Core i7-4790K vs i7-6600U
Description
The i7-4790K is based on Haswell architecture while the i7-6600U is based on Skylake.
Using the multithread performance as a reference, the i7-4790K gets a score of 215.5 k points while the i7-6600U gets 79.2 k points.
Summarizing, the i7-4790K is 2.7 times faster than the i7-6600U. 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 i7-6600U gets 79.2 k points.
Summarizing, the i7-4790K is 2.7 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306c3
406e3
Core
Haswell
Skylake-U
Base frecuency
4 GHz
2.6 GHz
Boost frecuency
4.4 GHz
3.4 GHz
Socket
LGA 1150
BGA1356
Cores/Threads
4/8
2/4
TDP
88 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
May 2014
September 2015
Mean monothread perf.
52.47k points
39.73k points
Mean multithread perf.
215.47k points
79.22k 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
i7-4790K
i7-6600U
Test#1 (Integers)
5.06k
2.75k (x0.54)
Test#2 (FP)
12.63k
12.23k (x0.97)
Test#3 (Generic, ZIP)
5.81k
3.9k (x0.67)
Test#1 (Memory)
4.96k
5.61k (x1.13)
TOTAL
28.47k
24.48k (x0.86)
Multithread
i7-4790K
i7-6600U
Test#1 (Integers)
18.28k
5.23k (x0.29)
Test#2 (FP)
64.07k
25k (x0.39)
Test#3 (Generic, ZIP)
27.52k
8.98k (x0.33)
Test#1 (Memory)
7.97k
4.73k (x0.59)
TOTAL
117.84k
43.95k (x0.37)
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
i7-4790K
i7-6600U
Test#1 (Integers)
15.6k
6.76k (x0.43)
Test#2 (FP)
13.92k
9.58k (x0.69)
Test#3 (Generic, ZIP)
6.12k
2.46k (x0.4)
Test#1 (Memory)
5k
4.18k (x0.84)
TOTAL
40.65k
22.99k (x0.57)
Multithread
i7-4790K
i7-6600U
Test#1 (Integers)
65.48k
14.37k (x0.22)
Test#2 (FP)
63.29k
23.79k (x0.38)
Test#3 (Generic, ZIP)
27.93k
5.71k (x0.2)
Test#1 (Memory)
7.84k
4.29k (x0.55)
TOTAL
164.54k
48.16k (x0.29)
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
i7-4790K
i7-6600U
Test#1 (Integers)
15.8k
8.49k (x0.54)
Test#2 (FP)
14.35k
10.92k (x0.76)
Test#3 (Generic, ZIP)
5.97k
2.76k (x0.46)
Test#1 (Memory)
5.17k
4.93k (x0.95)
TOTAL
41.29k
27.1k (x0.66)
Multithread
i7-4790K
i7-6600U
Test#1 (Integers)
62.79k
14.11k (x0.22)
Test#2 (FP)
66.48k
20.05k (x0.3)
Test#3 (Generic, ZIP)
26.35k
6.17k (x0.23)
Test#1 (Memory)
8.74k
4.73k (x0.54)
TOTAL
164.36k
45.05k (x0.27)
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
i7-6600U
Test#1 (Integers)
26.16k
16.72k (x0.64)
Test#2 (FP)
14.78k
14.7k (x1)
Test#3 (Generic, ZIP)
6.01k
3.4k (x0.57)
Test#1 (Memory)
5.52k
4.9k (x0.89)
TOTAL
52.47k
39.73k (x0.76)
Multithread
i7-4790K
i7-6600U
Test#1 (Integers)
107.76k
33.41k (x0.31)
Test#2 (FP)
70.84k
31.66k (x0.45)
Test#3 (Generic, ZIP)
27.99k
8.18k (x0.29)
Test#1 (Memory)
8.87k
5.97k (x0.67)
TOTAL
215.47k
79.22k (x0.37)
Performance/W
i7-4790K
i7-6600U
Test#1 (Integers)
1225 points/W
2227 points/W
Test#2 (FP)
805 points/W
2111 points/W
Test#3 (Generic, ZIP)
318 points/W
546 points/W
Test#1 (Memory)
101 points/W
398 points/W
TOTAL
2448 points/W
5282 points/W
Performance/GHz
i7-4790K
i7-6600U
Test#1 (Integers)
5946 points/GHz
4919 points/GHz
Test#2 (FP)
3359 points/GHz
4325 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
999 points/GHz
Test#1 (Memory)
1254 points/GHz
1441 points/GHz
TOTAL
11925 points/GHz
11684 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