Core i7-8550U vs i7-4790K
Description
The i7-8550U is based on Kaby Lake architecture while the i7-4790K is based on Haswell.
Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i7-4790K gets 215.5 k points.
Summarizing, the i7-4790K is 1.3 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 i7-4790K gets 215.5 k points.
Summarizing, the i7-4790K is 1.3 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
306c3
Core
Kaby Lake-R
Haswell
Base frecuency
1.8 GHz
4 GHz
Boost frecuency
4 GHz
4.4 GHz
Socket
BGA1356
LGA 1150
Cores/Threads
4/8
4/8
TDP
15 W
88 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
August 2017
May 2014
Mean monothread perf.
64.2k points
52.47k points
Mean multithread perf.
166.12k points
215.47k 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
i7-4790K
Test#1 (Integers)
3.91k
5.06k (x1.29)
Test#2 (FP)
15.98k
12.63k (x0.79)
Test#3 (Generic, ZIP)
5.11k
5.81k (x1.14)
Test#1 (Memory)
11.05k
4.96k (x0.45)
TOTAL
36.05k
28.47k (x0.79)
Multithread
i7-8550U
i7-4790K
Test#1 (Integers)
11.76k
18.28k (x1.55)
Test#2 (FP)
50.15k
64.07k (x1.28)
Test#3 (Generic, ZIP)
16.76k
27.52k (x1.64)
Test#1 (Memory)
4.17k
7.97k (x1.91)
TOTAL
82.84k
117.84k (x1.42)
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
i7-4790K
Test#1 (Integers)
12.93k
15.6k (x1.21)
Test#2 (FP)
20.59k
13.92k (x0.68)
Test#3 (Generic, ZIP)
5.41k
6.12k (x1.13)
Test#1 (Memory)
10.48k
5k (x0.48)
TOTAL
49.41k
40.65k (x0.82)
Multithread
i7-8550U
i7-4790K
Test#1 (Integers)
41.11k
65.48k (x1.59)
Test#2 (FP)
65.04k
63.29k (x0.97)
Test#3 (Generic, ZIP)
17.53k
27.93k (x1.59)
Test#1 (Memory)
4.22k
7.84k (x1.86)
TOTAL
127.9k
164.54k (x1.29)
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
i7-4790K
Test#1 (Integers)
13.15k
15.8k (x1.2)
Test#2 (FP)
19.7k
14.35k (x0.73)
Test#3 (Generic, ZIP)
5.1k
5.97k (x1.17)
Test#1 (Memory)
9.21k
5.17k (x0.56)
TOTAL
47.16k
41.29k (x0.88)
Multithread
i7-8550U
i7-4790K
Test#1 (Integers)
34.13k
62.79k (x1.84)
Test#2 (FP)
53.79k
66.48k (x1.24)
Test#3 (Generic, ZIP)
13.91k
26.35k (x1.9)
Test#1 (Memory)
4.12k
8.74k (x2.12)
TOTAL
105.95k
164.36k (x1.55)
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
i7-4790K
Test#1 (Integers)
25.37k
26.16k (x1.03)
Test#2 (FP)
22.6k
14.78k (x0.65)
Test#3 (Generic, ZIP)
5.13k
6.01k (x1.17)
Test#1 (Memory)
11.1k
5.52k (x0.5)
TOTAL
64.2k
52.47k (x0.82)
Multithread
i7-8550U
i7-4790K
Test#1 (Integers)
72.82k
107.76k (x1.48)
Test#2 (FP)
71.71k
70.84k (x0.99)
Test#3 (Generic, ZIP)
17.35k
27.99k (x1.61)
Test#1 (Memory)
4.24k
8.87k (x2.09)
TOTAL
166.12k
215.47k (x1.3)
Performance/W
i7-8550U
i7-4790K
Test#1 (Integers)
4855 points/W
1225 points/W
Test#2 (FP)
4781 points/W
805 points/W
Test#3 (Generic, ZIP)
1157 points/W
318 points/W
Test#1 (Memory)
282 points/W
101 points/W
TOTAL
11075 points/W
2448 points/W
Performance/GHz
i7-8550U
i7-4790K
Test#1 (Integers)
6343 points/GHz
5946 points/GHz
Test#2 (FP)
5650 points/GHz
3359 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1366 points/GHz
Test#1 (Memory)
2774 points/GHz
1254 points/GHz
TOTAL
16049 points/GHz
11925 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