Intel Core i5 1135G7 vs i3 1215U

We compared two laptop CPUs: the 0.9-2.4 GHz Intel Core i5 1135G7 with 4-cores against the 1.2 GHz i3 1215U with 6-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


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
Generic CPU rating

Key Differences

What are the key differences between 1215U and 1135G7
Advantages of Intel Core i3 1215U
  • Newer - released 1-year and 6-months later
  • Has 2 more physical cores
  • Has 2048 KB larger L3 cache size
  • 23% faster in a single-core Geekbench v6 test - 1818 vs 1483 points
  • 5% higher Turbo Boost frequency (4.4 GHz vs 4.2 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench R23

Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 447.3 MB/sec 495.3 MB/sec
Clang compilation 27.2 Klines/sec 30.7 Klines/sec
HTML 5 Browser 103.3 pages/sec 136 pages/sec
PDF Renderer 139.9 Mpixels/sec 176.2 Mpixels/sec
Text processing 125.8 pages/sec 175.2 pages/sec
Background blur 26 images/sec 27.7 images/sec
Photo processing 50.2 images/sec 51.3 images/sec
Ray tracing 6.91 Mpixels/sec 5.51 Mpixels/sec
Sources: GeekBench [1], [2]


Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 32.9 GOps/sec 37.6 GOps/sec
Floating point math 19.9 GOps/sec 26.8 GOps/sec
Find prime numbers 36M Primes/sec 37M Primes/sec
Random string sorting 13.2M Strings/sec 13.9M Strings/sec
Data encryption 5.7 GBytes/sec 7.4 GBytes/sec
Data compression 107.7 MBytes/sec 122.2 MBytes/sec
Physics 605 Frames/sec 659 Frames/sec
Extended instructions 7.8B Matrices/sec 7.1B Matrices/sec
Sources: PassMark [3], [4]


Full technical specification of Intel Core i5 1135G7 and i3 1215U


Vendor Intel Intel
Released September 2, 2020 February 23, 2022
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Tiger Lake Alder Lake
Model number i5-1135G7 i3-1215U
Integrated GPU Iris Xe Graphics G7 80EU UHD Graphics (64EU)


Performance Cores
P-Cores 4 2
P-Threads 8 4
Base Frequency (P) 0.9-2.4 GHz 1.2 GHz
Turbo Boost Frequency (P) 4.2 GHz 4.4 GHz
Efficient Cores
E-Cores - 4
E-Threads - 4
Base Frequency (E) - 0.9 GHz
Turbo Boost Frequency (E) - 3.3 GHz
Total Cores 4 6
Total Threads 8 8
Bus Frequency 100 MHz 100 MHz
Multiplier 9-24x 12x
Bus Bandwidth 4 GT/s -
L1 Cache 96K (per core) 80K (per core)
L2 Cache 1280K (per core) 1280K (per core)
L3 Cache 8MB (shared) 10MB (shared)
Unlocked Multiplier No No


Fabrication process 10 nm 10 nm
TDP (PL1) 12-28 W (configurable) 12-15 W (configurable)
Max. Boost TDP (PL2) - 55 W
Socket BGA-1449 BGA-1744
Peak temperature 100°C 100°C


Integrated Graphics Iris Xe Graphics G7 80EU Intel UHD Graphics (64EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1300 MHz 1100 MHz
Shading Units 640 512
TMUs 40 32
ROPs 20 16
Execution Units 80 64
TGP 15 W 45 W

Memory Support

Memory types - DDR4-3200
- LPDDR4-4267
- DDR5-4800
- DDR4-3200
- LPDDR5-5200
- LPDDR4x-4267
Memory Size 64 GB 64 GB
Max. Memory Channels 2 2
ECC Support No No


Official site Intel Core i5 1135G7 official page Intel Core i3 1215U official page
PCI Express Version 4.0 4.0
PCI Express Lanes 16 20

Cast your vote

Choose between two processors
120 (12.2%)
861 (87.8%)
Total votes: 981


So which CPU will you choose: Intel Core i3 1215U or i5 1135G7?