Core i7-1255U vs Ryzen 7 5800U
Description
The i7-1255U is based on Alder Lake architecture while the 5800U is based on Zen 3.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the 5800U gets 314.5 k points.
Summarizing, the 5800U is 1.2 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 5800U gets 314.5 k points.
Summarizing, the 5800U is 1.2 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
a50f00
Core
Alder Lake-U
Cezanne
Base frecuency
1.7 GHz
1.9 GHz
Boost frecuency
4.7 GHz
4.4 GHz
Socket
BGA 1744
BGA-FP6
Cores/Threads
10/12
8/16
TDP
15 W
15 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
8x32+8x32 kB
Cache L2
2x1280+2x2048 kB
8x512 kB
Cache L3
12288 kB
16384 kB
Date
February 2022
January 2021
Mean monothread perf.
81.73k points
71.16k points
Mean multithread perf.
258.31k points
314.55k 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
5800U
Test#1 (Integers)
38.32k
18.34k (x0.48)
Test#2 (FP)
21.35k
22.78k (x1.07)
Test#3 (Generic, ZIP)
11.2k
9.45k (x0.84)
Test#1 (Memory)
10.86k
20.59k (x1.9)
TOTAL
81.73k
71.16k (x0.87)
Multithread
i7-1255U
5800U
Test#1 (Integers)
105.48k
102.74k (x0.97)
Test#2 (FP)
100.18k
143.27k (x1.43)
Test#3 (Generic, ZIP)
43.39k
58.13k (x1.34)
Test#1 (Memory)
9.26k
10.41k (x1.12)
TOTAL
258.31k
314.55k (x1.22)
Performance/W
i7-1255U
5800U
Test#1 (Integers)
7032 points/W
6849 points/W
Test#2 (FP)
6678 points/W
9551 points/W
Test#3 (Generic, ZIP)
2893 points/W
3875 points/W
Test#1 (Memory)
617 points/W
694 points/W
TOTAL
17221 points/W
20970 points/W
Performance/GHz
i7-1255U
5800U
Test#1 (Integers)
8154 points/GHz
4168 points/GHz
Test#2 (FP)
4543 points/GHz
5178 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
2147 points/GHz
Test#1 (Memory)
2311 points/GHz
4679 points/GHz
TOTAL
17390 points/GHz
16172 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