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Core i5-7300U vs i7-6600U


Description
The i5-7300U is based on Kaby Lake architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the i5-7300U gets a score of 109.1 k points while the i7-6600U gets 79.2 k points.

Summarizing, the i5-7300U is 1.4 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
406e3
Core
Kaby Lake-U
Skylake-U
Architecture
Base frecuency
2.6 GHz
2.6 GHz
Boost frecuency
3.5 GHz
3.4 GHz
Socket
BGA1356
BGA1356
Cores/Threads
2/4
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
4096 kB
Date
January 2017
September 2015
Mean monothread perf.
48.25k points
39.73k points
Mean multithread perf.
109.1k 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
i5-7300U
i7-6600U
Test#1 (Integers)
3.11k
2.75k (x0.88)
Test#2 (FP)
12.24k
12.23k (x1)
Test#3 (Generic, ZIP)
4.1k
3.9k (x0.95)
Test#1 (Memory)
4.96k
5.61k (x1.13)
TOTAL
24.41k
24.48k (x1)

Multithread

i5-7300U

i7-6600U
Test#1 (Integers)
6.98k
5.23k (x0.75)
Test#2 (FP)
32.05k
25k (x0.78)
Test#3 (Generic, ZIP)
10.82k
8.98k (x0.83)
Test#1 (Memory)
5.52k
4.73k (x0.86)
TOTAL
55.36k
43.95k (x0.79)

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
i5-7300U
i7-6600U
Test#1 (Integers)
9.96k
6.76k (x0.68)
Test#2 (FP)
15.11k
9.58k (x0.63)
Test#3 (Generic, ZIP)
3.87k
2.46k (x0.64)
Test#1 (Memory)
4.54k
4.18k (x0.92)
TOTAL
33.47k
22.99k (x0.69)

Multithread

i5-7300U

i7-6600U
Test#1 (Integers)
25.26k
14.37k (x0.57)
Test#2 (FP)
40.6k
23.79k (x0.59)
Test#3 (Generic, ZIP)
11.24k
5.71k (x0.51)
Test#1 (Memory)
5.83k
4.29k (x0.74)
TOTAL
82.94k
48.16k (x0.58)

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
i5-7300U
i7-6600U
Test#1 (Integers)
9.85k
8.49k (x0.86)
Test#2 (FP)
17.37k
10.92k (x0.63)
Test#3 (Generic, ZIP)
3.98k
2.76k (x0.69)
Test#1 (Memory)
5.11k
4.93k (x0.96)
TOTAL
36.31k
27.1k (x0.75)

Multithread

i5-7300U

i7-6600U
Test#1 (Integers)
25.37k
14.11k (x0.56)
Test#2 (FP)
43.43k
20.05k (x0.46)
Test#3 (Generic, ZIP)
10.62k
6.17k (x0.58)
Test#1 (Memory)
5.4k
4.73k (x0.88)
TOTAL
84.82k
45.05k (x0.53)

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
i5-7300U
i7-6600U
Test#1 (Integers)
20.18k
16.72k (x0.83)
Test#2 (FP)
18.57k
14.7k (x0.79)
Test#3 (Generic, ZIP)
4.24k
3.4k (x0.8)
Test#1 (Memory)
5.25k
4.9k (x0.93)
TOTAL
48.25k
39.73k (x0.82)

Multithread

i5-7300U

i7-6600U
Test#1 (Integers)
47.75k
33.41k (x0.7)
Test#2 (FP)
44.82k
31.66k (x0.71)
Test#3 (Generic, ZIP)
10.82k
8.18k (x0.76)
Test#1 (Memory)
5.7k
5.97k (x1.05)
TOTAL
109.1k
79.22k (x0.73)

Performance/W
i5-7300U
i7-6600U
Test#1 (Integers)
3184 points/W
2227 points/W
Test#2 (FP)
2988 points/W
2111 points/W
Test#3 (Generic, ZIP)
721 points/W
546 points/W
Test#1 (Memory)
380 points/W
398 points/W
TOTAL
7273 points/W
5282 points/W

Performance/GHz
i5-7300U
i7-6600U
Test#1 (Integers)
5766 points/GHz
4919 points/GHz
Test#2 (FP)
5306 points/GHz
4325 points/GHz
Test#3 (Generic, ZIP)
1213 points/GHz
999 points/GHz
Test#1 (Memory)
1501 points/GHz
1441 points/GHz
TOTAL
13785 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4