Intel Core i7-6700K vs Intel Xeon E5-2670 v3

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CPU comparison with benchmarks


Intel Core i7-6700K CPU1 vs CPU2 Intel Xeon E5-2670 v3
Intel Core i7-6700K Intel Xeon E5-2670 v3

CPU comparison

Intel Core i7-6700K or Intel Xeon E5-2670 v3 - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i7-6700K has 4 cores with 8 threads and clocks with a maximum frequency of 4.20 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Core i7-6700K was released in Q3/2015.

The Intel Xeon E5-2670 v3 has 12 cores with 24 threads and clocks with a maximum frequency of 3.10 GHz. The CPU supports up to 768 GB of memory in 4 memory channels. The Intel Xeon E5-2670 v3 was released in Q3/2014.
Intel Core i7 (298) Family Intel Xeon E5 (71)
Intel Core i 6000 (24) CPU group Intel Xeon E5 v3 (32)
6 Generation 5
Skylake S Architecture Haswell E
Desktop / Server Segment Desktop / Server
Intel Core i7-4770K Predecessor Intel Xeon E5-2670 v2
Intel Core i7-7700K Successor --

CPU Cores and Base Frequency

The Intel Core i7-6700K is a 4 core processor with a clock frequency of 4.00 GHz (4.20 GHz). The Intel Xeon E5-2670 v3 has 12 CPU cores with a clock frequency of 2.30 GHz (3.10 GHz).

Intel Core i7-6700K Characteristic Intel Xeon E5-2670 v3
4 Cores 12
8 Threads 24
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? No
4.00 GHz Frequency 2.30 GHz
4.20 GHz Turbo Frequency (1 Core) 3.10 GHz
4.00 GHz Turbo Frequency (All Cores) 2.70 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i7-6700K Characteristic Intel Xeon E5-2670 v3
-- AI hardware --
-- AI specifications --

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

Intel HD Graphics 530 GPU no iGPU
0.35 GHz GPU frequency --
1.15 GHz GPU (Turbo) --
9 GPU Generation --
14 nm Technology
3 Max. displays
24 Compute units --
192 Shader --
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory --
12 DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Intel HD Graphics 530 GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The Intel Core i7-6700K supports a maximum of 64 GB of memory in 2 memory channels. The Intel Xeon E5-2670 v3 can connect up to 768 GB of memory in 4 memory channels.

Intel Core i7-6700K Characteristic Intel Xeon E5-2670 v3
DDR4-2133, DDR3-1866 Memory DDR4-2133
64 GB Max. Memory 768 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
34.1 GB/s Max. Bandwidth 68.2 GB/s
No ECC Yes
-- L2 Cache --
8.00 MB L3 Cache 30.00 MB
3.0 PCIe version 3.0
16 PCIe lanes 40
15.8 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i7-6700K has a TDP of 91 W, that of the Intel Xeon E5-2670 v3 is 120 W.

Intel Core i7-6700K Characteristic Intel Xeon E5-2670 v3
91 W TDP (PL1 / PBP) 120 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core i7-6700K has a 8.00 MB cache, while the Intel Xeon E5-2670 v3 cache has a total of 30.00 MB.

Intel Core i7-6700K Characteristic Intel Xeon E5-2670 v3
14 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
LGA 1151 Socket LGA 2011-3
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q3/2015 Release date Q3/2014
420 $ Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core i7-6700K to help other visitors make their purchasing decisions. The average rating is 3.9 stars (13 ratings). Rate now:
Here you can rate the Intel Xeon E5-2670 v3 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (5 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
Intel Core i7-6700K (100%)
Intel Xeon E5-2670 v3 (69%)
⌀ Multi core performance in 5 CPU benchmarks
Intel Core i7-6700K (59%)
Intel Xeon E5-2670 v3 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.20 GHz
1151 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 3.10 GHz
789 (69%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
4459 (54%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
8308 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.20 GHz
1347 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 3.10 GHz
968 (72%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
4665 (69%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
6758 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
8955 (65%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
13829 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
2313 (54%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.30 GHz
4281 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.20 GHz
180 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 3.10 GHz
119 (66%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
888 (52%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
1723 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.20 GHz
1124 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 3.10 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
5640 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.20 GHz
421 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 3.10 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
2059 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
0 (0%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core i7-6700K Intel Core i7-6700K
Intel HD Graphics 530 @ 1.15 GHz
442 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
@ 0.00 GHz
0 (0%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
82 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
0 (0%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
369.3 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i7-6700K Intel Core i7-6700K
4C 8T @ 4.00 GHz
464 (100%)
Intel Xeon E5-2670 v3 Intel Xeon E5-2670 v3
12C 24T @ 2.70 GHz
0 (0%)

Devices using this processor

Intel Core i7-6700K Intel Xeon E5-2670 v3
Unknown Unknown

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