Home > CPU Comparison > Core i5 1135G7 or Core i3 1215U: what's better?

Intel Core i5 1135G7 vs i3 1215U

36 out of 100
Intel Core i5 1135G7
VS
42 out of 100
Intel Core i3 1215U
Intel Core i5 1135G7
Intel Core 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.

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

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.
πŸ”Œ Usage Scenario:

Key Differences

What are the key differences between 1215U and 1135G7
Advantages of Intel Core i5 1135G7
  • More powerful Iris Xe Graphics G7 80EU integrated graphics: 1.7 vs 1.1 TFLOPS
Advantages of Intel Core i3 1215U
  • Has 2 more physical cores
  • Newer - released 1 year and 6 months later
  • Has 2 MB larger L3 cache size
  • 22% faster in a single-core Geekbench v6 test - 2184 vs 1783 points
  • 5% higher Turbo Boost frequency (4.4 GHz vs 4.2 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i5 1135G7
vs
Core i3 1215U

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 i5 1135G7
1783
Core i3 1215U +22%
2184
Geekbench 6 (Multi-Core)
Core i5 1135G7
4930
Core i3 1215U +15%
5662
File compression 415.2 MB/sec 356.7 MB/sec
Clang compilation 31.2 Klines/sec 45.1 Klines/sec
HTML 5 Browser 92.1 pages/sec 117.1 pages/sec
PDF Renderer 149.6 Mpixels/sec 180.5 Mpixels/sec
Text processing 149.6 pages/sec 224.7 pages/sec
Background blur 25 images/sec 18.9 images/sec
Photo processing 46.9 images/sec 54.2 images/sec
Ray tracing 6.1 Mpixels/sec 9.45 Mpixels/sec
Sources: GeekBench [1], [2] – 775 & 1106 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Core i5 1135G7
2596
Core i3 1215U +19%
3101
Passmark CPU (Multi-Core)
Core i5 1135G7
9301
Core i3 1215U +9%
10106
Integer math 31.3 GOps/sec 34.4 GOps/sec
Floating point math 19 GOps/sec 24.6 GOps/sec
Find prime numbers 34M Primes/sec 30M Primes/sec
Random string sorting 12.4M Strings/sec 12.7M Strings/sec
Data encryption 5.3 GBytes/sec 6.8 GBytes/sec
Data compression 101 MBytes/sec 113.1 MBytes/sec
Physics 559 Frames/sec 546 Frames/sec
Extended instructions 7.2B Matrices/sec 6.7B Matrices/sec
Sources: PassMark [3], [4] – 17882 & 3915 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i5 1135G7
56.94
Core i3 1215U +3%
58.9

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 8.5 PPW 18.9 PPW
Geekbench 6 Multi / Watt 176.1 PPW 377.5 PPW
Passmark CPU Mark / Watt 332.2 PPW 673.7 PPW
Blender / Watt 2.03 PPW 3.93 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 1135G7
DateBenchmarkResult
πŸ“˜ 2026-07-25 (Neup_Gamerz)GeekBench1908 / 5270
πŸ“˜ 2026-07-17 (monir)GeekBench1862 / 6087
πŸ“˜ 2025-12-30 (VSM)GeekBench1191 / 1891
πŸ“˜ 2023-11-26 (Guest #3)Cinebench 202464 / 238
Add View all (4)
Intel Core i3 1215U
DateBenchmarkResult
πŸ“˜ 2025-04-11 (Shanmukh)GeekBench2126 / 6248
πŸ“˜ 2023-11-06 (goryn81)Cinebench 202489 / 283
Add View all (2)

Specifications

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

General

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)
Successor - Intel Core Ultra 5 225U - Intel Core 3 100U

CPU

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
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

Package

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 100Β°C 100Β°C

iGPU

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 15 W
iGPU FLOPS
Core i5 1135G7 +55%
1.7 TFLOPS
Core i3 1215U
1.1 TFLOPS
More info: UHD Graphics (64 EU) compared to Iris Xe Graphics G7 (80EU)

Memory Support

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

Misc

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
207 (12.3%)
1482 (87.7%)
Total votes: 1689

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7. Intel Core i5 1135G7 vs Intel Core i5 1235U (8)
8. Intel Core i5 1135G7 vs AMD Ryzen 5 7520U
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10. Intel Core i5 1135G7 vs Intel Core Ultra 5 125U
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Comments

So which CPU will you choose: Intel Core i3 1215U or i5 1135G7?
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Avatar
Tio October 15, 2023 at 06:50 AM
4p cores are definitely better than just 2 p cores + 4 e cores.
+196 Reply
Avatar
Aditya October 24, 2023 at 07:49 AM
But why aren't the E cores weak? They are still very powerful, operating at 3.3GHz when all the cores work together.
+162 Reply
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donaldtrumpisapedo August 3, 2025 at 03:59 AM
11 to 12th gen was a big jump. here the 12th gen is faster at most tasks. gpu is weaker though.
0 Reply
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