Core i7-8550U vs i7-8700k
Description
The i7-8550U is based on Kaby Lake architecture while the i7-8700k is based on Coffee Lake.
Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i7-8700k is 2.7 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 i7-8700k gets 443.8 k points.
Summarizing, the i7-8700k is 2.7 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
906ea
Core
Kaby Lake-R
Coffee Lake-S
Base frecuency
1.8 GHz
3.7 GHz
Boost frecuency
4 GHz
4.7 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
4/8
6/12
TDP
15 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
8192 kB
12288 kB
Date
August 2017
October 2017
Mean monothread perf.
64.2k points
80.6k points
Mean multithread perf.
166.12k points
443.77k 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
i7-8700k
Test#1 (Integers)
3.91k
4.13k (x1.06)
Test#2 (FP)
15.98k
16.96k (x1.06)
Test#3 (Generic, ZIP)
5.11k
5.56k (x1.09)
Test#1 (Memory)
11.05k
12.85k (x1.16)
TOTAL
36.05k
39.5k (x1.1)
Multithread
i7-8550U
i7-8700k
Test#1 (Integers)
11.76k
24.01k (x2.04)
Test#2 (FP)
50.15k
108.69k (x2.17)
Test#3 (Generic, ZIP)
16.76k
36.62k (x2.19)
Test#1 (Memory)
4.17k
9.33k (x2.24)
TOTAL
82.84k
178.64k (x2.16)
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
i7-8700k
Test#1 (Integers)
12.93k
12.92k (x1)
Test#2 (FP)
20.59k
20.68k (x1)
Test#3 (Generic, ZIP)
5.41k
5.3k (x0.98)
Test#1 (Memory)
10.48k
12.59k (x1.2)
TOTAL
49.41k
51.48k (x1.04)
Multithread
i7-8550U
i7-8700k
Test#1 (Integers)
41.11k
94.26k (x2.29)
Test#2 (FP)
65.04k
152.55k (x2.35)
Test#3 (Generic, ZIP)
17.53k
39.74k (x2.27)
Test#1 (Memory)
4.22k
8.53k (x2.02)
TOTAL
127.9k
295.07k (x2.31)
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-8550U
i7-8700k
Test#1 (Integers)
13.15k
16.87k (x1.28)
Test#2 (FP)
19.7k
26.12k (x1.33)
Test#3 (Generic, ZIP)
5.1k
6.33k (x1.24)
Test#1 (Memory)
9.21k
13.71k (x1.49)
TOTAL
47.16k
63.03k (x1.34)
Multithread
i7-8550U
i7-8700k
Test#1 (Integers)
34.13k
105.74k (x3.1)
Test#2 (FP)
53.79k
180.52k (x3.36)
Test#3 (Generic, ZIP)
13.91k
44.99k (x3.24)
Test#1 (Memory)
4.12k
8.51k (x2.06)
TOTAL
105.95k
339.77k (x3.21)
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
i7-8700k
Test#1 (Integers)
25.37k
31.2k (x1.23)
Test#2 (FP)
22.6k
27.82k (x1.23)
Test#3 (Generic, ZIP)
5.13k
6.57k (x1.28)
Test#1 (Memory)
11.1k
15k (x1.35)
TOTAL
64.2k
80.6k (x1.26)
Multithread
i7-8550U
i7-8700k
Test#1 (Integers)
72.82k
202.42k (x2.78)
Test#2 (FP)
71.71k
186.33k (x2.6)
Test#3 (Generic, ZIP)
17.35k
44.96k (x2.59)
Test#1 (Memory)
4.24k
10.05k (x2.37)
TOTAL
166.12k
443.77k (x2.67)
Performance/W
i7-8550U
i7-8700k
Test#1 (Integers)
4855 points/W
2131 points/W
Test#2 (FP)
4781 points/W
1961 points/W
Test#3 (Generic, ZIP)
1157 points/W
473 points/W
Test#1 (Memory)
282 points/W
106 points/W
TOTAL
11075 points/W
4671 points/W
Performance/GHz
i7-8550U
i7-8700k
Test#1 (Integers)
6343 points/GHz
6639 points/GHz
Test#2 (FP)
5650 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1397 points/GHz
Test#1 (Memory)
2774 points/GHz
3192 points/GHz
TOTAL
16049 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