Intel Core i7-8700K vs Intel Core i7-7800X

Compare Intel 8th Generation Core i7 6 core CPU vs Intel Core X-series 6 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Price

The cheapest price from our partner retailers

$ 194.00
$ 161.63 significantly less expensive
$ 355.63

Benchmark Score

Overall Score

A combined score of all workloads

5130 points
14% slightly better overall score
4493 points

Gaming Score

The raw gaming performance with a fast GPU

7103 points
23% slightly better gaming score
5755 points

Multitasking Score

Performance in workloads using up to 8 cores

4499 points
10% slightly better multitasking score
4089 points

Heavy Workload Score

Performance in workloads using up to 16 cores

4352 points
9% slightly better heavy workload score
3970 points

Free CPU Benchmark

Want to compare your processor against the Core i7-8700K and the Core i7-7800X? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

5074 points
6534 points
28% slightly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

126.15 points
14% slightly higher Blender score
110.00 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

6462 points
11% slightly higher Geekbench 5 (multi) score
5789 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1549 points
22% slightly higher Geekbench 5 (single) score
1269 points
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

6565 points
7% slightly higher Geekbench 6 (multi) score
6131 points
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1621 points
20% slightly higher Geekbench 6 (single) score
1344 points

Specifications

Cores

Number of physical processing units

6
Identical
6

Threads

Number of logical processing units

12
Identical
12

Clock Speed

Base frequency at which the chip operates

3.7 GHz
5% slightly higher clock speed
3.5 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.7 GHz
17% slightly higher turbo speed
4 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

95 W
47% significantly lower TDP
140 W

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
4
100% significantly more memory channels

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

384 KiB
Identical
384 KiB

L3 Cache

General memory pool for all cores

12 MiB
25 MiB
108% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

335th of 1,089
391st of 1,089

Family

The product line

8th Generation Core i7
Core X-series

Release date

The official date of release of this chip

2017 November
2017 May

Memory Type

The type of memory used by this chip

DDR4-2666
DDR4-2400

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-8700K vs Core i7-7800X comparison

Our benchmark analysis concludes that the Core i7-8700K performs better than the Core i7-7800X. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-7800X in all gaming tests too.

When comparing these CPUs we notice that they have the same number of cores and the same number of threads. These CPUs have different clock speeds. Indeed, the Core i7-8700K has a slightly higher clock speed compared to the Core i7-7800X. Also, the Core i7-8700K has a slightly higher turbo speed. A Core i7-8700K CPU outputs less heat than a Core i7-7800X CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

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 i7-8700K has more threads than cores. Each physical core is split into multiple threads.

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