Core i5-8265U vs i7-5820K
Description
The i5-8265U is based on Whiskey Lake architecture while the i7-5820K is based on Haswell.
Using the multithread performance as a reference, the i5-8265U gets a score of 151.4 k points while the i7-5820K gets 129.1 k points.
Summarizing, the i5-8265U is 1.2 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-8265U gets a score of 151.4 k points while the i7-5820K gets 129.1 k points.
Summarizing, the i5-8265U is 1.2 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ec
306f2
Core
Whiskey Lake-U
Haswell-E
Base frecuency
1.6 GHz
3.3 GHz
Boost frecuency
3.9 GHz
3.6 GHz
Socket
BGA1528
LGA 1150
Cores/Threads
4/8
6/12
TDP
15 W
140 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
15360 kB
Date
August 2018
September 2014
Mean monothread perf.
46.67k points
31.53k points
Mean multithread perf.
143.23k points
129.06k 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
i5-8265U
i7-5820K
Test#1 (Integers)
3.68k
3.82k (x1.04)
Test#2 (FP)
16.08k
9.64k (x0.6)
Test#3 (Generic, ZIP)
4.99k
4.29k (x0.86)
Test#1 (Memory)
7.95k
3.78k (x0.48)
TOTAL
32.69k
21.53k (x0.66)
Multithread
i5-8265U
i7-5820K
Test#1 (Integers)
14.29k
18.07k (x1.26)
Test#2 (FP)
61.15k
64.25k (x1.05)
Test#3 (Generic, ZIP)
16.53k
27.03k (x1.64)
Test#1 (Memory)
3.72k
8.03k (x2.16)
TOTAL
95.69k
117.38k (x1.23)
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
i5-8265U
i7-5820K
Test#1 (Integers)
13.66k
12.03k (x0.88)
Test#2 (FP)
21.17k
11.23k (x0.53)
Test#3 (Generic, ZIP)
5k
4.55k (x0.91)
Test#1 (Memory)
8.11k
3.72k (x0.46)
TOTAL
47.94k
31.53k (x0.66)
Multithread
i5-8265U
i7-5820K
Test#1 (Integers)
51.36k
49.48k (x0.96)
Test#2 (FP)
79.72k
52.21k (x0.65)
Test#3 (Generic, ZIP)
16.61k
19.7k (x1.19)
Test#1 (Memory)
3.75k
7.67k (x2.05)
TOTAL
151.44k
129.06k (x0.85)
Performance/W
i5-8265U
i7-5820K
Test#1 (Integers)
3424 points/W
353 points/W
Test#2 (FP)
5314 points/W
373 points/W
Test#3 (Generic, ZIP)
1108 points/W
141 points/W
Test#1 (Memory)
250 points/W
55 points/W
TOTAL
10096 points/W
922 points/W
Performance/GHz
i5-8265U
i7-5820K
Test#1 (Integers)
3502 points/GHz
3343 points/GHz
Test#2 (FP)
5429 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1264 points/GHz
Test#1 (Memory)
2081 points/GHz
1033 points/GHz
TOTAL
12293 points/GHz
8759 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