Core i5-8250U vs i7-6600U
Description
The i5-8250U is based on Kaby Lake architecture while the i7-6600U is based on Skylake.
Using the multithread performance as a reference, the i5-8250U gets a score of 161.3 k points while the i7-6600U gets 79.2 k points.
Summarizing, the i5-8250U is 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 i5-8250U gets a score of 161.3 k points while the i7-6600U gets 79.2 k points.
Summarizing, the i5-8250U is 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
806ea
406e3
Core
Kaby Lake-R
Skylake-U
Base frecuency
1.6 GHz
2.6 GHz
Boost frecuency
3.4 GHz
3.4 GHz
Socket
BGA1356
BGA1356
Cores/Threads
4/8
2/4
TDP
15 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
4096 kB
Date
August 2017
September 2015
Mean monothread perf.
54.31k points
39.73k points
Mean multithread perf.
161.26k 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
i5-8250U
i7-6600U
Test#1 (Integers)
3.32k
2.75k (x0.83)
Test#2 (FP)
13.5k
12.23k (x0.91)
Test#3 (Generic, ZIP)
4.11k
3.9k (x0.95)
Test#1 (Memory)
7.42k
5.61k (x0.76)
TOTAL
28.34k
24.48k (x0.86)
Multithread
i5-8250U
i7-6600U
Test#1 (Integers)
13.97k
5.23k (x0.37)
Test#2 (FP)
50.8k
25k (x0.49)
Test#3 (Generic, ZIP)
14.71k
8.98k (x0.61)
Test#1 (Memory)
4.76k
4.73k (x0.99)
TOTAL
84.24k
43.95k (x0.52)
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
i5-8250U
i7-6600U
Test#1 (Integers)
12.41k
6.76k (x0.54)
Test#2 (FP)
18.11k
9.58k (x0.53)
Test#3 (Generic, ZIP)
4.79k
2.46k (x0.51)
Test#1 (Memory)
8.16k
4.18k (x0.51)
TOTAL
43.46k
22.99k (x0.53)
Multithread
i5-8250U
i7-6600U
Test#1 (Integers)
42.48k
14.37k (x0.34)
Test#2 (FP)
60.2k
23.79k (x0.4)
Test#3 (Generic, ZIP)
14.85k
5.71k (x0.38)
Test#1 (Memory)
4.77k
4.29k (x0.9)
TOTAL
122.3k
48.16k (x0.39)
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
i5-8250U
i7-6600U
Test#1 (Integers)
12.59k
8.49k (x0.67)
Test#2 (FP)
18.89k
10.92k (x0.58)
Test#3 (Generic, ZIP)
4.65k
2.76k (x0.59)
Test#1 (Memory)
8.2k
4.93k (x0.6)
TOTAL
44.32k
27.1k (x0.61)
Multithread
i5-8250U
i7-6600U
Test#1 (Integers)
45.91k
14.11k (x0.31)
Test#2 (FP)
69.55k
20.05k (x0.29)
Test#3 (Generic, ZIP)
16.79k
6.17k (x0.37)
Test#1 (Memory)
4.83k
4.73k (x0.98)
TOTAL
137.09k
45.05k (x0.33)
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
i5-8250U
i7-6600U
Test#1 (Integers)
22.11k
16.72k (x0.76)
Test#2 (FP)
19.64k
14.7k (x0.75)
Test#3 (Generic, ZIP)
4.54k
3.4k (x0.75)
Test#1 (Memory)
8.03k
4.9k (x0.61)
TOTAL
54.31k
39.73k (x0.73)
Multithread
i5-8250U
i7-6600U
Test#1 (Integers)
74.19k
33.41k (x0.45)
Test#2 (FP)
66.27k
31.66k (x0.48)
Test#3 (Generic, ZIP)
15.97k
8.18k (x0.51)
Test#1 (Memory)
4.83k
5.97k (x1.24)
TOTAL
161.26k
79.22k (x0.49)
Performance/W
i5-8250U
i7-6600U
Test#1 (Integers)
4946 points/W
2227 points/W
Test#2 (FP)
4418 points/W
2111 points/W
Test#3 (Generic, ZIP)
1065 points/W
546 points/W
Test#1 (Memory)
322 points/W
398 points/W
TOTAL
10751 points/W
5282 points/W
Performance/GHz
i5-8250U
i7-6600U
Test#1 (Integers)
6503 points/GHz
4919 points/GHz
Test#2 (FP)
5777 points/GHz
4325 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
999 points/GHz
Test#1 (Memory)
2361 points/GHz
1441 points/GHz
TOTAL
15975 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