Intel Core i9-7940X vs Intel Core i5-1245U

Compare Intel Core X-series 14 core CPU vs Intel 10 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Specifications
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Benchmark Score

Overall Score

A combined score of all workloads

5222 points

21% slightly better overall score

4282 points

Gaming Score

The raw gaming performance with a fast GPU

6170 points

0.41% slightly better gaming score

6145 points

Multitasking Score

Performance in workloads using up to 8 cores

4938 points

32% slightly better multitasking score

3732 points

Heavy Workload Score

Performance in workloads using up to 16 cores

4896 points

35% slightly better heavy workload score

3606 points

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Other Benchmarks

Blender score

Cycles Render (Samples per minute)

261.54 points

183% significantly higher Blender score

92.33 points

Specifications

Cores

Number of physical processing units

40% slightly more cores

Threads

Number of logical processing units

133% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.1 GHz

93% significantly higher clock speed

1.6 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.3 GHz

4.4 GHz

2% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

165 W

15 W

1000% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

120% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB

100% significantly more supported memory

64 GiB

L1 Cache

Smallest embedded memory, but the fastest

896 KiB

11% slightly more L1 cache

800 KiB

L3 Cache

General memory pool for all cores

25 MiB

108% significantly more L3 cache

12 MiB

Other details

Rank

Ranking in the hardwareDB database

324th of 1,089

412th of 1,089

Family

The product line

Core X-series

12th Generation Core i5

Release date

The official date of release of this chip

2017 August

2022 February

Memory Type

The type of memory used by this chip

DDR4-2666

DDR5-4800

Is Unlocked

Can this CPU can be overclocked

Yes

Supports ECC memory

Does this CPU support error correcting memory

Core i9-7940X vs Core i5-1245U comparison

According to the hardwareDB Benchmark tool, the Core i9-7940X is faster than the Core i5-1245U. Despite this, the Core i5-1245U has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Core i9-7940X has slightly more cores with 14 cores compared to the Core i5-1245U that has 10 cores. It also has more threads than the Core i5-1245U. Our comparison shows that the Core i9-7940X has a significantly higher clock speed compared to the Core i5-1245U.

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 i9-7940X has more threads than cores. Each physical core is split into multiple threads.