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Intel Core i5-1335U

Intel Core i5-1335U: A Balance Between Performance and Battery Life in 2025 Ultrabooks

March 2025

Architecture and Process Technology: A Hybrid Approach for Versatile Tasks

The Intel Core i5-1335U processor, released as part of the Raptor Lake-U line, retains a hybrid architecture while enhancing energy efficiency through optimizations in Intel 7 (10 nm Enhanced SuperFin). The chip combines two types of cores:

- P-Cores (Performance): 2 cores with Hyper-Threading (4 threads), base frequency of 1.8 GHz, maximum Turbo Boost frequency of up to 4.6 GHz.

- E-Cores (Efficient): 8 cores without multithreading (8 threads), frequency of 1.3–3.4 GHz.

The total number of threads is 12, and the L3 cache is increased to 12 MB. The integrated graphics Intel Iris Xe (96 EU) support 4K@120 Hz resolution, AV1 hardware acceleration, and HDMI 2.1. This enables external monitors to be connected without a discrete graphics card.

Key Architectural Features:

- Thread Director technology for optimal task distribution between P-Cores and E-Cores.

- Support for DDR5-5200 and LPDDR5x-6400 memory (up to 64 GB).

- Compatibility with Thunderbolt 4 and Wi-Fi 6E.

TDP 15 W: Energy Efficiency with No Compromises

The processor's nominal TDP is 15 W, but in turbo mode, power can temporarily reach 55 W. This is typical for ultrabooks with passive or compact active cooling. For example, in the Dell XPS 13 (2025), the chip consistently operates between 25–28 W under load, thanks to two fans.

Practical Implications of TDP:

- In office tasks (browser, Word), the processor consumes 5–8 W.

- During video rendering or code compilation — up to 35 W, but only for the first 2–3 minutes.

- In gaming (CS2 on low settings) — 12–15 W, focusing on the iGPU.

For comparison, the Core i7-1360P (28 W TDP) consumes 30–40% more power in similar scenarios.

Performance: From Office Tasks to Light Gaming

Office and Multimedia

- Geekbench 6: 1957 (Single-Core), 6115 (Multi-Core). This is 12% higher than the i5-1235U (Alder Lake).

- Real-World Tasks:

- Opening 30 tabs in Chrome + Zoom: No noticeable delays.

- Converting 4K video in HandBrake: 8–10 minutes for a 10-minute clip.

- Photoshop: Retouching photos with 10 layers — smooth operation.

Gaming

Iris Xe handles less demanding projects:

- CS2: 60–70 FPS (720p, low settings).

- Genshin Impact: 40–45 FPS (720p).

- Minecraft with shaders: 50–55 FPS (1080p).

Turbo Mode: In Cinebench R23 benchmarks, the chip scores 6890 points (maximum), but after 10 minutes, it drops to 5200 due to throttling, which is typical for thin laptops.

Use Cases: Who is the i5-1335U Suitable For?

1. Students and Office Workers — Document work, video conferencing, light presentation editing.

2. Digital Nomads — Battery life of up to 12 hours (in devices with a 60 Wh battery).

3. Casual Gamers — Games like Dota 2 or Stardew Valley.

4. Budget-Conscious Users — Laptops based on this CPU start at $700 (e.g., Acer Swift 3).

Not Suitable For:

- Professional videographers (better with i7 + RTX 4050).

- Streamers — insufficient power for simultaneous gaming and streaming.

Battery Life: How Intel Saves Charge

In web surfing, laptops with the i5-1335U achieve 10–12 hours (tested with PCMark 10 Modern Office). Technologies in play include:

- Intel Dynamic Tuning 2.0: Automatic frequency reduction during idle.

- Adaptix™ Sleep: Faster wake-up from sleep mode.

- Deep Learning Boost for optimizing background tasks.

Tip: Disable Turbo Boost in power settings to extend battery life by 15–20%.

Comparison with Competitors

AMD Ryzen 5 7540U (Zen 4, 4 nm)

- Pros: Better multithreading (8 Zen 4 cores), Radeon 740M is faster in games.

