Intel Core i7-1255U vs Intel Core i3-1215U

Compare Intel 12th Generation Core i7 10 core CPU vs Intel 12th Generation Core i3 6 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Benchmark Score

Overall Score

A combined score of all workloads

3722 points
13% slightly better overall score
3288 points

Gaming Score

The raw gaming performance with a fast GPU

5577 points
5718 points
2% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

3201 points
23% slightly better multitasking score
2595 points

Heavy Workload Score

Performance in workloads using up to 16 cores

3089 points
24% slightly better heavy workload score
2480 points

Free CPU Benchmark

Want to compare your processor against the Core i7-1255U and the Core i3-1215U? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

75.98 points
33% slightly higher Blender score
57.10 points
Cinebench R23 score

Cinebench R23 score

Multi threaded benchmark

9628 points
65% significantly higher Cinebench R23 score
5802 points

Specifications

Cores

Number of physical processing units

10
66% significantly more cores
6

Threads

Number of logical processing units

12
49% significantly more threads
8

Clock Speed

Base frequency at which the chip operates

1.7 GHz
41% slightly higher clock speed
1.2 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.7 GHz
6% slightly higher turbo speed
4.4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

15 W
Identical
15 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

20
Identical
20

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB
Identical
64 GiB

L1 Cache

Smallest embedded memory, but the fastest

800 KiB
66% significantly more L1 cache
480 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

4 MiB
4.5 MiB
12% slightly more L2 cache

L3 Cache

General memory pool for all cores

12 MiB
20% slightly more L3 cache
10 MiB

Other details

Rank

Ranking in the hardwareDB database

459th of 1,089
501st of 1,089

Family

The product line

12th Generation Core i7
12th Generation Core i3

Release date

The official date of release of this chip

2022 February
2022 February

Memory Type

The type of memory used by this chip

DDR5-4800
DDR5-4800

Is Unlocked

Can this CPU can be overclocked

No
No

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-1255U vs Core i3-1215U comparison

In our benchmarks, the Core i3-1215U beats the Core i7-1255U in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-1255U in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core i7-1255U has significantly more cores than the Core i3-1215U. Indeed, the Core i7-1255U has 10 cores compared to 6 cores found in the Core i3-1215U. It also has more threads than the Core i3-1215U. These CPUs have different clock speeds. Indeed, the Core i7-1255U has a slightly higher clock speed compared to the Core i3-1215U. Also, the Core i7-1255U has a slightly higher turbo speed. Both these chips have an identical TDP (Thermal Design Power). This measures the amount of heat they output and can be used to estimate power consumption. In terms of cache, the Core i3-1215U has slightly more L2 cache when compared to the Core i7-1255U. Despite this, the Core i7-1255U has slightly more L3 cache compared to the Core i3-1215U.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Core i7-1255U has more threads than cores. Each physical core is split into multiple threads.

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