Intel Core i5-6600K vs Intel Xeon E5-2666 v3

Compare Intel 6th Generation Core i5 4 core CPU vs Intel 10 core processor, specs and benchmark score. Which is the better CPU for gaming?

Benchmark Score
Other Benchmarks
Specifications
Comments (0)
Popular Comparisons

CPU Comparison

Quickly search and compare processors

Benchmark Score

Overall Score

A combined score of all workloads

2754 points

4823 points

75% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

5105 points

5321 points

4% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

2098 points

4658 points

122% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

2013 points

4614 points

129% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i5-6600K and the Xeon E5-2666 v3? Download our free and quick PC Performance Test.

Download CPU Benchmark

Other Benchmarks

3DMark Physics score

Physics simulation benchmark

2595 points

4806 points

85% significantly higher 3DMark Physics score

Blender score

Cycles Render (Samples per minute)

55.62 points

152.03 points

173% significantly higher Blender score

Specifications

Cores

Number of physical processing units

150% significantly more cores

Threads

Number of logical processing units

400% significantly more threads

Clock Speed

Base frequency at which the chip operates

3.5 GHz

20% slightly higher clock speed

2.90 GHz

L2 Cache

Secondary embedded memory, slower than L1 cache

1 MiB

2.5 MiB

150% significantly more L2 cache

L3 Cache

General memory pool for all cores

6 MiB

25 MiB

316% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

578th of 1,089

363rd of 1,089

Family

The product line

6th Generation Core i5

Release date

The official date of release of this chip

2015 August

Memory Type

The type of memory used by this chip

DDR4-1866

Is Unlocked

Can this CPU can be overclocked

Yes

Supports ECC memory

Does this CPU support error correcting memory

Core i5-6600K vs Xeon E5-2666 v3 benchmarks

In our benchmarks, the Xeon E5-2666 v3 beats the Core i5-6600K in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i5-6600K in all gaming tests too.

With info from our database, we find that the Xeon E5-2666 v3 has significantly more cores with 10 cores whereas the Core i5-6600K has 4 cores. It also has more threads than the Core i5-6600K. Our comparison shows that the Core i5-6600K has a slightly higher clock speed compared to the Xeon E5-2666 v3. The info from our database shows that the Xeon E5-2666 v3 has more L2 cache than the Core i5-6600K. The Xeon E5-2666 v3 also has significantly more 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 i5-6600K has the same number of threads as cores. This means the the CPU does not support hyperthreading.