TurboVS
Intel Core Ultra 5 235HX
Intel Core Ultra 5 245HX

Intel Core Ultra 5 235HX Intel Core Ultra 5 245HX

Overview

Welcome to our in-depth specification face-off between the Intel Core Ultra 5 235HX and the Intel Core Ultra 5 245HX. Both are high-performance laptop processors sharing a strong foundation — including a 3 nm build, 55W TDP, DDR5 memory support, and integrated graphics — yet key distinctions in base clock speeds, GPU turbo frequency, and ECC memory support set them apart. Read on to discover which chip best fits your workload.

Common Features

  • ✓ Both products are laptop CPUs using the BGA 2114 socket.
  • ✓ Both products have a Thermal Design Power (TDP) of 55W.
  • ✓ Both products are built on a 3 nm semiconductor process.
  • ✓ Both products have a maximum CPU temperature of 105 °C.
  • ✓ Both products support PCI Express (PCIe) version 5.
  • ✓ Both products support 64-bit computing.
  • ✓ Integrated graphics are available on both products.
  • ✓ Both products have 14 CPU threads.
  • ✓ Both products reach a turbo clock speed of 5.1 GHz.
  • ✓ Both products have an unlocked multiplier.
  • ✓ Both products include 26 MB of L2 cache.
  • ✓ Both products use big.LITTLE technology.
  • ✓ Both products support Turbo Boost version 2.
  • ✓ Both products have an integrated GPU base clock speed of 300 MHz.
  • ✓ Both products support DirectX 12.
  • ✓ Both products support up to 4 displays.
  • ✓ Both products support OpenGL 4.5 and OpenCL 3.
  • ✓ Both products support DDR5 memory at up to 6400 MHz across 2 memory channels.
  • ✓ Both products support a maximum memory amount of 192 GB.
  • ✓ The NX bit security feature is present on both products.

Main Differences

  • • Base CPU speed is 6 x 2.9 GHz & 8 x 2.6 GHz on Intel Core Ultra 5 235HX and 6 x 3.1 GHz & 8 x 2.6 GHz on Intel Core Ultra 5 245HX.
  • • The clock multiplier is 29 on Intel Core Ultra 5 235HX and 31 on Intel Core Ultra 5 245HX.
  • • The integrated GPU turbo clock speed is 1800 MHz on Intel Core Ultra 5 235HX and 1900 MHz on Intel Core Ultra 5 245HX.
  • • ECC memory support is present on Intel Core Ultra 5 245HX but not available on Intel Core Ultra 5 235HX.
Specs Comparison
Intel Core Ultra 5 235HX

Intel Core Ultra 5 235HX

Intel Core Ultra 5 245HX

Intel Core Ultra 5 245HX

General info:
Type Laptop Laptop
CPU socket BGA 2114 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 5 235HX and Intel Core Ultra 5 245HX are built on identical architectural principles. Both are laptop-class processors sharing the same BGA 2114 socket, meaning neither is user-upgradeable — they are soldered directly to the motherboard. This is standard practice for mobile platforms and has no practical impact on day-to-day use, but it is worth noting for buyers considering long-term upgradability.

Every general platform specification is mirrored between the two: both carry a 55W TDP, are fabricated on a 3 nm process node, top out at a 105 °C junction temperature, support PCIe 5.0, include integrated graphics, and are fully 64-bit compatible. The shared 3 nm process ensures comparable power efficiency and transistor density, while PCIe 5.0 support future-proofs both chips for high-bandwidth storage and discrete GPU connectivity.

Based strictly on the general info specs provided, these two processors are in a complete tie. There is no differentiator in this category — thermal envelope, platform compatibility, manufacturing process, and feature support are identical. Buyers should look to other spec groups, such as core counts, clock speeds, or cache, to find meaningful distinctions between the 235HX and 245HX.

Performance:
CPU speed 6 x 2.9 & 8 x 2.6 GHz 6 x 3.1 & 8 x 2.6 GHz
CPU threads 14 threads 14 threads
turbo clock speed 5.1GHz 5.1GHz
Has an unlocked multiplier ✓ ✓
L2 cache 26 MB 26 MB
Uses big.LITTLE technology ✓ ✓
clock multiplier 29 31
Turbo Boost version 2 2

The Intel Core Ultra 5 235HX and Intel Core Ultra 5 245HX have several similarities in performance specs, but also some key differences. Both models have 14 threads, support big.LITTLE technology, and feature an L2 cache of 26 MB. They also both have an unlocked multiplier and Turbo Boost version 2, with a turbo clock speed of 5.1GHz.

