Intel Core i7-7700K vs Intel Core Ultra 7 255H

Compare Intel 7th Generation Core i7 4 core CPU vs Intel Core Ultra (Series 2) 16 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

3620 points
29% slightly better overall score
2788 points

Gaming Score

The raw gaming performance with a fast GPU

5762 points
66% significantly better gaming score
3457 points

Multitasking Score

Performance in workloads using up to 8 cores

2983 points
15% slightly better multitasking score
2584 points

Heavy Workload Score

Performance in workloads using up to 16 cores

2864 points
13% slightly better heavy workload score
2521 points

Free CPU Benchmark

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Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

85.21 points
212.94 points
149% significantly higher Blender score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

5174 points
13475 points
160% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1596 points
2524 points
58% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

4
16
300% significantly more cores

Threads

Number of logical processing units

8
16
100% significantly more threads

Clock Speed

Base frequency at which the chip operates

4.2 GHz
110% significantly higher clock speed
2 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.5 GHz
5.1 GHz
13% slightly higher turbo speed

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
28
75% significantly more pcie lanes

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

64 GiB
128 GiB
100% significantly more supported memory

L2 Cache

Secondary embedded memory, slower than L1 cache

1 MiB
28 MiB
2700% significantly more L2 cache

L3 Cache

General memory pool for all cores

8 MiB
24 MiB
200% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

471st of 1,089
572nd of 1,089

Family

The product line

7th Generation Core i7
Core Ultra (Series 2)

Release date

The official date of release of this chip

2017 February
2025 February

Memory Type

The type of memory used by this chip

DDR4-2133
DDR5-8400

Is Unlocked

Can this CPU can be overclocked

Yes
-

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-7700K vs Core Ultra 7 255H comparison

According to the hardwareDB Benchmark tool, the Core i7-7700K is faster than the Core Ultra 7 255H. Furthermore, our gaming benchmark shows that it also outperforms the Core Ultra 7 255H in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core Ultra 7 255H has significantly more cores with 16 cores compared to the Core i7-7700K that has 4 cores. It also has more threads than the Core i7-7700K. These CPUs have different clock speeds. Indeed, the Core i7-7700K has a significantly higher clock speed compared to the Core Ultra 7 255H. Despite this, the Core Ultra 7 255H has a slightly higher turbo speed. The cache sizes of these CPUs are different. Indeed, the Core Ultra 7 255H has significantly more L2 cache than the Core i7-7700K. The Core Ultra 7 255H also has significantly more L3 cache.

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 i7-7700K has more threads than cores. Each physical core is split into multiple threads.

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