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Core i7-6700K


Description
We need your help: we don't have results in all modes. If you have a i7-6700K and want to help us to complete the stats, you just have to run the benchmark at stock frequency (no oc) in modes AVX, and validate the results. You don't have to register and the whole process will take less than 3 minutes per mode.

The Core i7-6700K is a cpu manufactured by Intel that was released on May 2015. This model has 4 Skylake-S cores with HyperThreading, runs at 4000 MHz as base frequency and has a a thermal design power of 95 W.

The i7-6700K has 32+32 kB of cache L1, 256 kB of cache L2 and 8192 kB of cache L3.

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.

Specs
Official name
Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
CPUID
506e3
Core
Skylake-S
Architecture
Base frecuency
4 GHz
Boost frecuency
4.2 GHz
Socket
LGA 1151
Cores/Threads
4/8
TDP
95 W
Cache L1 (d+i)
32+32 kB
Cache L2
256 kB
Cache L3
8192 kB
Release date
May 2015

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
Multithread
Test#1 (Integers)
4072
16366 (x4.0)
Test#2 (FP)
16620
77341 (x4.7)
Test#3 (Generic, ZIP)
5225
25654 (x4.9)
Test#1 (Memory)
6279
10206 (x1.6)
TOTAL
32196
129568 (x4.0)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
Multithread
Test#1 (Integers)
14733
61093 (x4.1)
Test#2 (FP)
21273
99165 (x4.7)
Test#3 (Generic, ZIP)
5516
26574 (x4.8)
Test#1 (Memory)
6320
10257 (x1.6)
TOTAL
47841
197089 (x4.1)

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
Multithread
Test#1 (Integers)
25782
112827 (x4.4)
Test#2 (FP)
23081
106861 (x4.6)
Test#3 (Generic, ZIP)
5325
25758 (x4.8)
Test#1 (Memory)
9031
9116 (x1.0)
TOTAL
63219
254562 (x4.0)

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) [% vs time]

grafica bm.hardlimit.com


Test#2 (FP) [% vs time]

grafica bm.hardlimit.com


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

grafica bm.hardlimit.com


Test#1 (Memory) [% 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) [% vs time]

grafica bm.hardlimit.coma


Test#2 (FP) [% vs time]

grafica bm.hardlimit.coma


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

grafica bm.hardlimit.coma


Test#1 (Memory) [% vs time]

grafica bm.hardlimit.coma

Similar CPUs to Core i7-6700K
Intel Core i7-6700K (This model)
 Mode FPU monothread  [32196 points]
 Mode FPU multithread  [129568 points]
 Mode AVX2 monothread  [63219 points]
 Mode AVX2 multithread  [254562 points]
 Mode FPU monothread  [29517 points -8.32%]
 Mode FPU multithread  [122203 points -5.68%]
 Mode AVX2 monothread  [47961 points -24.13%]
 Mode AVX2 multithread  [198270 points -22.11%]
 Mode FPU monothread  [33789 points +4.95%]
 Mode FPU multithread  [108015 points -16.63%]
 Mode AVX2 monothread  [50504 points -20.11%]
 Mode AVX2 multithread  [176348 points -30.72%]
 Mode FPU monothread  [14794 points -54.05%]
 Mode FPU multithread  [123775 points -4.47%]
 Mode AVX2 monothread  [29395 points -53.50%]
 Mode AVX2 multithread  [237831 points -6.57%]
 Mode FPU monothread  [29686 points -7.79%]
 Mode FPU multithread  [63243 points -51.19%]
 Mode AVX2 monothread  [58553 points -7.38%]
 Mode AVX2 multithread  [126474 points -50.32%]
 Mode FPU monothread  [31497 points -2.17%]
 Mode FPU multithread  [129295 points -0.21%]
 Mode AVX2 monothread  [59270 points -6.25%]
 Mode AVX2 multithread  [251822 points -1.08%]
 Mode FPU monothread  [36047 points +11.96%]
 Mode FPU multithread  [82837 points -36.07%]
 Mode AVX2 monothread  [65595 points +3.76%]
 Mode AVX2 multithread  [169947 points -33.24%]
 Mode FPU monothread  [39185 points +21.71%]
 Mode FPU multithread  [125773 points -2.93%]
 Mode AVX2 monothread  [70911 points +12.17%]
 Mode AVX2 multithread  [262195 points +3.00%]
 Mode FPU monothread  [39495 points +22.67%]
 Mode FPU multithread  [178644 points +37.88%]
 Mode AVX2 monothread  [80598 points +27.49%]
 Mode AVX2 multithread  [443765 points +74.33%]
 Mode FPU monothread  [25461 points -20.92%]
 Mode FPU multithread  [156831 points +21.04%]
 Mode AVX2 monothread  [45818 points -27.53%]
 Mode AVX2 multithread  [281476 points +10.57%]
 Mode FPU monothread  [36531 points +13.47%]
 Mode FPU multithread  [107488 points -17.04%]
 Mode AVX2 monothread  [66743 points +5.57%]
 Mode AVX2 multithread  [229199 points -9.96%]
          
FPU mode comparison

Monothread integers operations
Model
Score
4145 [1.80%]
4145 [1.79%]
Intel Core i7-6700K
4072
This model
4010 [-1.52%]
3953 [-2.93%]
3890 [-4.46%]

