Core i7-7660U vs i5-7300U
Description
Both models i7-7660U and i5-7300U are based on Kaby Lake architecture.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the i5-7300U gets 109.1 k points.
Summarizing, the i7-7660U is 1.2 times faster than the i5-7300U. To get a proper comparison between both models, take a look to the data shown below.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the i5-7300U gets 109.1 k points.
Summarizing, the i7-7660U is 1.2 times faster than the i5-7300U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806e9
806e9
Core
Kaby Lake-U
Kaby Lake-U
Base frecuency
2.5 GHz
2.6 GHz
Boost frecuency
4 GHz
3.5 GHz
Socket
BGA 1356
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
4096 kB
3072 kB
Date
January 2017
January 2017
Mean monothread perf.
57.46k points
48.25k points
Mean multithread perf.
132.81k points
109.1k 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
i7-7660U
i5-7300U
Test#1 (Integers)
22.46k
20.18k (x0.9)
Test#2 (FP)
19.29k
18.57k (x0.96)
Test#3 (Generic, ZIP)
4.77k
4.24k (x0.89)
Test#1 (Memory)
10.94k
5.25k (x0.48)
TOTAL
57.46k
48.25k (x0.84)
Multithread
i7-7660U
i5-7300U
Test#1 (Integers)
56.67k
47.75k (x0.84)
Test#2 (FP)
46.95k
44.82k (x0.95)
Test#3 (Generic, ZIP)
12.36k
10.82k (x0.88)
Test#1 (Memory)
16.84k
5.7k (x0.34)
TOTAL
132.81k
109.1k (x0.82)
Performance/W
i7-7660U
i5-7300U
Test#1 (Integers)
3778 points/W
3184 points/W
Test#2 (FP)
3130 points/W
2988 points/W
Test#3 (Generic, ZIP)
824 points/W
721 points/W
Test#1 (Memory)
1122 points/W
380 points/W
TOTAL
8854 points/W
7273 points/W
Performance/GHz
i7-7660U
i5-7300U
Test#1 (Integers)
5614 points/GHz
5766 points/GHz
Test#2 (FP)
4823 points/GHz
5306 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
1213 points/GHz
Test#1 (Memory)
2735 points/GHz
1501 points/GHz
TOTAL
14365 points/GHz
13785 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