INTEL

Intel Core i5-8259U

Intel processor specifications and benchmark scores

4
Cores
8
Threads
3.8
GHz Boost
28W
TDP
🖥️Integrated GPU

Intel Core i5-8259U Specifications

⚙️

Core i5-8259U Core Configuration

Processing cores and threading

The Intel Core i5-8259U features 4 physical cores and 8 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
4
Threads
8
SMP CPUs
1
⏱️

i5-8259U Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i5-8259U benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core i5-8259U by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.3 GHz
Boost Clock
3.8 GHz
Multiplier
23x
💾

Intel's Core i5-8259U Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i5-8259U processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core i5-8259U's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
6 MB (shared)
L4 Cache
128 MB (shared)
🏗️

Coffee Lake Architecture & Process

Manufacturing and design details

The Intel Core i5-8259U is built on Intel's 14 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in i5-8259U incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Coffee Lake
Codename
Coffee Lake-U
Process Node
14 nm
Foundry
Intel
Die Size
126 mm²
Generation
Core i5 (Coffee Lake-U)
🔢

Coffee Lake Instruction Set Features

Supported CPU instructions and extensions

The Core i5-8259U by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
AVX
AVX2
FMA3
AES-NI
F16C
BMI1
BMI2
Intel 64
VT-x
VT-d
🔌

i5-8259U Power & Thermal

TDP and power specifications

The Intel Core i5-8259U has a TDP (Thermal Design Power) of 28W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
28W
Tj Max
100°C
🔧

Intel BGA 1526 Platform & Socket

Compatibility information

The Core i5-8259U uses the Intel BGA 1526 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel BGA 1526
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-BGA1528
DDR5

Intel BGA 1526 Memory Support

RAM compatibility and speeds

Memory support specifications for the i5-8259U define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core i5-8259U determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR4
Memory Bus
Dual-channel
Memory Bandwidth
38.4 GB/s
🖥️

Intel's Core i5-8259U Integrated Graphics

Built-in GPU specifications

The Intel Core i5-8259U includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the i5-8259U provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
Iris Pro Plus 655
Graphics Model
Iris Pro Plus 655
📦

Core i5-8259U Product Information

Release and pricing details

The Intel Core i5-8259U is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core i5-8259U by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Apr 2018
Launch Price
$320
Market
Mobile
Status
End-of-life
Part Number
SRCKBSRCUU

Core i5-8259U Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i5-8259U performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #959 of 1788
671
4%
Max: 14,978

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Core i5-8259U handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance.

cinebench_cinebench_r15_singlecore #960 of 1245
94
4%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core i5-8259U.

cinebench_cinebench_r20_multicore #959 of 1788
2,798
4%
Max: 62,412

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core i5-8259U.

cinebench_cinebench_r20_singlecore #959 of 1784
394
4%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core i5-8259U after thermal limits kick in.

cinebench_cinebench_r23_multicore #959 of 1788
6,664
4%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core i5-8259U maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #959 of 1788
940
4%
Max: 20,979

geekbench_multicoreSource

Geekbench multi-core tests Intel Core i5-8259U across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance.

geekbench_multicore #374 of 711
4,122
18%
Max: 22,515
Compare with other CPUs

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of Intel Core i5-8259U can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use.

geekbench_singlecore #377 of 711
1,240
36%
Max: 3,401
Compare with other CPUs

About Intel Core i5-8259U

  1. Balanced power use with a 28W TDP for good battery life and responsiveness in everyday tasks.
  2. Strong integrated Intel Iris Plus Graphics 655, which handles light creative work and 1080p gaming.
  3. Modern connectivity support, including integrated USB 3.1 and PCIe 3.0 lanes for fast storage and peripherals.

The Intel Core i5-8259U delivers solid practical performance for a mobile processor, with its 4 cores and 8 threads providing snappy responsiveness in daily computing, web browsing, and office applications. Its ability to turbo boost up to 3.80 GHz ensures that short, demanding tasks are handled quickly, making it suitable for students and professionals. The processor's integrated Iris Plus graphics offer a notable advantage over standard UHD graphics, enabling smooth video playback and casual gaming. This chip from Intel is designed for ultrabooks and thin-and-light laptops where a balance of power and efficiency is critical. Users can expect a smooth experience in multitasking scenarios, such as having multiple browser tabs open alongside communication apps. The Core i5-8259U stands as a capable choice for general-use laptops released during its time.

  1. Multicore benchmark scores, like over 6600 points in Cinebench R23, indicate competent performance for entry-level content creation.
  2. Efficient thermal design allows it to maintain performance in slim chassis, though sustained heavy loads may cause throttling.
  3. Limited to 6MB of L3 cache and BGA socket, restricting upgradeability and peak performance compared to higher-tier mobile CPUs.

For workstation tasks, the i5-8259U processor shows competent performance in light photo editing, coding, and other productivity software, thanks to its multi-threading capability. Benchmark results, such as a Geekbench multi-core score of 4122, place it as a viable option for entry-level professional work outside of heavy rendering or complex simulations. The price-to-performance ratio was reasonable at launch, offering a good feature set for its $320 price point compared to higher-end Core i7 models. However, its BGA socket means it is permanently soldered to the motherboard, eliminating any possibility of a future CPU upgrade. Compatibility is primarily with ultra-compact and portable systems, which may limit expansion options like additional RAM slots or powerful discrete graphics. This Intel CPU is best suited for users who need reliable performance in a portable form factor without the demands of a high-end workstation.

The AMD Equivalent of Core i5-8259U

Looking for a similar processor from AMD? The AMD Ryzen 5 2400GE offers comparable performance and features in the AMD lineup.

AMD Ryzen 5 2400GE

AMD • 4 Cores

View Specs Compare

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