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Core i7-6700K vs i7-6700


Description
Both models i7-6700K and i7-6700 are based on Skylake architecture.

Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.

Using the multithread performance as a reference, the i7-6700K gets a score of 254.6 k points while the i7-6700 gets 243.4 k points.

Summarizing, the i7-6700K is 1 times faster than the i7-6700 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
506e3
Core
Skylake-S
Skylake-S
Architecture
Base frecuency
4 GHz
3.4 GHz
Boost frecuency
4.2 GHz
4 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/8
4/8
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
May 2015
May 2015
Mean monothread perf.
63.22k points
57.76k points
Mean multithread perf.
254.56k points
243.4k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-6700K
i7-6700
Test#1 (Integers)
25.78k
24.83k (x0.96)
Test#2 (FP)
23.08k
21.82k (x0.95)
Test#3 (Generic, ZIP)
5.32k
4.98k (x0.93)
Test#1 (Memory)
9.03k
6.14k (x0.68)
TOTAL
63.22k
57.76k (x0.91)

Multithread

i7-6700K

i7-6700
Test#1 (Integers)
112.83k
109.79k (x0.97)
Test#2 (FP)
106.86k
102.39k (x0.96)
Test#3 (Generic, ZIP)
25.76k
24.72k (x0.96)
Test#1 (Memory)
9.12k
6.51k (x0.71)
TOTAL
254.56k
243.4k (x0.96)

Performance/W
i7-6700K
i7-6700
Test#1 (Integers)
1188 points/W
1689 points/W
Test#2 (FP)
1125 points/W
1575 points/W
Test#3 (Generic, ZIP)
271 points/W
380 points/W
Test#1 (Memory)
96 points/W
100 points/W
TOTAL
2680 points/W
3745 points/W

Performance/GHz
i7-6700K
i7-6700
Test#1 (Integers)
6139 points/GHz
6206 points/GHz
Test#2 (FP)
5495 points/GHz
5456 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1244 points/GHz
Test#1 (Memory)
2150 points/GHz
1535 points/GHz
TOTAL
15052 points/GHz
14441 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4