Core i7-4790K vs i7-8665U
Description
The i7-4790K is based on Haswell architecture while the i7-8665U is based on Whiskey Lake.
Using the multithread performance as a reference, the i7-4790K gets a score of 215.5 k points while the i7-8665U gets 109.7 k points.
Summarizing, the i7-4790K is 2 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-4790K gets a score of 215.5 k points while the i7-8665U gets 109.7 k points.
Summarizing, the i7-4790K is 2 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306c3
806ec
Core
Haswell
Whiskey Lake-U
Base frecuency
4 GHz
1.9 GHz
Boost frecuency
4.4 GHz
4.8 GHz
Socket
LGA 1150
BGA 1528
Cores/Threads
4/8
4/8
TDP
88 W
15 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
May 2014
April 2019
Mean monothread perf.
52.47k points
35.19k points
Mean multithread perf.
215.47k points
109.72k 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
i7-4790K
i7-8665U
Test#1 (Integers)
26.16k
14.38k (x0.55)
Test#2 (FP)
14.78k
13.43k (x0.91)
Test#3 (Generic, ZIP)
6.01k
2.87k (x0.48)
Test#1 (Memory)
5.52k
4.49k (x0.81)
TOTAL
52.47k
35.19k (x0.67)
Multithread
i7-4790K
i7-8665U
Test#1 (Integers)
107.76k
47.22k (x0.44)
Test#2 (FP)
70.84k
46.99k (x0.66)
Test#3 (Generic, ZIP)
27.99k
10.08k (x0.36)
Test#1 (Memory)
8.87k
5.42k (x0.61)
TOTAL
215.47k
109.72k (x0.51)
Performance/W
i7-4790K
i7-8665U
Test#1 (Integers)
1225 points/W
3148 points/W
Test#2 (FP)
805 points/W
3133 points/W
Test#3 (Generic, ZIP)
318 points/W
672 points/W
Test#1 (Memory)
101 points/W
361 points/W
TOTAL
2448 points/W
7314 points/W
Performance/GHz
i7-4790K
i7-8665U
Test#1 (Integers)
5946 points/GHz
2996 points/GHz
Test#2 (FP)
3359 points/GHz
2799 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
599 points/GHz
Test#1 (Memory)
1254 points/GHz
936 points/GHz
TOTAL
11925 points/GHz
7330 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