- Cons: Higher price ($800+), battery life 1–2 hours shorter.

Apple M3 (3 nm)

- Pros: 14 hours of operation, higher IPC.

- Cons: Limited compatibility with Windows software, no Thunderbolt support.

Intel Core i5-1235U

- 18% lower in multithreading performance, but $100–150 cheaper.

Pros and Cons of the i5-1335U

Strengths:

- Ideal for thin laptops.

- Support for Thunderbolt 4 and Wi-Fi 6E.

- Low temperatures, even under load.

Weaknesses:

- Limited performance in extended tasks.

- iGPU is weaker than Radeon 740M.

Recommendations for Choosing a Laptop

1. Device Type: Ultrabook (e.g., Lenovo Yoga Slim 7) or budget laptop (HP Pavilion Aero).

2. Display: IPS panel with 300 nits brightness and sRGB coverage of 95%+.

3. Memory: At least 16 GB LPDDR5.

4. Storage: PCIe 4.0 SSD from 512 GB.

5. Ports: 2x Thunderbolt 4 for future upgrade compatibility.

2025 Model Examples:

- Asus Zenbook 14: $750, 1.1 kg, 14" OLED.

- Microsoft Surface Laptop Go 3: $899, touch screen, 15 hours of battery life.

Final Conclusion

The Intel Core i5-1335U is an optimal choice for those seeking a lightweight laptop with a balance of price, battery life, and adequate power. It is suitable for:

- Work on the go.

- Studying and home use.

- Those not wishing to pay extra for excessive performance.

Key Benefits: Compatibility with the Windows ecosystem, support for modern communication standards, and a moderate price. If your budget is under $1000 and you're not chasing extreme power—this processor is your choice.

Basic

Label Name

Intel

Platform

Mobile

Launch Date

January 2023

Model Name

The Intel processor number is just one of several factors - along with processor brand, system configurations, and system-level benchmarks - to be considered when choosing the right processor for your computing needs.

i5-1335U

Code Name

Raptor Lake

CPU Specifications

Total Cores

Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).

Total Threads

Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.

Performance-cores

Efficient-cores

Max Turbo Frequency

Max Turbo Frequency is the maximum single-core frequency at which the processor is capable of operating using Intel® Turbo Boost Technology and, if present, Intel® Turbo Boost Max Technology 3.0 and Intel® Thermal Velocity Boost. Frequency is typically measured in gigahertz (GHz), or billion cycles per second.

4.60 GHz

Intel Hyper-Threading Technology

Intel® Hyper-Threading Technology (Intel® HT Technology) delivers two processing threads per physical core. Highly threaded applications can get more work done in parallel, completing tasks sooner.

Yes

L3 Cache

12 MB

CPU Socket

The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.

FCBGA1744

Technology

Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.

Intel 7

TDP

15 W

Processor Base Power

The time-averaged power dissipation that the processor is validated to not exceed during manufacturing while executing an Intel-specified high complexity workload at Base Frequency and at the junction temperature as specified in the Datasheet for the SKU segment and configuration.

15 W

Maximum Turbo Power

The maximum sustained (>1s) power dissipation of the processor as limited by current and/or temperature controls. Instantaneous power may exceed Maximum Turbo Power for short durations (<=10ms). Note: Maximum Turbo Power is configurable by system vendor and can be system specific.

55 W

Minimum Assured Power

12 W

Max. Operating Temperature

Junction Temperature is the maximum temperature allowed at the processor die.

100°C

Number of PCI Express Lanes

A PCI Express (PCIe) lane consists of two differential signaling pairs, one for receiving data, one for transmitting data, and is the basic unit of the PCIe bus. Max # of PCI Express Lanes is the total number of supported lanes.

Instruction Set

The instruction set is a hard program stored inside the CPU that guides and optimizes CPU operations. With these instruction sets, the CPU can run more efficiently. There are many manufacturers that design CPUs, which results in different instruction sets, such as the 8086 instruction set for the Intel camp and the RISC instruction set for the ARM camp. x86, ARM v8, and MIPS are all codes for instruction sets. Instruction sets can be extended; for example, x86 added 64-bit support to create x86-64. Manufacturers developing CPUs that are compatible with a certain instruction set need authorization from the instruction set patent holder. A typical example is Intel authorizing AMD, enabling the latter to develop CPUs compatible with the x86 instruction set.

