TurboVS
Intel Core Ultra 7 355 specifications and in-depth review

Intel Core Ultra 7 355

Manufacturer: Intel

The Intel Core Ultra 7 355 is a laptop processor built around a hybrid core architecture that balances efficiency and responsiveness across a range of computing workloads. It features big.LITTLE technology, combining four performance cores running at 2.3GHz with four efficiency cores at 1.7GHz, all under a 25W thermal design envelope suited to mobile platforms.

On the memory side, the Core Ultra 7 355 supports DDR5 RAM at up to 7467MHz across two channels, with a maximum capacity of 128GB. Its integrated graphics reach a turbo frequency of 2500MHz and are compatible with DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, while supporting up to four displays simultaneously. The processor also includes PCIe 5 connectivity and a broad instruction set covering AVX2, AES, FMA3, and SSE 4.2, among others.

Pros
  • Supports DDR5 memory at speeds up to 7467MHz across a dual-channel configuration, allowing for fast data throughput
  • Can address up to 128GB of RAM, offering substantial capacity for a laptop processor
  • The integrated graphics support up to four simultaneous displays, which is useful for multi-monitor setups
  • PCIe 5 connectivity enables high-bandwidth communication with compatible storage and peripheral devices
  • Includes hardware-accelerated AES encryption support as part of its instruction set, benefiting security-sensitive workloads
  • The NX bit provides hardware-level memory protection against certain types of code execution vulnerabilities
Cons
  • Limited to 8 threads across 8 cores, which may restrict throughput in heavily multi-threaded workloads
  • The 25W TDP, while suited to mobile platforms, may result in thermal constraints under sustained load given the 100°C maximum operating temperature
  • L3 cache of 12MB is modest relative to the number of cores, which could limit performance in cache-sensitive applications
  • No benchmark data is available to objectively assess real-world performance levels
Who is this for?

This processor is well-suited to users who need a capable laptop chip for productivity-oriented and moderately demanding workloads. The support for up to 128GB of DDR5 RAM makes it a reasonable fit for professionals working with large datasets, virtual machines, or memory-intensive applications. Its integrated graphics, with four-display output support and compatibility with DirectX 12 Ultimate and OpenCL 3, serve users who need light creative or compute tasks without a discrete GPU. The inclusion of hardware AES acceleration and the NX bit also makes it a practical choice for security-conscious business environments.

Who is this NOT for?

Users who rely on heavily multi-threaded workloads such as video rendering, 3D modeling, or large-scale compilation may find the 8-thread configuration limiting under sustained load. The 25W TDP, combined with a maximum operating temperature of 100°C, means the chip may throttle during extended high-demand tasks, making it less suitable for thermally constrained thin-and-light laptops pushed to their limits. Additionally, users requiring dedicated graphics performance for gaming or professional visual work will find the integrated GPU insufficient for those scenarios.

General info:

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

The Intel Core Ultra 7 355 is a laptop processor with a Thermal Design Power (TDP) of 25W, making it suited to mobile form factors where power efficiency matters. It includes integrated graphics and fully supports 64-bit computing. The processor has a maximum operating temperature of 100°C and features PCIe 5 connectivity for high-bandwidth device communication.

Performance:

CPU speed 4 x 2.3 & 4 x 1.7 GHz
CPU threads 8 threads
turbo clock speed 4.7GHz
L3 cache 12 MB
Uses big.LITTLE technology ✓
Turbo Boost version 2

The processor uses big.LITTLE technology to combine four cores running at 2.3GHz with four efficiency cores at 1.7GHz, totaling 8 threads across the two clusters. With Turbo Boost version 2, it can reach a turbo clock speed of 4.7GHz when conditions allow. A 12MB L3 cache supports faster data access across these cores, helping to reduce latency during varied workloads.

Benchmarks:

Integrated graphics:

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

The integrated graphics unit reaches a turbo frequency of 2500MHz and supports up to four displays simultaneously. It is compatible with DirectX 12 Ultimate, along with OpenGL 4.6 and OpenCL 3, covering a broad range of graphics rendering and compute workloads.

Memory:

RAM speed (max) 7467 MHz
DDR memory version 5
memory channels 2
maximum memory amount 128GB

The processor supports DDR5 memory running at speeds of up to 7467MHz across a dual-channel configuration. It can address a maximum of 128GB of RAM, providing ample headroom for memory-intensive tasks within a laptop platform.

Features:

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

The processor supports a broad set of instruction sets including AVX2, AES, FMA3, F16C, MMX, AVX, SSE 4.1, and SSE 4.2, enabling a wide range of computational tasks from floating-point operations to hardware-accelerated encryption. It also includes the NX bit, which provides hardware-level support for memory protection against certain classes of malicious code execution.

Final Verdict

The Intel Core Ultra 7 355 is a laptop processor that covers a practical range of mobile computing needs through its hybrid core design, DDR5 memory support, and a capable integrated graphics unit. Its combination of PCIe 5 connectivity and up to 128GB DDR5 RAM capacity gives it a solid foundation for productivity-focused and business-oriented laptop configurations. That said, its 8-thread ceiling and 25W thermal envelope do place natural limits on sustained heavy workloads, and users with demanding multi-threaded or graphics-intensive requirements will likely need to look beyond what this chip alone can offer. For the broad segment of users who prioritize memory bandwidth, display flexibility, and security-aware computing in a mobile form factor, the Core Ultra 7 355 represents a well-rounded and purposeful choice.