Home > CPU Comparison > Core i7 1355U or Core i3 1315U: what's better?

Intel Core i7 1355U vs i3 1315U

49 out of 100
Intel Core i7 1355U
VS
41 out of 100
Intel Core i3 1315U
Intel Core i7 1355U
Intel Core i3 1315U

We compared two laptop CPUs: the 1.7 GHz Intel Core i7 1355U with 10-cores against the 1.2 GHz i3 1315U with 6-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 1315U and 1355U
Advantages of Intel Core i7 1355U
  • Has 4 more physical cores
  • More powerful Intel Iris Xe Graphics (96EU) integrated graphics: 2 vs 1.3 TFLOPS
  • Has 2 MB larger L3 cache size
  • 24% faster in a single-core Geekbench v6 test - 2466 vs 1989 points
  • 11% higher Turbo Boost frequency (5 GHz vs 4.5 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i7 1355U
vs
Core i3 1315U

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 1355U +24%
2466
Core i3 1315U
1989
Geekbench 6 (Multi-Core)
Core i7 1355U +25%
7553
Core i3 1315U
6046
File compression 519.7 MB/sec 683.7 MB/sec
Clang compilation 58.7 Klines/sec 36.1 Klines/sec
HTML 5 Browser 159 pages/sec 145.5 pages/sec
PDF Renderer 219.7 Mpixels/sec 161.2 Mpixels/sec
Text processing 221.5 pages/sec 183.4 pages/sec
Background blur 33.4 images/sec 27.8 images/sec
Photo processing 64.2 images/sec 65.3 images/sec
Ray tracing 12.5 Mpixels/sec 7.89 Mpixels/sec
Sources: GeekBench [1], [2] – 653 & 772 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Core i7 1355U +26%
13850
Core i3 1315U
11019
Integer math 50.4 GOps/sec 36.8 GOps/sec
Floating point math 33.9 GOps/sec 26.2 GOps/sec
Find prime numbers 48M Primes/sec 39M Primes/sec
Random string sorting 17.2M Strings/sec 13.5M Strings/sec
Data encryption 9.6 GBytes/sec 7.3 GBytes/sec
Data compression 152.3 MBytes/sec 121 MBytes/sec
Physics 844 Frames/sec 673 Frames/sec
Extended instructions 8.5B Matrices/sec 7.1B Matrices/sec
Sources: PassMark [3], [4] – 3976 & 1207 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i7 1355U +74%
94.87
Core i3 1315U
54.55

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 33.9 PPW 16.4 PPW
Geekbench 6 Multi / Watt 503.5 PPW 403.1 PPW
Passmark CPU Mark / Watt 923.3 PPW 734.6 PPW
Blender / Watt 6.32 PPW 3.64 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 1355U
DateBenchmarkResult
πŸ“˜ 2026-04-28 (Linode)Geekbench 6 CPU2435 / 7355
Add View all (1)
Intel Core i3 1315U
DateBenchmarkResult
πŸ“˜ 2026-06-23 (Marnaut)Geekbench 6 CPU2425 / 6660
πŸ“˜ 2026-05-15 (Melkon)Geekbench 6 CPU2311 / 6598
πŸ“˜ 2025-02-10 (Cs.G.)Cinebench 202492 / 246
Add View all (3)

Specifications

Full technical specification of Intel Core i7 1355U and i3 1315U

General

Vendor Intel Intel
Released January 3, 2023 January 3, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Raptor Lake Raptor Lake
Model number i7-1355U i3-1315U
Integrated GPU Iris Xe Graphics (96EU) UHD Graphics (64EU)
Rival Equivalent - - AMD Ryzen 3 7330U
Successor - Intel Core Ultra 7 255U - Intel Core 3 100U
Intel CPU rating (#159th place)

CPU

Performance Cores
P-Cores 2 2
P-Threads 4 4
Base Frequency (P) 1.7 GHz 1.2 GHz
Turbo Boost Frequency (P) 5 GHz 4.5 GHz
Efficient Cores
E-Cores 8 4
E-Threads 8 4
Base Frequency (E) 1.2 GHz 0.9 GHz
Turbo Boost Frequency (E) 3.7 GHz 3.3 GHz
Total
Total Cores 10 6
Total Threads 12 8
Bus Frequency 100 MHz 100 MHz
Multiplier 17x 12x
L1 Cache 80K (per core) 80K (per core)
L2 Cache 1280K (per core) 1280K (per core)
L3 Cache 12MB (shared) 10MB (shared)
Unlocked Multiplier No No

Package

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

iGPU

Integrated Graphics Intel Iris Xe Graphics (96EU) Intel UHD Graphics (64EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1300 MHz 1250 MHz
Shading Units 768 512
TMUs 48 32
ROPs 24 16
Execution Units 96 64
TGP 15 W 15 W
iGPU FLOPS
Core i7 1355U +54%
2 TFLOPS
Core i3 1315U
1.3 TFLOPS
More info: UHD Graphics (64 EU) compared to Iris Xe Graphics G7 (96EU)

Memory Support

Memory Types - DDR5-5200
- DDR4-3200
- LPDDR5-6400
- LPDDR5x-6400
- LPDDR4x-4267		 - DDR5-5200
- DDR4-3200
- LPDDR5-5200
- LPDDR5x-5200
- LPDDR4x-4267
Max. Memory Size 96 GB 96 GB
Memory Channels 2 2
ECC Support No No

Misc

Official Site Intel Core i7 1355U official page Intel Core i3 1315U official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
22 (59.5%)
15 (40.5%)
Total votes: 37

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6. Intel Core i7 1355U vs Intel Core i5 1335U
7. Intel Core i7 1355U vs AMD Ryzen 7 7730U
8. Intel Core i7 1355U vs Intel Core Ultra 7 155H
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Comments

So which CPU will you choose: Intel Core i3 1315U or i7 1355U?
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