Core i7-1255U vs i7-8086K
Description
The i7-1255U is based on Alder Lake architecture while the i7-8086K is based on Coffee Lake.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the i7-8086K gets 352.4 k points.
Summarizing, the i7-8086K is 1.4 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the i7-8086K gets 352.4 k points.
Summarizing, the i7-8086K is 1.4 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906a4
906ea
Core
Alder Lake-U
Coffee Lake-S
Base frecuency
1.7 GHz
4 GHz
Boost frecuency
4.7 GHz
5 GHz
Socket
BGA 1744
LGA 1151
Cores/Threads
10/12
6/12
TDP
15 W
95 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
6x32+6x32 kB
Cache L2
2x1280+2x2048 kB
6x256 kB
Cache L3
12288 kB
12288 kB
Date
February 2022
June 2018
Mean monothread perf.
81.73k points
72.95k points
Mean multithread perf.
258.31k points
352.4k 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
i7-1255U
i7-8086K
Test#1 (Integers)
38.32k
28.74k (x0.75)
Test#2 (FP)
21.35k
25.31k (x1.19)
Test#3 (Generic, ZIP)
11.2k
5.78k (x0.52)
Test#1 (Memory)
10.86k
13.12k (x1.21)
TOTAL
81.73k
72.95k (x0.89)
Multithread
i7-1255U
i7-8086K
Test#1 (Integers)
105.48k
160.53k (x1.52)
Test#2 (FP)
100.18k
147.29k (x1.47)
Test#3 (Generic, ZIP)
43.39k
35.65k (x0.82)
Test#1 (Memory)
9.26k
8.92k (x0.96)
TOTAL
258.31k
352.4k (x1.36)
Performance/W
i7-1255U
i7-8086K
Test#1 (Integers)
7032 points/W
1690 points/W
Test#2 (FP)
6678 points/W
1550 points/W
Test#3 (Generic, ZIP)
2893 points/W
375 points/W
Test#1 (Memory)
617 points/W
94 points/W
TOTAL
17221 points/W
3709 points/W
Performance/GHz
i7-1255U
i7-8086K
Test#1 (Integers)
8154 points/GHz
5748 points/GHz
Test#2 (FP)
4543 points/GHz
5063 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
1156 points/GHz
Test#1 (Memory)
2311 points/GHz
2624 points/GHz
TOTAL
17390 points/GHz
14590 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