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Core i7-7660U vs i5-1335U


Description
The i7-7660U is based on Kaby Lake architecture while the i5-1335U is based on Raptor Lake.

Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the i5-1335U gets 282.2 k points.

Summarizing, the i5-1335U is 2.1 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
b06a3
Core
Kaby Lake-U
Raptor Lake-U
Architecture
Kaby Lake
Base frecuency
2.5 GHz
1.3 GHz
Boost frecuency
4 GHz
4.6 GHz
Socket
BGA 1356
BGA 1744
Cores/Threads
2/4
10/12
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
2x256 kB
2x1280/2x2048 kB
Cache L3
4096 kB
12288 kB
Date
January 2017
January 2023
Mean monothread perf.
57.46k points
92.46k points
Mean multithread perf.
132.81k points
282.25k 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
i5-1335U
Test#1 (Integers)
22.46k
37.94k (x1.69)
Test#2 (FP)
19.29k
26.18k (x1.36)
Test#3 (Generic, ZIP)
4.77k
13.86k (x2.91)
Test#1 (Memory)
10.94k
14.48k (x1.32)
TOTAL
57.46k
92.46k (x1.61)

Multithread

i7-7660U

i5-1335U
Test#1 (Integers)
56.67k
125.7k (x2.22)
Test#2 (FP)
46.95k
93.63k (x1.99)
Test#3 (Generic, ZIP)
12.36k
46.18k (x3.74)
Test#1 (Memory)
16.84k
16.75k (x0.99)
TOTAL
132.81k
282.25k (x2.13)

Performance/W
i7-7660U
i5-1335U
Test#1 (Integers)
3778 points/W
8380 points/W
Test#2 (FP)
3130 points/W
6242 points/W
Test#3 (Generic, ZIP)
824 points/W
3079 points/W
Test#1 (Memory)
1122 points/W
1117 points/W
TOTAL
8854 points/W
18817 points/W

Performance/GHz
i7-7660U
i5-1335U
Test#1 (Integers)
5614 points/GHz
8248 points/GHz
Test#2 (FP)
4823 points/GHz
5692 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
3013 points/GHz
Test#1 (Memory)
2735 points/GHz
3147 points/GHz
TOTAL
14365 points/GHz
20100 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