightly larger 40 MB L2 cache. Additionally, the clock multiplier for the Ultra 7 265HX is set to 26, whereas the Ultra 9 275HX has a multiplier of 27. Both processors share the same Turbo Boost version (version 2) and similar turbo clock speeds, with the Ultra 7 265HX reaching 5.3 GHz and the Ultra 9 275HX reaching 5.4 GHz.

Benchmarks:
PassMark result 49826 56426
PassMark result (single) 4531 4723

The Intel Core Ultra 7 265HX and Intel Core Ultra 9 275HX show a clear difference in benchmark results. The Ultra 7 265HX has a total PassMark result of 49826, while the Ultra 9 275HX scores higher with 56426. This suggests that the Ultra 9 275HX performs better in multi-threaded benchmarks overall.

Looking at the single-thread performance, the Ultra 7 265HX has a PassMark result of 4531, while the Ultra 9 275HX has a slightly higher score of 4723. This difference indicates that the Ultra 9 275HX also offers a modest advantage in single-core tasks.

In both overall and single-thread benchmarks, the Intel Core Ultra 9 275HX outperforms the Ultra 7 265HX, reflecting its higher core count and processing power.

Integrated graphics:
GPU clock speed 300 MHz 300 MHz
GPU turbo 1900 MHz 1900 MHz
DirectX version DirectX 12 DirectX 12
supported displays 4 4
OpenGL version 4.5 4.5
OpenCL version 3 3

The Intel Core Ultra 7 265HX and Intel Core Ultra 9 275HX have identical integrated graphics specifications. Both processors feature a GPU clock speed of 300 MHz and a GPU turbo of 1900 MHz. They also support the same DirectX version, DirectX 12, and share the same OpenGL version, 4.5, as well as OpenCL version 3.

Additionally, both processors are capable of supporting up to 4 displays, offering the same level of display support for multi-monitor setups.

In terms of integrated graphics performance and capabilities, the two processors are effectively identical, with no differences in GPU specifications between the two models.

Memory:
RAM speed (max) 6400 MHz 6400 MHz
DDR memory version 5 5
memory channels 2 2
maximum memory amount 192GB 192GB
Supports ECC memory ✓ ✕

Both the Intel Core Ultra 7 265HX and Intel Core Ultra 9 275HX support the same maximum RAM speed of 6400 MHz, DDR5 memory version, and 2 memory channels. They also both allow for a maximum memory amount of 192 GB.

The key difference between the two models lies in their support for ECC (Error Correcting Code) memory. The Ultra 7 265HX supports ECC memory, while the Ultra 9 275HX does not.

In terms of memory specifications, the Ultra 7 265HX offers additional ECC memory support, which may be important for certain professional or high-reliability use cases, while the Ultra 9 275HX lacks this feature.

Features:
instruction sets MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2 MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, SSE 4.2
Has NX bit ✓ ✓

The Intel Core Ultra 7 265HX and Intel Core Ultra 9 275HX have identical features in terms of instruction sets. Both processors support MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2 instruction sets.

Additionally, both processors have the NX bit enabled, which helps with security by preventing the execution of certain types of malicious code.

In terms of features, there are no differences between the two processors—they both offer the same instruction set support and security features.

Comparison Summary & Verdict

Both the Intel Core Ultra 7 265HX and the Intel Core Ultra 9 275HX are compelling laptop processors that share the same 55W TDP, DDR5 memory support, PCIe 5 connectivity, and identical integrated graphics capabilities. However, the Intel Core Ultra 9 275HX pulls ahead with 24 threads versus 20, a larger 40 MB L2 cache, a higher 5.4 GHz turbo clock, and notably stronger benchmark results — 56426 versus 49826 in PassMark multi-core. On the other hand, the Intel Core Ultra 7 265HX stands out by offering ECC memory support, making it a more suitable choice for reliability-sensitive workloads. Choose the Ultra 9 275HX for raw, scalable performance; choose the Ultra 7 265HX when memory integrity and error correction are a priority.

Intel Core Ultra 7 265HX
Buy Intel Core Ultra 7 265HX if...

Buy the Intel Core Ultra 7 265HX if you need ECC memory support for reliability-critical or professional workloads where data integrity is a priority.

Intel Core Ultra 9 275HX
Buy Intel Core Ultra 9 275HX if...

Buy the Intel Core Ultra 9 275HX if you want maximum multi-threaded performance, with more CPU threads, a larger L2 cache, higher turbo speeds, and stronger benchmark results.