64-bit

Microprocessor PCIe Revision

Gen 4

Memory Specifications

Memory Type

Intel® processors come in four different types: Single Channel, Dual Channel, Triple Channel, and Flex Mode. Maximum supported memory speed may be lower when populating multiple DIMMs per channel on products that support multiple memory channels.

Up to DDR5 5200 MT/s Up to DDR4 3200 MT/s Up to LPDDR5/x 6400 MT/s Up to LPDDR4x 4267 MT/s

Max Memory Size

Max memory size refers to the maximum memory capacity supported by the processor.

96 GB

Memory Channels

The number of memory channels refers to the bandwidth operation for real world application.

ECC Memory Supported

ECC Memory Supported indicates processor support for Error-Correcting Code memory. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Note that ECC memory support requires both processor and chipset support.

GPU Specifications

Integrated Graphics Model

An integrated GPU refers to the graphics core that is integrated into the CPU processor. Leveraging the processor's powerful computational capabilities and intelligent power efficiency management, it delivers outstanding graphics performance and a smooth application experience at a lower power consumption.

Intel® Iris® Xe Graphics eligible

Graphics Frequency

Graphics max dynamic frequency refers to the maximum opportunistic graphics render clock frequency (in MHz) that can be supported using Intel® HD Graphics with Dynamic Frequency feature.

1.25 GHz

DirectX Support

DirectX* Support indicates support for a specific version of Microsoft’s collection of APIs (Application Programming Interfaces) for handling multimedia compute tasks.

12.1

Execution Units

The Execution Unit is the foundational building block of Intel’s graphics architecture. Execution Units are compute processors optimized for simultaneous Multi-Threading for high throughput compute power.

Max Resolution (HDMI)

Max Resolution (HDMI) is the maximum resolution supported by the processor via the HDMI interface (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your system.

4096 x 2304 @ 60Hz

Max Resolution (DP)

Max Resolution (DP) is the maximum resolution supported by the processor via the DP interface (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your system.

7680 x 4320 @ 60Hz

Max Resolution (eDP - Integrated Flat Panel)

Max Resolution (Integrated Flat Panel) is the maximum resolution supported by the processor for a device with an integrated flat panel (24bits per pixel & 60Hz). System or device display resolution is dependent on multiple system design factors; actual resolution may be lower on your device.

4096 x 2304 @ 120Hz

Number of Displays Supported

Graphics Output

Graphics Output defines the interfaces available to communicate with display devices.

eDP 1.4b | DP 1.4a | HDMI 2.1

Miscellaneous

Intel Deep Learning Boost (Intel DL Boost) on CPU

A new set of embedded processor technologies designed to accelerate AI deep learning use cases. It extends Intel AVX-512 with a new Vector Neural Network Instruction (VNNI) that significantly increases deep learning inference performance over previous generations.

Yes

Intel Image Processing Unit

6.0

Intel Virtualization Technology (VT-x)

Intel® Virtualization Technology (VT-x) allows one hardware platform to function as multiple “virtual” platforms. It offers improved manageability by limiting downtime and maintaining productivity by isolating computing activities into separate partitions.

Yes

Intel Virtualization Technology for Directed I/O (VT-d)

Intel® Virtualization Technology for Directed I/O (VT-d) continues from the existing support for IA-32 (VT-x) and Itanium® processor (VT-i) virtualization adding new support for I/O-device virtualization. Intel VT-d can help end users improve security and reliability of the systems and also improve performance of I/O devices in virtualized environments.

Yes

Intel Standard Manageability (ISM)

Intel® Standard Manageability is the manageability solution for Intel vPro® Essentials platforms and is a subset of Intel® AMT with out-of-band management over Ethernet and Wi-Fi, but no KVM or new life cycle management features.

