Home > CPU Comparison > Core i5 1235U or Core i3 N305: what's better?

Intel Core i5 1235U vs i3 N305

43 out of 100
Intel Core i5 1235U
VS
31 out of 100
Intel Core i3 N305
Intel Core i5 1235U
Intel Core i3 N305

We compared two laptop CPUs: the 1.3 GHz Intel Core i5 1235U with 10-cores against the 1.8 GHz i3 N305 with 8-cores. 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
DeviceFacts Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
πŸ”Œ Usage Scenario:

Key Differences

What are the key differences between N305 and 1235U
Advantages of Intel Core i5 1235U
  • Supports up to 64 GB DDR5-4800 RAM
  • More powerful Intel Iris Xe Graphics (80EU) integrated graphics: 1.5 vs 0.6 TFLOPS
  • Has 6 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • 56% faster in a single-core Geekbench v6 test - 2089 vs 1339 points
  • Has 2 more physical cores
  • Newer PCI Express version – 4.0
Advantages of Intel Core i3 N305
  • Newer - released 10 months later

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i5 1235U
vs
Core i3 N305

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench 2026 (Single) 400 -
Cinebench 2026 (Multi) 1046 -
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 i5 1235U +56%
2089
Core i3 N305
1339
Geekbench 6 (Multi-Core)
Core i5 1235U +21%
6362
Core i3 N305
5277
File compression 448.4 MB/sec 447.7 MB/sec
Clang compilation 24.1 Klines/sec 41.7 Klines/sec
HTML 5 Browser 156 pages/sec 123.7 pages/sec
PDF Renderer 128.9 Mpixels/sec 162.8 Mpixels/sec
Text processing 206.3 pages/sec 167.4 pages/sec
Background blur 34.7 images/sec 25 images/sec
Photo processing 54.1 images/sec 42.1 images/sec
Ray tracing 10.5 Mpixels/sec 7.03 Mpixels/sec
Sources: GeekBench [1], [2] – 545 & 789 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Core i5 1235U +49%
3043
Core i3 N305
2040
Passmark CPU (Multi-Core)
Core i5 1235U +32%
12404
Core i3 N305
9377
Integer math 47.4 GOps/sec 32.8 GOps/sec
Floating point math 37.4 GOps/sec 21.9 GOps/sec
Find prime numbers 534M Primes/sec 23M Primes/sec
Random string sorting 16.6M Strings/sec 13.8M Strings/sec
Data encryption 9 GBytes/sec 7.6 GBytes/sec
Data compression 143.4 MBytes/sec 111 MBytes/sec
Physics 649 Frames/sec 527 Frames/sec
Extended instructions 7.9B Matrices/sec 5.7B Matrices/sec
Sources: PassMark [3], [4] – 8840 & 1152 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i5 1235U +38%
80.33
Core i3 N305
58.26

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 24.5 PPW 16.1 PPW
Geekbench 6 Multi / Watt 424.1 PPW 351.8 PPW
Passmark CPU Mark / Watt 826.9 PPW 625.1 PPW
Blender / Watt 5.36 PPW 3.88 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 i5 1235U
DateBenchmarkResult
πŸ“˜ 2026-08-15 (zoetje)Cinebench 2026400 / 1046
πŸ“˜ 2026-08-09 (Jubayer)Cinebench 202486 / 393
πŸ“˜ 2026-05-06 (TASIN AMIR)Geekbench 6 CPU2191 / 7204
πŸ“˜ 2026-03-08 -> samueltailsGeekbench 6 CPU2147 / 6050
πŸ“˜ 2025-01-13 (sauron269)Cinebench 202498 / 368
Add View all (5)
Intel Core i3 N305
DateBenchmarkResult
πŸ“˜ 2025-10-13 (Aleman82)Geekbench 6 CPU1264 / 3791
πŸ“˜ 2025-10-08 (Kbzabeto82)Geekbench 6 CPU1264 / 3791
Add View all (2)

Specifications

Full technical specification of Intel Core i5 1235U and i3 N305

General

Vendor Intel Intel
Released February 23, 2022 January 3, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Alder Lake Alder Lake
Model number i5-1235U i3-N305
Integrated GPU Iris Xe Graphics (80EU) UHD Graphics (32EU)
Successor - Intel Core Ultra 5 225U -
Intel CPU rating (#199th place)

CPU

Performance Cores
P-Cores 2 -
P-Threads 4 -
Base Frequency (P) 1.3 GHz -
Turbo Boost Frequency (P) 4.4 GHz -
Efficient Cores
E-Cores 8 8
E-Threads 8 8
Base Frequency (E) 0.9 GHz 1.8 GHz
Turbo Boost Frequency (E) 3.3 GHz 3.9 GHz
Total
Total Cores 10 8
Total Threads 12 8
Bus Frequency 100 MHz 100 MHz
Multiplier 13x 18x
L1 Cache 80K (per core) 96K (per core)
L2 Cache 1280K (per core) 2MB (shared)
L3 Cache 12MB (shared) 6MB (shared)
Unlocked Multiplier No No

Package

Fabrication Process 10 nm 10 nm
TDP (PL1) 12-15 W (configurable) 9-15 W (configurable)
Max. Boost TDP (PL2) 55 W -
Socket BGA-1744 BGA-1744
Peak Temperature 100Β°C 105Β°C

iGPU

Integrated Graphics Intel Iris Xe Graphics (80EU) Intel UHD Graphics (32EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1200 MHz 1250 MHz
Shading Units 640 256
TMUs 40 16
ROPs 20 8
Execution Units 80 32
TGP 15 W 15 W
iGPU FLOPS
Core i5 1235U +150%
1.5 TFLOPS
Core i3 N305
0.6 TFLOPS
More info: UHD Graphics Xe (32 EU) compared to Iris Xe Graphics G7 (80EU)

Memory Support

Memory Types - DDR5-4800
- DDR4-3200
- LPDDR5-5200
- LPDDR4x-4267		 - DDR5-4800
- DDR4-3200
- LPDDR5-4800
Max. Memory Size 64 GB 16 GB
Memory Channels 2 1
ECC Support No No

Misc

Official Site Intel Core i5 1235U official page Intel Core i3 N305 official page
PCI Express Version 4.0 3.0
PCI Express Lanes 20 9

Cast your vote

Choose between two processors
46 (76.7%)
14 (23.3%)
Total votes: 60

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Comments

So which CPU will you choose: Intel Core i3 N305 or i5 1235U?
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