Core i7-1255U vs i9-7980XE
Description
The i7-1255U is based on Alder Lake architecture while the i9-7980XE is based on Skylake.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the i9-7980XE gets 1223.8 k points.
Summarizing, the i9-7980XE is 4.7 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 i9-7980XE gets 1223.8 k points.
Summarizing, the i9-7980XE is 4.7 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
50654
Core
Alder Lake-U
Skylake-X
Base frecuency
1.7 GHz
2.6 GHz
Boost frecuency
4.7 GHz
4.4 GHz
Socket
BGA 1744
LGA 2066
Cores/Threads
10/12
18/36
TDP
15 W
165 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
18x32+18x32 kB
Cache L2
2x1280+2x2048 kB
18x1024 kB
Cache L3
12288 kB
25344 kB
Date
February 2022
May 2017
Mean monothread perf.
81.73k points
76.43k points
Mean multithread perf.
258.31k points
1223.79k 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
i9-7980XE
Test#1 (Integers)
38.32k
31.16k (x0.81)
Test#2 (FP)
21.35k
28.13k (x1.32)
Test#3 (Generic, ZIP)
11.2k
6.65k (x0.59)
Test#1 (Memory)
10.86k
10.5k (x0.97)
TOTAL
81.73k
76.43k (x0.94)
Multithread
i7-1255U
i9-7980XE
Test#1 (Integers)
105.48k
560.19k (x5.31)
Test#2 (FP)
100.18k
516.97k (x5.16)
Test#3 (Generic, ZIP)
43.39k
123.94k (x2.86)
Test#1 (Memory)
9.26k
22.69k (x2.45)
TOTAL
258.31k
1223.79k (x4.74)
Performance/W
i7-1255U
i9-7980XE
Test#1 (Integers)
7032 points/W
3395 points/W
Test#2 (FP)
6678 points/W
3133 points/W
Test#3 (Generic, ZIP)
2893 points/W
751 points/W
Test#1 (Memory)
617 points/W
137 points/W
TOTAL
17221 points/W
7417 points/W
Performance/GHz
i7-1255U
i9-7980XE
Test#1 (Integers)
8154 points/GHz
7081 points/GHz
Test#2 (FP)
4543 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
1512 points/GHz
Test#1 (Memory)
2311 points/GHz
2386 points/GHz
TOTAL
17390 points/GHz
17371 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