Intel Core i7-9700K vs Intel Core i7-1255U

Compare Intel 9th Generation Core i7 8 core CPU vs Intel 12th Generation Core i7 10 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

Quickly search and compare processors

Benchmark Score

Overall Score

A combined score of all workloads

5644 points
51% significantly better overall score
3722 points

Gaming Score

The raw gaming performance with a fast GPU

8019 points
43% significantly better gaming score
5577 points

Multitasking Score

Performance in workloads using up to 8 cores

4848 points
51% significantly better multitasking score
3201 points

Heavy Workload Score

Performance in workloads using up to 16 cores

4655 points
50% significantly better heavy workload score
3089 points

Free CPU Benchmark

Want to compare your processor against the Core i7-9700K and the Core i7-1255U? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

133.80 points
76% significantly higher Blender score
75.98 points

Specifications

Cores

Number of physical processing units

8
10
25% slightly more cores

Threads

Number of logical processing units

8
12
49% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.6 GHz
111% significantly higher clock speed
1.7 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.9 GHz
4% slightly higher turbo speed
4.7 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

95 W
15 W
533% significantly lower TDP

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
20
25% slightly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

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

512 KiB
800 KiB
56% significantly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

2 MiB
4 MiB
100% significantly more L2 cache

L3 Cache

General memory pool for all cores

12 MiB
Identical
12 MiB

Other details

Rank

Ranking in the hardwareDB database

282nd of 1,089
459th of 1,089

Family

The product line

9th Generation Core i7
12th Generation Core i7

Release date

The official date of release of this chip

2018 November
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
No

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-9700K vs Core i7-1255U specs and performance

According to the hardwareDB Benchmark tool, the Core i7-9700K is faster than the Core i7-1255U. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-1255U in all gaming tests too.

With info from our database, we find that the Core i7-1255U has slightly more cores with 10 cores whereas the Core i7-9700K has 8 cores. It also has more threads than the Core i7-9700K. With our hardware info, we find that the Core i7-9700K has a significantly higher clock speed than the Core i7-1255U. Also, the Core i7-9700K has a slightly higher turbo speed. The Core i7-1255U outputs less heat than Core i7-9700K thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The info from our database shows that the Core i7-1255U has more L2 cache than the Core i7-9700K. However, both these chips have the same amount of L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. For instance, the Core i7-9700K has the same number of threads as cores. This means the the CPU does not support hyperthreading.

Comments

No comments yet! Be the first to leave a comment using the form below.

Keep comments on topic and be polite. Comments are subject to moderation before they are published.

Popular CPU Comparisons