Intel Core i7-6700 vs Intel Core i7-8700K

Compare Intel 6th Generation Core i7 4 core CPU vs Intel 8th Generation Core i7 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

$ 122.39
$ 71.61 significantly less expensive
$ 194.00

Benchmark Score

Overall Score

A combined score of all workloads

3117 points
5130 points
64% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

4991 points
7103 points
42% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

2559 points
4499 points
75% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

2457 points
4352 points
77% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i7-6700 and the Core i7-8700K? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

2828 points
5074 points
79% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

69.31 points
126.15 points
82% significantly higher Blender score
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

4052 points
6462 points
59% significantly higher Geekbench 5 (multi) score
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1252 points
1549 points
23% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

4207 points
6565 points
56% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1320 points
1621 points
22% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

4
6
49% significantly more cores

Threads

Number of logical processing units

8
12
49% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.4 GHz
3.7 GHz
8% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4 GHz
4.7 GHz
17% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

65 W
46% significantly lower TDP
95 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

16
Identical
16

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

L1 Cache

Smallest embedded memory, but the fastest

256 KiB
384 KiB
49% significantly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

1 MiB
1.5 MiB
49% significantly more L2 cache

L3 Cache

General memory pool for all cores

8 MiB
12 MiB
49% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

523rd of 1,089
335th of 1,089

Family

The product line

6th Generation Core i7
8th Generation Core i7

Release date

The official date of release of this chip

2015 August
2017 November

Memory Type

The type of memory used by this chip

DDR4-1866
DDR4-2666

Is Unlocked

Can this CPU can be overclocked

No
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-6700 vs Core i7-8700K comparison

According to the hardwareDB Benchmark tool, the Core i7-8700K is faster than the Core i7-6700. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-6700 in all gaming tests too.

When comparing core counts for these CPUs, we notice that the Core i7-8700K has significantly more cores with 6 cores compared to the Core i7-6700 that has 4 cores. It also has more threads than the Core i7-6700. With our hardware info, we find that the Core i7-8700K has a slightly higher clock speed than the Core i7-6700. Also, the Core i7-8700K has a slightly higher turbo speed. A Core i7-6700 CPU outputs less heat than a Core i7-8700K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Core i7-8700K has significantly more L2 cache than the Core i7-6700. The Core i7-8700K 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 i7-6700 has more threads than cores. Each physical core is split into multiple threads.

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