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Intel Core Ultra X7 358H specifications and in-depth review

Intel Core Ultra X7 358H

Manufacturer: Intel

The Intel Core Ultra X7 358H is a laptop CPU offering solid performance with a focus on efficient multitasking and power management. It features a turbo clock speed of 4.8GHz for demanding tasks, and includes integrated Arc B390 graphics, which support DirectX 12 Ultimate.

With support for up to 96GB of DDR5 RAM running at a maximum speed of 9600 MHz, the processor is capable of handling memory-intensive applications. The CPU has a TDP of 25W and uses big.LITTLE technology to balance performance and power consumption across its 16 threads. It also supports PCIe 5.0 for fast data transfer speeds.

Pros
  • Supports up to 96GB of DDR5 RAM, providing ample memory capacity for demanding tasks.
  • Includes integrated Arc B390 graphics, offering good basic graphical performance for everyday use.
  • Utilizes PCIe 5.0 for faster data transfer speeds, beneficial for high-performance applications.
  • Supports Turbo Boost version 2, allowing the CPU to reach a peak clock speed of 4.8GHz for demanding workloads.
  • Has NX bit support, adding an extra layer of security to prevent certain types of attacks.
Cons
  • The maximum RAM speed is limited to 9600 MHz, which might not be as fast as other high-performance CPUs.
  • CPU temperature can reach up to 100°C under load, which could indicate potential thermal management concerns in some use cases.
  • Only supports two memory channels, which may limit memory bandwidth compared to higher-end configurations.
Who is this for?

The Intel Core Ultra X7 358H is suitable for users who require solid everyday performance and multitasking capabilities. With its support for up to 96GB of DDR5 RAM and integrated Arc B390 graphics, it is well-suited for general computing, light gaming, and productivity tasks. Additionally, the Turbo Boost version 2 and PCIe 5.0 support make it a good option for users needing occasional bursts of power for more demanding applications or workloads.

Who is this NOT for?

This CPU may not be suitable for users with high-end performance needs, such as gaming enthusiasts or professionals working with intensive 3D rendering or data-heavy simulations. Despite having decent integrated graphics, the Arc B390 is not as powerful as discrete GPUs, and the maximum RAM speed of 9600 MHz might limit performance in memory-intensive tasks. Additionally, the CPU's high operating temperature could be a concern for users who require consistent, cool operation under heavy loads.

General info:

Type Laptop
Has integrated graphics ✓
release date January 2026
Thermal Design Power (TDP) 25W
CPU temperature 100 °C
PCI Express (PCIe) version 5
Supports 64-bit ✓

The Intel Core Ultra X7 358H is a laptop CPU with a thermal design power (TDP) of 25W, making it energy efficient for portable systems. It supports PCIe 5.0 for faster data transfer and features integrated graphics for basic graphical tasks. The processor operates on a 64-bit architecture and can reach temperatures up to 100°C under load, which is typical for modern CPUs.

Performance:

CPU speed 4 x 1.9 & 8 x 1.5 & 4 x 1.5 GHz
CPU threads 16 threads
turbo clock speed 4.8GHz
L3 cache 18 MB
Uses big.LITTLE technology ✓
Turbo Boost version 2

The Intel Core Ultra X7 358H features a total of 16 CPU threads, utilizing a combination of four cores running at 1.9 GHz, eight cores at 1.5 GHz, and four additional cores at 1.5 GHz for efficient multitasking. The processor is equipped with 18 MB of L3 cache and supports Turbo Boost version 2, allowing it to reach a peak clock speed of 4.8 GHz for intensive tasks. Additionally, it utilizes big.LITTLE technology to optimize power consumption by dynamically adjusting performance based on workload demands.

Benchmarks:

Integrated graphics:

GPU name Arc B390
GPU turbo 2500 MHz
DirectX version DirectX 12 Ultimate
supported displays 4
OpenGL version 4.6
OpenCL version 3

The Intel Core Ultra X7 358H features integrated Arc B390 graphics, delivering solid visual performance with a turbo frequency of 2500 MHz. It supports DirectX 12 Ultimate and offers compatibility with OpenGL 4.6 and OpenCL 3, ensuring compatibility with a range of modern applications. Additionally, the GPU can drive up to four displays simultaneously, providing flexibility for multi-monitor setups.

Memory:

RAM speed (max) 9600 MHz
DDR memory version 5
memory channels 2
maximum memory amount 96GB

The Intel Core Ultra X7 358H supports up to 96GB of DDR5 RAM, offering impressive memory capacity for demanding tasks. It operates with two memory channels to enhance bandwidth, and the maximum supported RAM speed is 9600 MHz, ensuring fast data processing. This configuration provides an excellent foundation for high-performance computing needs.

Features:

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

The Intel Core Ultra X7 358H includes support for several instruction sets, including MMX, AVX2, and AES, which enhance its ability to perform complex calculations and improve encryption tasks. It also has the NX bit feature, adding an extra layer of security by preventing certain types of attacks, such as buffer overflow exploits.

Final Verdict

The Intel Core Ultra X7 358H is a capable laptop CPU designed for users who need reliable performance for general computing, multitasking, and light gaming. With features like up to 96GB of DDR5 RAM support and integrated Arc B390 graphics, it delivers solid overall performance for everyday tasks and moderate workloads. Its Turbo Boost capability and PCIe 5.0 support make it suitable for occasional demanding tasks, though it may not meet the needs of users requiring high-end gaming or professional content creation power. Overall, it strikes a good balance for users looking for efficient performance without the need for discrete graphics or extreme power.