Core i7-6900K vs i7-8700k
Description
The i7-6900K is based on Broadwell architecture while the i7-8700k is based on Coffee Lake.
Using the multithread performance as a reference, the i7-6900K gets a score of 427.5 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i7-8700k is 1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-6900K gets a score of 427.5 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i7-8700k is 1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
406f1
906ea
Core
Broadwell-E
Coffee Lake-S
Base frecuency
3.2 GHz
3.7 GHz
Boost frecuency
3.7 GHz
4.7 GHz
Socket
LGA 2011-3
LGA 1151
Cores/Threads
8/16
6/12
TDP
140 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
20480 kB
12288 kB
Date
September 2016
October 2017
Mean monothread perf.
49.76k points
80.6k points
Mean multithread perf.
427.51k points
443.77k 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
i7-6900K
i7-8700k
Test#1 (Integers)
23.11k
31.2k (x1.35)
Test#2 (FP)
17.84k
27.82k (x1.56)
Test#3 (Generic, ZIP)
5.34k
6.57k (x1.23)
Test#1 (Memory)
3.47k
15k (x4.33)
TOTAL
49.76k
80.6k (x1.62)
Multithread
i7-6900K
i7-8700k
Test#1 (Integers)
184.19k
202.42k (x1.1)
Test#2 (FP)
181.2k
186.33k (x1.03)
Test#3 (Generic, ZIP)
47.44k
44.96k (x0.95)
Test#1 (Memory)
14.69k
10.05k (x0.68)
TOTAL
427.51k
443.77k (x1.04)
Performance/W
i7-6900K
i7-8700k
Test#1 (Integers)
1316 points/W
2131 points/W
Test#2 (FP)
1294 points/W
1961 points/W
Test#3 (Generic, ZIP)
339 points/W
473 points/W
Test#1 (Memory)
105 points/W
106 points/W
TOTAL
3054 points/W
4671 points/W
Performance/GHz
i7-6900K
i7-8700k
Test#1 (Integers)
6247 points/GHz
6639 points/GHz
Test#2 (FP)
4822 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1444 points/GHz
1397 points/GHz
Test#1 (Memory)
938 points/GHz
3192 points/GHz
TOTAL
13450 points/GHz
17148 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4