Intel® SSE4.1 | Intel® SSE4.2 | Intel® AVX2

Execute Disable Bit

Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.

Yes

Cache

CPU Cache is an area of fast memory located on the processor. Intel® Smart Cache refers to the architecture that allows all cores to dynamically share access to the last level cache.

12 MB Intel® Smart Cache

Intel AES New Instructions

Intel® AES New Instructions (Intel® AES-NI) are a set of instructions that enable fast and secure data encryption and decryption. AES-NI are valuable for a wide range of cryptographic applications, for example: applications that perform bulk encryption/decryption, authentication, random number generation, and authenticated encryption.

Yes

Intel High Definition Audio

Yes

Intel Volume Management Device (VMD)

Intel® Volume Management Device (VMD) provides a common, robust method of hot plug and LED management for NVMe-based solid state drives.

Yes

Intel Boot Guard

Intel® Device Protection Technology with Boot Guard helps protect the system’s pre-OS environment from viruses and malicious software attacks.

Yes

Intel Hardware Shield Eligibility

Yes

Intel VT-x with Extended Page Tables (EPT)

Intel® VT-x with Extended Page Tables (EPT), also known as Second Level Address Translation (SLAT), provides acceleration for memory intensive virtualized applications. Extended Page Tables in Intel® Virtualization Technology platforms reduces the memory and power overhead costs and increases battery life through hardware optimization of page table management.

Yes

Intel QuickAssist Software Acceleration

Yes

Intel Control-Flow Enforcement Technology

CET - Intel Control-flow Enforcement Technology (CET) helps protect against the misuse of legitimate code snippets through return-oriented programming (ROP) control-flow hijacking attacks.

Yes

Intel Flex Memory Access

Yes

Intel OS Guard

Yes

OpenGL Support

OpenGL (Open Graphics Library) is a cross-language, multi-platform API (Application Programming Interface) for rendering 2D and 3D vector graphics.

4.6

OpenCL Support

OpenCL (Open Computing Language) is a multi-platform API (Application Programming Interface) for heterogeneous parallel programming.

3.0

Intel Quick Sync Video

Intel® Quick Sync Video delivers fast conversion of video for portable media players, online sharing, and video editing and authoring.

Yes

Benchmarks

Geekbench 6

Single Core Score

1957

Geekbench 6

Multi Core Score

6115

Geekbench 5

Single Core Score

1479

Geekbench 5

Multi Core Score

5878

Passmark CPU

Single Core Score

3540

Passmark CPU

Multi Core Score

16296

Compared to Other CPU

Geekbench 6 Single Core

Ryzen 5 5600XT

2157 +10.2%

Core i7-11850HE

2050 +4.8%

Core i5-1335U

1957

Ryzen 7 7435H

1852 -5.4%

Core i7-1185G7

1733 -11.4%

Geekbench 6 Multi Core

Core i3-13100TE

6909 +13%

Core i9-10900T

6447 +5.4%

Core i5-1335U

6115

Ryzen 5 3500X

5711 -6.6%

Xeon E5-2640 v4

5408 -11.6%

Geekbench 5 Single Core

Core i3-12100

1620 +9.5%

Core i7-1270P

1557 +5.3%

Core i5-1335U

1479

Ryzen 5 5500GT

1417 -4.2%

Xeon Gold 5420+

1355 -8.4%

Geekbench 5 Multi Core

Xeon E5-1680 v4

6479 +10.2%

Ryzen 7 2700

6108 +3.9%

Core i5-1335U

5878

Core i7-1265U

5559 -5.4%

Core i7-10750H

5277 -10.2%

Passmark CPU Single Core

Core i5-14400F

3726 +5.3%

Ryzen 7 5800XT

3638 +2.8%

Core i5-1335U

3540

Ryzen 9 5950X

3467 -2.1%

Core i7-11700KF

3385 -4.4%

Passmark CPU Multi Core

Core Ultra 5 125U

17921 +10%

Core i9-10900TE

16914 +3.8%

Core i5-1335U

16296

Ryzen 5 PRO 4650GE

15601 -4.3%

Ryzen 5 5625U

14967 -8.2%