Core i5-8250U vs i7-6820HQ
Description
The i5-8250U is based on Kaby Lake architecture while the i7-6820HQ is based on Skylake.
Using the multithread performance as a reference, the i5-8250U gets a score of 153.5 k points while the i7-6820HQ gets 205.9 k points.
Summarizing, the i7-6820HQ is 1.3 times faster than the i5-8250U. 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 153.5 k points while the i7-6820HQ gets 205.9 k points.
Summarizing, the i7-6820HQ is 1.3 times faster than the i5-8250U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ea
506e3
Core
Kaby Lake-R
Skylake-H
Base frecuency
1.6 GHz
2.7 GHz
Boost frecuency
3.4 GHz
3.6 GHz
Socket
BGA1356
BGA1440
Cores/Threads
4/8
4/8
TDP
15 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
August 2017
October 2015
Mean monothread perf.
53.8k points
50.1k points
Mean multithread perf.
153.5k points
205.89k 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
i5-8250U
i7-6820HQ
Test#1 (Integers)
3.32k
3.18k (x0.96)
Test#2 (FP)
13.5k
13.02k (x0.96)
Test#3 (Generic, ZIP)
4.11k
4.17k (x1.02)
Test#1 (Memory)
7.42k
6.93k (x0.93)
TOTAL
28.34k
27.3k (x0.96)
Multithread
i5-8250U
i7-6820HQ
Test#1 (Integers)
13.97k
13.26k (x0.95)
Test#2 (FP)
50.8k
62.23k (x1.23)
Test#3 (Generic, ZIP)
14.71k
20.34k (x1.38)
Test#1 (Memory)
4.76k
5.46k (x1.15)
TOTAL
84.24k
101.29k (x1.2)
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
i7-6820HQ
Test#1 (Integers)
12.41k
11.54k (x0.93)
Test#2 (FP)
18.11k
16.69k (x0.92)
Test#3 (Generic, ZIP)
4.79k
4.51k (x0.94)
Test#1 (Memory)
8.16k
7.27k (x0.89)
TOTAL
43.46k
40.01k (x0.92)
Multithread
i5-8250U
i7-6820HQ
Test#1 (Integers)
42.48k
48.5k (x1.14)
Test#2 (FP)
60.2k
77.02k (x1.28)
Test#3 (Generic, ZIP)
14.85k
21.3k (x1.43)
Test#1 (Memory)
4.77k
5.24k (x1.1)
TOTAL
122.3k
152.06k (x1.24)
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
i7-6820HQ
Test#1 (Integers)
12.59k
11.78k (x0.94)
Test#2 (FP)
18.89k
18.06k (x0.96)
Test#3 (Generic, ZIP)
4.65k
4.48k (x0.96)
Test#1 (Memory)
8.2k
7.12k (x0.87)
TOTAL
44.32k
41.44k (x0.93)
Multithread
i5-8250U
i7-6820HQ
Test#1 (Integers)
45.91k
49.46k (x1.08)
Test#2 (FP)
69.55k
84.8k (x1.22)
Test#3 (Generic, ZIP)
16.79k
20.7k (x1.23)
Test#1 (Memory)
4.83k
4.77k (x0.99)
TOTAL
137.09k
159.73k (x1.17)
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
i7-6820HQ
Test#1 (Integers)
22k
20.99k (x0.95)
Test#2 (FP)
19.55k
18.63k (x0.95)
Test#3 (Generic, ZIP)
4.41k
4.33k (x0.98)
Test#1 (Memory)
7.83k
6.15k (x0.79)
TOTAL
53.8k
50.1k (x0.93)
Multithread
i5-8250U
i7-6820HQ
Test#1 (Integers)
70.15k
91.8k (x1.31)
Test#2 (FP)
63.27k
87.24k (x1.38)
Test#3 (Generic, ZIP)
15.29k
20.55k (x1.34)
Test#1 (Memory)
4.8k
6.3k (x1.31)
TOTAL
153.5k
205.89k (x1.34)
Performance/W
i5-8250U
i7-6820HQ
Test#1 (Integers)
4676 points/W
2040 points/W
Test#2 (FP)
4218 points/W
1939 points/W
Test#3 (Generic, ZIP)
1019 points/W
457 points/W
Test#1 (Memory)
320 points/W
140 points/W
TOTAL
10233 points/W
4575 points/W
Performance/GHz
i5-8250U
i7-6820HQ
Test#1 (Integers)
6471 points/GHz
5831 points/GHz
Test#2 (FP)
5750 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1298 points/GHz
1204 points/GHz
Test#1 (Memory)
2304 points/GHz
1708 points/GHz
TOTAL
15823 points/GHz
13917 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