Intel Core i7-1255U vs Intel Core i5-14400

Compare Intel 12th Generation Core i7 10 core CPU vs Intel Core i5 (14th gen) 10 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
8658 points
132% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

5577 points
11300 points
102% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

3201 points
7821 points
144% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

3089 points
7610 points
146% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i7-1255U and the Core i5-14400? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

75.98 points
202.91 points
167% significantly higher Blender score

Specifications

Cores

Number of physical processing units

10
Identical
10

Threads

Number of logical processing units

12
16
33% slightly more threads

Clock Speed

Base frequency at which the chip operates

1.7 GHz
2.5 GHz
47% significantly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.7 GHz
Identical
4.7 GHz

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
192 GiB
200% significantly more supported memory

L2 Cache

Secondary embedded memory, slower than L1 cache

4 MiB
9.5 MiB
137% significantly more L2 cache

L3 Cache

General memory pool for all cores

12 MiB
20 MiB
66% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

459th of 1,089
119th of 1,089

Family

The product line

12th Generation Core i7
Core i5 (14th gen)

Release date

The official date of release of this chip

2022 February
2024 February

Memory Type

The type of memory used by this chip

DDR5-4800
DDR5-4800

Is Unlocked

Can this CPU can be overclocked

No
-

Supports ECC memory

Does this CPU support error correcting memory

No
-

Core i7-1255U vs Core i5-14400 benchmarks

In our benchmarks, the Core i5-14400 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.

When comparing these CPUs we notice that they have the same number of cores but the Core i5-14400 has more threads. Our comparison shows that the Core i5-14400 has a significantly higher clock speed compared to the Core i7-1255U. In addition, both chips have the same turbo speed. The info from our database shows that the Core i5-14400 has more L2 cache than the Core i7-1255U. The Core i5-14400 also has significantly more L3 cache.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Core i7-1255U has more threads than cores. Each physical core is split into multiple threads.

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