PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Overview

The Core i7-8665UE is manufactured by Intel. It was released in 1 October 2018 (7 years ago). It is based on the Whiskey Lake-U (2018−2019) architecture. It features 4 cores and 8 threads. Base frequency is 1.7 GHz, with boost up to 4.4 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 4,852 points. Launch price was $409.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Core i7-8665UE is positioned at rank #1037 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core i7-8665UE

#1025

Atom x5-Z8300

MSRP: $20|Avg: N/A

2474%

#1026

Atom Z3735G

MSRP: $17|Avg: N/A

2438%

#1027

Core i5-480M

MSRP: $81|Avg: $77

2238%

#1028

Core i5-460M

MSRP: $80|Avg: $129

2228%

#1029

Core i5-2540M

MSRP: $266|Avg: $10

2207%

#1031

Core i5-450M

MSRP: $32|Avg: $31

2132%

#1032

Core i3-380M

MSRP: $49|Avg: $25

2044%

#1033

Core i5-430M

MSRP: N/A|Avg: $33

2040%

#1034

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1986%

#1037

Core i7-8665UE

MSRP: $409|Avg: $409

100%

#1038

Celeron T3300

MSRP: $86|Avg: $15

99%

#1039

Celeron Dual-Core T3300

MSRP: $86|Avg: $30

99%

#1042

Core i7-3612QE

MSRP: $426|Avg: $50

98%

#1043

A10-7300

MSRP: $150|Avg: $50

98%

#1044

Pentium Dual Core T4200

MSRP: $100|Avg: $10

97%

#1045

A6 Micro-6500T

MSRP: $100|Avg: $15

97%

#1046

Pentium N3520

MSRP: $100|Avg: $10

96%

#1047

E2-3800

MSRP: $100|Avg: $20

96%

#1048

Athlon X2 QL-66

MSRP: $150|Avg: $5

95%

#1049

Athlon II Neo K145

MSRP: $50|Avg: $10

95%

#1050

Celeron P4600

MSRP: $86|Avg: $15

95%

#1051

Core 2 Duo U7500

MSRP: $100|Avg: $10

94%

#1052

Pentium 987

MSRP: $134|Avg: $20

94%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Core i7-8665UE across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Core i7-8665UE specifications and capabilities.

⚡

Processing Power

The Core i7-8665UE is a 4-core / 8-thread processor based on the Whiskey Lake-U (2018−2019) architecture, manufactured on a 14 nm process node. It reaches a maximum boost clock of 4.4 GHz from a base frequency of 1.7 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 8 MB (total) of L3 cache, plus 256 kB (per core) of L2 cache and 64 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 4,852, placing it in the Entry Level performance tier as a Legacy generation product.

Specification	Core i7-8665UE
Cores / ThreadsPhysical/logical processing units	4C / 8T
Max Boost ClockPeak single-core speed under boost	4.4 GHz
Base ClockGuaranteed minimum operating frequency	1.7 GHz
ArchitectureCPU microarchitecture design	Whiskey Lake-U (2018−2019)
Process NodeFabrication technology — smaller = more efficient	14 nm
L3 CacheShared cache — reduces memory latency for all cores	8 MB (total)
L2 CachePer-core fast cache for frequently accessed data	256 kB (per core)
L1 CacheUltra-fast per-core cache	64 kB (per core)
64-bit Support	Yes
Windows 11 Compatible	Yes
PassMark ScoreOverall multi-threaded benchmark score	4,852

🧠

Memory & Platform

The Core i7-8665UE fits into the FCBGA1528 socket and supports PCIe 3.0 with 16 total PCIe lanes for expansion cards and storage. It supports DDR3, DDR4 memory at speeds up to DDR4-2400 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 64 GB across 2 channels (dual-channel doubles bandwidth). Integrated graphics: UHD Graphics 620 — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Specification	Core i7-8665UE
TypeDesktop or Laptop processor	Laptop
SocketMotherboard socket required	FCBGA1528
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 3.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	16
RAM TypeSupported memory standard	DDR3, DDR4
Max RAM SpeedMaximum officially supported memory frequency	DDR4-2400
Max RAM CapacityMaximum installable memory	64 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	2
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	UHD Graphics 620
Max CPUs in ConfigMulti-socket support for servers	1

🔧

Advanced Features

The Core i7-8665UE is primarily designed for Embedded. Virtualization: VT-x, VT-d — enables running virtual machines efficiently (important for development and server workloads).

Specification	Core i7-8665UE
Primary Use CaseIntended workload category	Embedded
OverclockingWhether CPU clock can be manually increased	🔒 Locked
AVX-512Advanced vector instructions for AI/ML workloads	❌ Not Supported
VirtualizationHardware-assisted virtualization technology	VT-x, VT-d

🌡️

Power & Cooling

The Core i7-8665UE has a rated TDP (Thermal Design Power) of 15 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Core i7-8665UE
TDPThermal Design Power — heat output under sustained workload	15 Watt

💰

Value Analysis

At an average price of $409, the Core i7-8665UE delivers 12 PassMark points per dollar. It currently holds Rank #1037 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #1895 out of all indexed processors.

Specification	Core i7-8665UE
MSRPManufacturer's Suggested Retail Price	$409
Avg Price (30d)Average market price over the last 30 days	$409
Launch PriceOriginal retail price at launch	$409
Cost-Benefit RankPosition in overall value ranking	#1037
Performance RankPosition in overall performance ranking	#1895
Release DateLaunch date	1 October 2018 (7 years ago)
Release Year	2018
DesignerArchitecture designer (e.g. Intel, AMD)	Intel
ManufacturerFabrication foundry (e.g. TSMC)	Intel