Core i7-8550U vs i7-6700K
Description
The i7-8550U is based on Kaby Lake architecture while the i7-6700K is based on Skylake.
Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i7-6700K gets 254.6 k points.
Summarizing, the i7-6700K is 1.5 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i7-6700K gets 254.6 k points.
Summarizing, the i7-6700K is 1.5 times faster than the i7-8550U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ea
506e3
Core
Kaby Lake-R
Skylake-S
Base frecuency
1.8 GHz
4 GHz
Boost frecuency
4 GHz
4.2 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
4/8
4/8
TDP
15 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
August 2017
May 2015
Mean monothread perf.
64.2k points
63.22k points
Mean multithread perf.
166.12k points
254.56k points
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
i7-8550U
i7-6700K
Test#1 (Integers)
3.91k
4.07k (x1.04)
Test#2 (FP)
15.98k
16.62k (x1.04)
Test#3 (Generic, ZIP)
5.11k
5.23k (x1.02)
Test#1 (Memory)
11.05k
6.28k (x0.57)
TOTAL
36.05k
32.2k (x0.89)
Multithread
i7-8550U
i7-6700K
Test#1 (Integers)
11.76k
16.37k (x1.39)
Test#2 (FP)
50.15k
77.34k (x1.54)
Test#3 (Generic, ZIP)
16.76k
25.65k (x1.53)
Test#1 (Memory)
4.17k
10.21k (x2.45)
TOTAL
82.84k
129.57k (x1.56)
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
i7-8550U
i7-6700K
Test#1 (Integers)
12.93k
14.73k (x1.14)
Test#2 (FP)
20.59k
21.27k (x1.03)
Test#3 (Generic, ZIP)
5.41k
5.52k (x1.02)
Test#1 (Memory)
10.48k
6.32k (x0.6)
TOTAL
49.41k
47.84k (x0.97)
Multithread
i7-8550U
i7-6700K
Test#1 (Integers)
41.11k
61.09k (x1.49)
Test#2 (FP)
65.04k
99.17k (x1.52)
Test#3 (Generic, ZIP)
17.53k
26.57k (x1.52)
Test#1 (Memory)
4.22k
10.26k (x2.43)
TOTAL
127.9k
197.09k (x1.54)
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
i7-8550U
i7-6700K
Test#1 (Integers)
25.37k
25.78k (x1.02)
Test#2 (FP)
22.6k
23.08k (x1.02)
Test#3 (Generic, ZIP)
5.13k
5.32k (x1.04)
Test#1 (Memory)
11.1k
9.03k (x0.81)
TOTAL
64.2k
63.22k (x0.98)
Multithread
i7-8550U
i7-6700K
Test#1 (Integers)
72.82k
112.83k (x1.55)
Test#2 (FP)
71.71k
106.86k (x1.49)
Test#3 (Generic, ZIP)
17.35k
25.76k (x1.48)
Test#1 (Memory)
4.24k
9.12k (x2.15)
TOTAL
166.12k
254.56k (x1.53)
Performance/W
i7-8550U
i7-6700K
Test#1 (Integers)
4855 points/W
1188 points/W
Test#2 (FP)
4781 points/W
1125 points/W
Test#3 (Generic, ZIP)
1157 points/W
271 points/W
Test#1 (Memory)
282 points/W
96 points/W
TOTAL
11075 points/W
2680 points/W
Performance/GHz
i7-8550U
i7-6700K
Test#1 (Integers)
6343 points/GHz
6139 points/GHz
Test#2 (FP)
5650 points/GHz
5495 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1268 points/GHz
Test#1 (Memory)
2774 points/GHz
2150 points/GHz
TOTAL
16049 points/GHz
15052 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