Intel Core i3 N305 vs i3 1215U

We compared two laptop CPUs: the 0 GHz Intel Core i3 N305 with 8-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.

Please note that the tests on the i3 N305 are done on engineering sample provided by our insiders. The data will be more accurate after we get the final version of this CPU.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 1215U and N305
Advantages of Intel Core i3 N305
  • Newer - released 10-months later
  • Has 2 more physical cores
Advantages of Intel Core i3 1215U
  • Supports up to 64 GB DDR5-4800 RAM
  • Has 4 MB larger L3 cache size
  • 43% faster in a single-core Geekbench v5 test - 1572 vs 1096 points
  • Newer PCI Express version – 4.0


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
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Full technical specification of Intel Core i3 N305 and i3 1215U


Vendor Intel Intel
Released January 3, 2023 February 23, 2022
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Alder Lake Alder Lake
Model number i3-N305 i3-1215U
Integrated GPU UHD Graphics (32EU) UHD Graphics (64EU)


Performance Cores
P-Cores - 2
P-Threads - 4
Base Frequency (P) 0 GHz 1.2 GHz
Turbo Boost Frequency (P) - 4.4 GHz
Efficient Cores
E-Cores 8 4
E-Threads 8 4
Base Frequency (E) 1800 GHz 0.9 GHz
Turbo Boost Frequency (E) 3.9 GHz 3.3 GHz
Total Cores 8 6
Total Threads 8 8
Bus Frequency 100 MHz 100 MHz
Multiplier 18x 12x
L1 Cache 96K (per core) 80K (per core)
L2 Cache 2MB (shared) 1280K (per core)
L3 Cache 6MB (shared) 10MB (shared)
Unlocked Multiplier No No


Fabrication process 10 nm 10 nm
Socket BGA-1744 BGA-1744
TDP 9-15 W (configurable) 12-15 W (configurable)
Max. Boost TDP - 55 W
Peak temperature 105°C 100°C


Integrated Graphics Intel UHD Graphics (32EU) Intel UHD Graphics (64EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1250 MHz 1100 MHz
Shading Units 256 512
TMUs 16 32
ROPs 8 16
Execution Units 32 64
TGP 45 W 45 W

Memory Support

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


Official site Intel Core i3 N305 official page Intel Core i3 1215U official page
PCI Express Version 3.0 4.0
PCI Express Lanes 9 20

Cast your vote

Choose between two processors
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4 (100%)
Total votes: 4


So which CPU will you choose: Intel Core i3 1215U or i3 N305?