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Core i7-1255U vs Ryzen 7 5800X3D


Description
The i7-1255U is based on Alder Lake architecture while the 5800X3D 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 5800X3D gets 631.1 k points.

Summarizing, the 5800X3D is 2.4 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
a20f12
Core
Alder Lake-U
Vermeer
Architecture
Base frecuency
1.7 GHz
3.4 GHz
Boost frecuency
4.7 GHz
4.5 GHz
Socket
BGA 1744
AM4
Cores/Threads
10/12
8/16
TDP
15 W
105 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
8x32+8x32 kB
Cache L2
2x1280+2x2048 kB
8x512 kB
Cache L3
12288 kB
98304 kB
Date
February 2022
April 2022
Mean monothread perf.
81.73k points
83.1k points
Mean multithread perf.
258.31k points
631.14k 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
5800X3D
Test#1 (Integers)
38.32k
22.59k (x0.59)
Test#2 (FP)
21.35k
24.32k (x1.14)
Test#3 (Generic, ZIP)
11.2k
11.32k (x1.01)
Test#1 (Memory)
10.86k
24.86k (x2.29)
TOTAL
81.73k
83.1k (x1.02)

Multithread

i7-1255U

5800X3D
Test#1 (Integers)
105.48k
181.41k (x1.72)
Test#2 (FP)
100.18k
236.12k (x2.36)
Test#3 (Generic, ZIP)
43.39k
105.13k (x2.42)
Test#1 (Memory)
9.26k
108.48k (x11.72)
TOTAL
258.31k
631.14k (x2.44)

Performance/W
i7-1255U
5800X3D
Test#1 (Integers)
7032 points/W
1728 points/W
Test#2 (FP)
6678 points/W
2249 points/W
Test#3 (Generic, ZIP)
2893 points/W
1001 points/W
Test#1 (Memory)
617 points/W
1033 points/W
TOTAL
17221 points/W
6011 points/W

Performance/GHz
i7-1255U
5800X3D
Test#1 (Integers)
8154 points/GHz
5020 points/GHz
Test#2 (FP)
4543 points/GHz
5405 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
2517 points/GHz
Test#1 (Memory)
2311 points/GHz
5525 points/GHz
TOTAL
17390 points/GHz
18467 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4