Home > CPU Comparison > Core i7 8665U or Core i7 8650U: what's better?

Intel Core i7 8665U vs i7 8650U

27 out of 100
Intel Core i7 8665U
VS
28 out of 100
Intel Core i7 8650U
Intel Core i7 8665U
Intel Core i7 8650U

We compared two 4-core laptop CPUs: the 1.9 GHz Intel Core i7 8665U against the 1.9 GHz i7 8650U. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
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Key Differences

What are the key differences between 8650U and 8665U
Advantages of Intel Core i7 8665U
  • Supports up to 64 GB DDR4-2400 RAM
  • Newer - released 1 year and 8 months later
  • 14% higher Turbo Boost frequency (4.8 GHz vs 4.2 GHz)
Advantages of Intel Core i7 8650U
  • 10% faster in a single-core Geekbench v6 test - 1393 vs 1269 points

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i7 8665U
vs
Core i7 8650U

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Core i7 8665U
1269
Core i7 8650U +10%
1393
Geekbench 6 (Multi-Core)
File compression 337.7 MB/sec 304.7 MB/sec
Clang compilation 18.3 Klines/sec 18 Klines/sec
HTML 5 Browser 84.1 pages/sec 87.7 pages/sec
PDF Renderer 104.8 Mpixels/sec 112.1 Mpixels/sec
Text processing 108.6 pages/sec 116.4 pages/sec
Background blur 17.8 images/sec 18.6 images/sec
Photo processing 36.1 images/sec 40.5 images/sec
Ray tracing 4.18 Mpixels/sec 4.5 Mpixels/sec
Sources: GeekBench [1], [2] – 946 & 1080 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 22.9 GOps/sec 22 GOps/sec
Floating point math 13.5 GOps/sec 13.3 GOps/sec
Find prime numbers 22M Primes/sec 22M Primes/sec
Random string sorting 10.4M Strings/sec 10.5M Strings/sec
Data encryption 2.1 GBytes/sec 2.1 GBytes/sec
Data compression 76.7 MBytes/sec 78.7 MBytes/sec
Physics 461 Frames/sec 472 Frames/sec
Extended instructions 5B Matrices/sec 5B Matrices/sec
Sources: PassMark [3], [4] – 2565 & 5190 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i7 8665U
38.39
Core i7 8650U +19%
45.78

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 10.8 PPW 13.5 PPW
Geekbench 6 Multi / Watt 228.4 PPW 232.7 PPW
Passmark CPU Mark / Watt 411.5 PPW 412.5 PPW
Blender / Watt 2.56 PPW 3.05 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core i7 8665U
DateBenchmarkResult
📘 2025-03-09 (kokyica1)Cinebench 202456 / 162
Add View all (1)
Intel Core i7 8650U
No benchmark results yet
Add

Specifications

Full technical specification of Intel Core i7 8665U and i7 8650U

General

Vendor Intel Intel
Released April 16, 2019 August 21, 2017
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Whiskey Lake -
Model number i7-8665U i7-8650U
Integrated GPU UHD Graphics 620 UHD Graphics 620

CPU

Performance Cores
P-Cores 4 4
P-Threads 8 8
Base Frequency (P) 1.9 GHz 1.9 GHz
Turbo Boost Frequency (P) 4.8 GHz 4.2 GHz
Total
Total Cores 4 4
Total Threads 8 8
Bus Frequency - 100 MHz
Multiplier 19x 19x
Bus Bandwidth 4 GT/s 4 GT/s
L1 Cache 32K (per core) 64K (per core)
L2 Cache 256K (per core) 256K (per core)
L3 Cache 8MB (shared) 8MB (shared)
Unlocked Multiplier No No

Package

Fabrication Process 14 nm 14 nm
TDP (PL1) 15 W 15 W
Socket BGA-1528 BGA-1356
Peak Temperature 100°C 100°C

iGPU

Integrated Graphics Intel UHD Graphics 620 Intel UHD Graphics 620
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1150 MHz 1150 MHz
Shading Units 192 192
TMUs 24 24
ROPs 3 3
Execution Units 24 24
TGP 15 W 15 W
iGPU FLOPS
Core i7 8665U
0.4 TFLOPS
Core i7 8650U
0.4 TFLOPS
See: Intel UHD Graphics 620 benchmarks

Memory Support

Memory Types - DDR4-2400
- LPDDR3-2133		 - DDR4-2400
- LPDDR3-2133
Max. Memory Size 64 GB 32 GB
Memory Channels 2 2
Max. Memory Bandwidth 37.5 GB/s 37.5 GB/s
ECC Support No No

Misc

Official Site Intel Core i7 8665U official page Intel Core i7 8650U official page
PCI Express Version 3.0 3.0
PCI Express Lanes 16 12

Cast your vote

Choose between two processors
50 (72.5%)
19 (27.5%)
Total votes: 69

Competitors

1. Intel Core i7 8650U vs Intel Core i7 10610U
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Comments

So which CPU will you choose: Intel Core i7 8650U or i7 8665U?
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