Core i7-6600U vs i7-4790
Description
The i7-6600U is based on Skylake architecture while the i7-4790 is based on Haswell.
Using the multithread performance as a reference, the i7-6600U gets a score of 79.2 k points while the i7-4790 gets 173.9 k points.
Summarizing, the i7-4790 is 2.2 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 i7-6600U gets a score of 79.2 k points while the i7-4790 gets 173.9 k points.
Summarizing, the i7-4790 is 2.2 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
406e3
306c3
Core
Skylake-U
Haswell
Base frecuency
2.6 GHz
3.6 GHz
Boost frecuency
3.4 GHz
4 GHz
Socket
BGA1356
LGA 1150
Cores/Threads
2/4
4/8
TDP
15 W
84 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
September 2015
May 2014
Mean monothread perf.
39.73k points
44.73k points
Mean multithread perf.
79.22k points
173.89k 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
i7-6600U
i7-4790
Test#1 (Integers)
2.75k
4.51k (x1.64)
Test#2 (FP)
12.23k
11.24k (x0.92)
Test#3 (Generic, ZIP)
3.9k
5.03k (x1.29)
Test#1 (Memory)
5.61k
5.02k (x0.9)
TOTAL
24.48k
25.8k (x1.05)
Multithread
i7-6600U
i7-4790
Test#1 (Integers)
5.23k
15.72k (x3.01)
Test#2 (FP)
25k
54.99k (x2.2)
Test#3 (Generic, ZIP)
8.98k
23.87k (x2.66)
Test#1 (Memory)
4.73k
5.48k (x1.16)
TOTAL
43.95k
100.06k (x2.28)
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
i7-6600U
i7-4790
Test#1 (Integers)
6.76k
13.52k (x2)
Test#2 (FP)
9.58k
11.94k (x1.25)
Test#3 (Generic, ZIP)
2.46k
4.96k (x2.01)
Test#1 (Memory)
4.18k
4.84k (x1.16)
TOTAL
22.99k
35.25k (x1.53)
Multithread
i7-6600U
i7-4790
Test#1 (Integers)
14.37k
54.7k (x3.81)
Test#2 (FP)
23.79k
52.41k (x2.2)
Test#3 (Generic, ZIP)
5.71k
24.5k (x4.29)
Test#1 (Memory)
4.29k
6.77k (x1.58)
TOTAL
48.16k
138.37k (x2.87)
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
i7-6600U
i7-4790
Test#1 (Integers)
8.49k
14.07k (x1.66)
Test#2 (FP)
10.92k
12.63k (x1.16)
Test#3 (Generic, ZIP)
2.76k
5.35k (x1.94)
Test#1 (Memory)
4.93k
4.98k (x1.01)
TOTAL
27.1k
37.03k (x1.37)
Multithread
i7-6600U
i7-4790
Test#1 (Integers)
14.11k
57.88k (x4.1)
Test#2 (FP)
20.05k
60.83k (x3.03)
Test#3 (Generic, ZIP)
6.17k
24.4k (x3.96)
Test#1 (Memory)
4.73k
6.95k (x1.47)
TOTAL
45.05k
150.07k (x3.33)
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
i7-6600U
i7-4790
Test#1 (Integers)
16.72k
22.19k (x1.33)
Test#2 (FP)
14.7k
12.45k (x0.85)
Test#3 (Generic, ZIP)
3.4k
5.11k (x1.51)
Test#1 (Memory)
4.9k
4.98k (x1.02)
TOTAL
39.73k
44.73k (x1.13)
Multithread
i7-6600U
i7-4790
Test#1 (Integers)
33.41k
87.14k (x2.61)
Test#2 (FP)
31.66k
58k (x1.83)
Test#3 (Generic, ZIP)
8.18k
22.75k (x2.78)
Test#1 (Memory)
5.97k
6k (x1)
TOTAL
79.22k
173.89k (x2.19)
Performance/W
i7-6600U
i7-4790
Test#1 (Integers)
2227 points/W
1037 points/W
Test#2 (FP)
2111 points/W
691 points/W
Test#3 (Generic, ZIP)
546 points/W
271 points/W
Test#1 (Memory)
398 points/W
71 points/W
TOTAL
5282 points/W
2070 points/W
Performance/GHz
i7-6600U
i7-4790
Test#1 (Integers)
4919 points/GHz
5547 points/GHz
Test#2 (FP)
4325 points/GHz
3113 points/GHz
Test#3 (Generic, ZIP)
999 points/GHz
1279 points/GHz
Test#1 (Memory)
1441 points/GHz
1244 points/GHz
TOTAL
11684 points/GHz
11183 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