Multithread integers operations
Model
Score
Intel Core i7-6700K
16366
This model
16021 [-2.11%]
15987 [-2.32%]
15964 [-2.46%]

Monothread floating point operations
Model
Score
17378 [4.56%]
16990 [2.23%]
16695 [0.45%]
Intel Core i7-6700K
16620
This model
16421 [-1.20%]
16382 [-1.43%]
16084 [-3.22%]
15977 [-3.87%]

Multithread floating point operations
Model
Score
86105 [11.33%]
85479 [10.52%]
Intel Core i7-6700K
77341
This model
77188 [-0.20%]
76437 [-1.17%]
74870 [-3.19%]
71096 [-8.07%]

Monothread generic test (Zip compression)
Model
Score
5391 [3.17%]
5338 [2.17%]
Intel Core i7-6700K
5225
This model
5170 [-1.05%]

Multithread generic test (Zip compression)
Model
Score
27476 [7.10%]
Intel Core i7-6700K
25654
This model
24602 [-4.10%]
23698 [-7.62%]

Monothread memory performance
Model
Score
6616 [5.38%]
Intel Core i7-6700K
6279
This model
5648 [-10.04%]
5606 [-10.72%]
5511 [-12.23%]

Multithread memory performance
Model
Score
12876 [26.16%]
12252 [20.04%]
11933 [16.92%]
Intel Core i7-6700K
10206
This model
8975 [-12.06%]
8963 [-12.18%]
          
SSE mode comparison

Monothread integers operations
Model
Score
15531 [5.41%]
15375 [4.36%]
15225 [3.34%]
15221 [3.31%]
Intel Core i7-6700K
14733
This model
14296 [-2.97%]
14043 [-4.68%]
13950 [-5.32%]
13839 [-6.07%]

Multithread integers operations
Model
Score
74617 [22.14%]
71148 [16.46%]
Intel Core i7-6700K
61093
This model
58565 [-4.14%]
58562 [-4.14%]
55447 [-9.24%]
54670 [-10.51%]

Monothread floating point operations
Model
Score
23193 [9.03%]
22214 [4.43%]
22020 [3.51%]
21941 [3.14%]
21686 [1.94%]
Intel Core i7-6700K
21273
This model
20702 [-2.68%]
20678 [-2.79%]
20589 [-3.21%]
20546 [-3.42%]
20026 [-5.86%]

Multithread floating point operations
Model
Score
126140 [27.20%]
119634 [20.64%]
107946 [8.86%]
105876 [6.77%]
102739 [3.60%]
Intel Core i7-6700K
99165
This model
92948 [-6.27%]
90708 [-8.53%]
86736 [-12.53%]
86170 [-13.10%]

Monothread generic test (Zip compression)
Model
Score
5868 [6.37%]
Intel Core i7-6700K
5516
This model
5417 [-1.81%]
5405 [-2.01%]

Multithread generic test (Zip compression)
Model
Score
28553 [7.45%]
27048 [1.78%]
Intel Core i7-6700K
26574
This model
24109 [-9.28%]
23289 [-12.36%]
22866 [-13.95%]

Monothread memory performance
Model
Score
7398 [17.07%]
6601 [4.46%]
Intel Core i7-6700K
6320
This model
5664 [-10.37%]
5494 [-13.07%]
5209 [-17.58%]

Multithread memory performance
Model
Score
17086 [66.58%]
12912 [25.88%]
12728 [24.09%]
12581 [22.66%]
11858 [15.61%]
Intel Core i7-6700K
10257
This model
9770 [-4.75%]
8989 [-12.37%]
8641 [-15.76%]
8527 [-16.86%]
8426 [-17.85%]
          
AVX2 mode comparison

Monothread integers operations
Model
Score
26118 [1.30%]
Intel Core i7-6700K
25782
This model
25769 [-0.05%]
25645 [-0.53%]
24891 [-3.46%]
24699 [-4.20%]

Multithread integers operations
Model
Score
123326 [9.30%]
122923 [8.95%]
122648 [8.70%]
118409 [4.95%]
Intel Core i7-6700K
112827
This model
110919 [-1.69%]
109572 [-2.88%]
107778 [-4.48%]
107496 [-4.73%]
103774 [-8.02%]

Monothread floating point operations
Model
Score
23261 [0.78%]
23234 [0.66%]
23191 [0.48%]
Intel Core i7-6700K
23081
This model
23009 [-0.31%]
22930 [-0.65%]
22707 [-1.62%]
22677 [-1.75%]

Multithread floating point operations
Model
Score
116432 [8.96%]
113613 [6.32%]
111561 [4.40%]
Intel Core i7-6700K
106861
This model
105716 [-1.07%]
105006 [-1.74%]
103376 [-3.26%]
102275 [-4.29%]
98070 [-8.23%]

Monothread generic test (Zip compression)
Model
Score
5368 [0.81%]
5352 [0.50%]
Intel Core i7-6700K
5325
This model

Multithread generic test (Zip compression)
Model
Score
Intel Core i7-6700K
25758
This model
25570 [-0.73%]
25487 [-1.05%]
25248 [-1.98%]

Monothread memory performance
Model
Score
Intel Core i7-6700K
9031
This model

Multithread memory performance
Model
Score
Intel Core i7-6700K
9116
This model
8735 [-4.17%]

Hardlimit Benchmark Central - Ver. 3.7.9