Where they differ is in their CPU speed and clock multiplier. The 235HX has a CPU speed of 6 cores running at 2.9 GHz and 8 cores at 2.6 GHz, with a clock multiplier of 29. In comparison, the 245HX offers a slightly higher CPU speed with 6 cores running at 3.1 GHz and 8 cores at 2.6 GHz, and a clock multiplier of 31.

In summary, the 245HX offers a slight boost in base CPU speed and clock multiplier, but other performance-related features like turbo clock speed, cache, and thread count are identical between the two models.

Integrated graphics:
GPU clock speed 300 MHz 300 MHz
GPU turbo 1800 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 5 235HX and Intel Core Ultra 5 245HX share many similarities in their integrated graphics, but there are some differences in their GPU performance. Both models feature a GPU clock speed of 300 MHz, support DirectX 12, OpenGL version 4.5, and OpenCL version 3, and can drive up to 4 supported displays.

The main difference between the two lies in their GPU turbo speeds. The 235HX has a GPU turbo speed of 1800 MHz, while the 245HX offers a slightly higher turbo speed of 1900 MHz.

Overall, while the two processors are quite similar in terms of integrated graphics features, the 245HX offers a slight advantage with a higher GPU turbo speed.

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 ✕ ✓

The Intel Core Ultra 5 235HX and Intel Core Ultra 5 245HX share many key memory specifications, with both models supporting a maximum RAM speed of 6400 MHz, DDR memory version 5, and two memory channels. Additionally, both processors have the same maximum memory amount of 192GB.

The primary difference between the two products is that the 235HX does not support ECC (Error-Correcting Code) memory, while the 245HX does support it. ECC memory is typically used in systems that require higher data integrity and stability.

Overall, the 245HX offers a slight advantage in terms of memory support due to its ECC capability, while the 235HX matches in all other memory-related specifications.

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

The Intel Core Ultra 5 235HX and Intel Core Ultra 5 245HX both offer nearly identical feature sets. Both processors support the same set of instruction sets, including MMX, F16C, FMA3, AES, AVX, AVX2, SSE 4.1, and SSE 4.2. Additionally, both models have the NX bit feature enabled, which is used for enhancing security by preventing certain types of attacks.

There is one small difference between the two: the order of the listed instruction sets. In the 235HX, MMX and F16C are listed first, while in the 245HX, F16C comes before MMX. However, this difference is purely cosmetic and does not affect functionality.

In summary, the two processors are essentially identical in terms of supported features, with the only difference being the order in which the instruction sets are listed.

Comparison Summary & Verdict

After examining the full specification set, these two processors are more alike than different, but the gaps matter depending on your use case. The Intel Core Ultra 5 245HX holds a clear edge with its higher base clock speed of 6 x 3.1 GHz, a clock multiplier of 31, a faster GPU turbo of 1900 MHz, and — critically — ECC memory support, making it the stronger choice for professional, reliability-sensitive workloads such as data science or workstation tasks. The Intel Core Ultra 5 235HX, while slightly behind on raw clock figures and lacking ECC support, shares the same thread count, turbo peak, cache, and platform features, making it a highly capable option for mainstream power users who do not require error-correcting memory. Choose the 245HX for professional-grade reliability and a small but real performance uplift; choose the 235HX if those specific advantages fall outside your requirements.

Intel Core Ultra 5 235HX
Buy Intel Core Ultra 5 235HX if...

Choose the Intel Core Ultra 5 235HX if you are a mainstream power user who does not need ECC memory support and can benefit from a platform that still delivers strong multi-thread performance and a 5.1 GHz turbo peak.

Intel Core Ultra 5 245HX
Buy Intel Core Ultra 5 245HX if...

Choose the Intel Core Ultra 5 245HX if you need ECC memory support for reliability-critical workloads, or want the advantage of higher base clock speeds and a faster integrated GPU turbo frequency.