Intel Core Ultra 5 115U

Name: Intel Core Ultra 5 115U
Brand: Intel
SKU: 44593

Manufacturer: Intel

The Intel Core Ultra 5 115U is a laptop processor designed around efficiency, operating within a 15W thermal design power envelope that makes it suited to thin and light mobile systems. It uses big.LITTLE technology to split its core configuration across two performance cores running at 1.5GHz and four efficiency cores at 1GHz, with turbo frequencies reaching up to 4.2GHz. The chip supports 64-bit computing, multithreading across 10 threads, and includes the NX bit for hardware memory protection.

On the memory side, the Core Ultra 5 115U supports DDR5 at up to 5600MHz in a dual-channel configuration, with a maximum addressable capacity of 96GB, though ECC memory is not supported. Its integrated graphics unit boosts to 1800MHz, handles up to four displays, and is compatible with DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, backed by 384 shading units and 24 texture mapping units. Connectivity is handled through PCIe 4.0, and the processor carries a PassMark multi-threaded score of 12,771 alongside a single-core result of 3,421.

Pros

A 15W TDP makes this a genuinely low-power laptop processor, suited to thin and light designs where thermal headroom is limited
DDR5 memory support at up to 5600MHz with a 96GB maximum capacity gives the platform meaningful memory bandwidth and room to scale
The integrated GPU supports DirectX 12 Ultimate and can drive up to four displays simultaneously, adding flexibility for multi-monitor laptop use
The instruction set coverage — including AVX2, FMA3, and AES — allows optimized software to make use of vectorized and hardware-accelerated operations
The NX bit provides hardware-level memory protection, contributing to baseline security at the silicon level

Cons

With only 10 threads spread across 6 cores, the processor offers limited parallelism for heavily multithreaded workloads
The 10MB L3 cache is modest and may constrain throughput in workloads that depend on keeping large datasets close to the processor
The clock multiplier is locked, leaving no option to adjust frequencies beyond the factory-set turbo of 4.2GHz
ECC memory is not supported, ruling out use cases where memory reliability is a requirement
PCIe 4.0 connectivity, while functional, limits bandwidth compared to newer PCIe 5.0 implementations

Who is this for?

The Intel Core Ultra 5 115U is well-matched to users who prioritize efficiency in a mobile form factor, particularly those running everyday productivity workloads such as document editing, web browsing, and light multitasking within a thin and light laptop. Its 15W TDP keeps power consumption low, making it a practical fit for systems where battery life and thermal management matter. Users who need multi-display output without discrete graphics will also find it capable, given the integrated GPU's support for up to four simultaneous screens and DirectX 12 Ultimate compatibility.

Who is this NOT for?

Users who regularly engage in heavily multithreaded workloads — such as video encoding, 3D rendering, or large-scale data processing — will find the 10-thread configuration and 10MB L3 cache limiting under sustained load. The processor is also a poor match for those who need graphics-intensive applications, as the integrated GPU's 384 shading units and 1800MHz boost clock are not equipped for demanding gaming or GPU-accelerated creative tasks. Additionally, anyone requiring ECC memory support for data-integrity-sensitive workloads will need to look elsewhere, as this capability is absent.

General info:

Type	Laptop
Has integrated graphics	✓
Thermal Design Power (TDP)	15W
semiconductor size	7 nm
CPU temperature	110 °C
PCI Express (PCIe) version	4
Supports 64-bit	✓

This is a laptop processor with integrated graphics, built on a 7nm semiconductor process and rated at a 15W Thermal Design Power, positioning it firmly in the efficiency-oriented mobile segment. It supports 64-bit computing and connects via PCIe 4.0, with a maximum CPU temperature threshold of 110°C.

Performance:

CPU speed	2 x 1.5 & 4 x 1 GHz
CPU threads	10 threads
turbo clock speed	4.2GHz
Has an unlocked multiplier	✕
L3 cache	10 MB
Uses big.LITTLE technology	✓
clock multiplier	15

The processor uses big.LITTLE technology to pair two performance cores running at 1.5GHz with four efficiency cores at 1GHz, handling 10 threads in total. When sustained throughput is needed, the chip can boost up to a turbo clock speed of 4.2GHz, operating with a clock multiplier of 15. A 10MB L3 cache helps manage data closer to the cores, and the multiplier is locked, meaning clock speeds cannot be adjusted beyond the factory configuration.

Benchmarks:

PassMark result	12771
PassMark result (single)	3421

In benchmark testing, the processor recorded a PassMark multi-threaded score of 12,771, reflecting its capacity across parallel workloads, while its single-core PassMark result of 3,421 gives an indication of per-thread responsiveness for tasks that rely on sequential processing.

Integrated graphics:

GPU clock speed	300 MHz
GPU turbo	1800 MHz
DirectX version	DirectX 12 Ultimate
supported displays	4
OpenGL version	4.6
OpenCL version	3
texture mapping units (TMUs)	24
render output units (ROPs)	24
shading units	384

The integrated graphics unit runs at a base clock of 300MHz and boosts up to 1800MHz, with 384 shading units, 24 texture mapping units, and 24 render output units handling graphical workloads. It supports up to four simultaneous displays and is compatible with DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 3, covering both rendering and general-purpose compute tasks within its integrated scope.

Memory:

RAM speed (max)	5600 MHz
DDR memory version	5
memory channels	2
maximum memory amount	96GB
Supports ECC memory	✕

The processor supports DDR5 memory running at up to 5600MHz across two channels, with a maximum supported capacity of 96GB. The dual-channel configuration allows for balanced memory bandwidth in a mobile context. ECC memory is not supported, which is standard for a consumer-grade laptop processor of this type.

Features:

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

The processor supports multithreading and includes the NX bit for hardware-enforced memory protection. Its instruction set extensions cover MMX, SSE 4.1, SSE 4.2, AVX, AVX2, FMA3, F16C, and AES, enabling software that is optimized for these sets to take advantage of vectorized arithmetic, floating-point operations, and hardware-accelerated encryption.

Final Verdict

The Intel Core Ultra 5 115U is a focused efficiency-first laptop processor that delivers a coherent set of specifications for users whose workloads stay within the bounds of everyday mobile computing. Its 15W TDP paired with DDR5 memory support at up to 5600MHz reflects a deliberate balance between power consumption and memory bandwidth, making it a practical foundation for thin and light systems. The inclusion of DirectX 12 Ultimate in the integrated GPU and a broad instruction set round out its feature set for general use. Where it falls short — thread count, cache size, and graphics depth — are limitations inherent to its efficiency-oriented design rather than oversights. For users who need a capable, low-power laptop processor for productivity and light workloads, the Core Ultra 5 115U is a well-defined and purposeful choice.