INTEL

Intel Core i7-8665U

Intel processor specifications and benchmark scores

4
Cores
8
Threads
4.8
GHz Boost
15W
TDP
🖥️Integrated GPU

Intel Core i7-8665U Specifications

⚙️

Core i7-8665U Core Configuration

Processing cores and threading

The Intel Core i7-8665U 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
⏱️

i7-8665U Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i7-8665U 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 i7-8665U by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
1900 GHz
Boost Clock
4.8 GHz
All-Core Turbo
up to 4.2 GHz
Multiplier
19x
💾

Intel's Core i7-8665U Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i7-8665U 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 i7-8665U'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
8 MB (shared)
🏗️

Whiskey Lake Architecture & Process

Manufacturing and design details

The Intel Core i7-8665U 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 i7-8665U incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Whiskey Lake
Codename
Whiskey Lake-U
Process Node
14 nm
Foundry
Intel
Generation
Core i7 (Whiskey Lake)
🔢

Whiskey Lake Instruction Set Features

Supported CPU instructions and extensions

The Core i7-8665U 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
🔌

i7-8665U Power & Thermal

TDP and power specifications

The Intel Core i7-8665U has a TDP (Thermal Design Power) of 15W, 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
15W
Tj Max
100°C
Configurable TDP
10-25 W
🔧

Intel BGA 1528 Platform & Socket

Compatibility information

The Core i7-8665U uses the Intel BGA 1528 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 1528
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-BGA14F
DDR5

Intel BGA 1528 Memory Support

RAM compatibility and speeds

Memory support specifications for the i7-8665U 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 i7-8665U 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
DDR3, DDR4
Memory Bus
Dual-channel
Memory Bandwidth
38.4 GB/s
🖥️

Intel's Core i7-8665U Integrated Graphics

Built-in GPU specifications

The Intel Core i7-8665U 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 i7-8665U 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
UHD Graphics 620
Graphics Model
UHD Graphics 620
📦

Core i7-8665U Product Information

Release and pricing details

The Intel Core i7-8665U 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 i7-8665U by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Oct 2018
Launch Price
$409
Market
Mobile
Status
End-of-life
Part Number
SRF9W

Core i7-8665U 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 i7-8665U performs in parallel rendering workloads like video production and 3D animation. Higher scores mean faster render times in professional applications.

cinebench_cinebench_r15_multicore #1081 of 1788
530
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 i7-8665U 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 #1082 of 1245
74
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 i7-8665U.

cinebench_cinebench_r20_multicore #1080 of 1788
2,210
4%
Max: 62,412
Compare with other CPUs

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 i7-8665U.

cinebench_cinebench_r20_singlecore #1079 of 1784
312
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 i7-8665U after thermal limits kick in.

cinebench_cinebench_r23_multicore #1080 of 1788
5,263
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 i7-8665U maintains boost clocks under continuous load.

cinebench_cinebench_r23_singlecore #1079 of 1788
743
4%
Max: 20,979

About Intel Core i7-8665U

Have you ever dissected the underpinnings of a mobile powerhouse like the Intel Core i7-8665U, wondering how its Whiskey Lake architecture balances portability with punch? Built on Intel's 14nm process, this quad-core chip with hyper-threading support for eight threads draws from the refined Coffee Lake lineage, incorporating enhancements in power gating and branch prediction to tackle modern multitasking. But does that 14nm node still deliver in an era of aggressive node shrinks, especially when paired with an 8MB shared L3 cache that acts as a smart reservoir for frequently accessed data? Delving deeper, the i7-8665U's L1 cache per core 32KB for instructions and 32KB for data pairs with a 256KB L2 cache per core, creating a hierarchy that prioritizes quick hits for latency-sensitive operations. Isn't it intriguing how this setup minimizes stalls in instruction pipelines, though enthusiasts might question if the shared L3 could bottleneck under extreme multi-threaded scrutiny? Overall, the architecture shines in its evolutionary tweaks, but does it truly future-proof laptops against rising software demands? What makes the performance frequencies of Intel's i7-8665U processor tick in real-world scenarios, especially with a base clock of 1.9GHz that can surge to a 4.8GHz turbo? This dynamic scaling isn't just hype; benchmarks like Cinebench R23 multicore at 5,263 points reveal solid throughput for rendering tasks, while the single-core score of 743 points suggests respectable burst speeds for everyday apps. Yet, can that turbo really sustain under prolonged loads without thermal throttling in slim chassis? The R20 multicore result of 2,210 points echoes this capability for older workflows, and the R15's 530 points hark back to its era's standards, prompting questions about longevity in benchmark evolution. Single-core R20 at 312 points further underscores efficient IPC gains from Whiskey Lake's optimizations. So, does this frequency profile make the i7-8665U a sleeper hit for balanced computing, or does it lag behind newer architectures in raw velocity? In an age of battery-conscious designs, how does the i7-8665U's 15W TDP stack up for energy efficiency, particularly when juggling its cache layers and clock speeds? This low-power envelope allows for extended runtime in ultrabooks, but does it compromise on peak performance when the L3 cache feeds hungry threads? Ideal workloads lean toward productivity suites, light content creation, and multitasking think Office apps, photo editing, or even casual video encoding where the chip's efficiency prevents excessive drain. Benchmarks indicate it handles these without excessive heat, yet power users might probe if 15W truly suffices for sustained multicore bursts like Cinebench runs. For developers or remote workers, isn't this efficiency a boon for all-day portability? Ultimately, the i7-8665U excels in scenarios demanding reliability over raw grunt, raising the question: in a power-hungry world, does its conservative TDP still define mobile excellence?

The AMD Equivalent of Core i7-8665U

Looking for a similar processor from AMD? The AMD Ryzen 7 PRO 2700 offers comparable performance and features in the AMD lineup.

AMD Ryzen 7 PRO 2700

AMD • 8 Cores

View Specs Compare

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