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Ryzen 9 5900X vs Core i7-1255U


Description
The 5900X is based on Zen 3 architecture while the i7-1255U is based on Alder Lake.

Using the multithread performance as a reference, the 5900X gets a score of 816 k points while the i7-1255U gets 258.3 k points.

Summarizing, the 5900X is 3.2 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a20f12
906a4
Core
Vermeer
Alder Lake-U
Architecture
Base frecuency
3.7 GHz
1.7 GHz
Boost frecuency
4.8 GHz
4.7 GHz
Socket
AM4
BGA 1744
Cores/Threads
12/24
10/12
TDP
105 W
15 W
Cache L1 (d+i)
12x32+12x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
12x512 kB
2x1280+2x2048 kB
Cache L3
2x32768 kB
12288 kB
Date
November 2020
February 2022
Mean monothread perf.
83.42k points
81.73k points
Mean multithread perf.
816.01k points
258.31k 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
5900X
i7-1255U
Test#1 (Integers)
22.58k
38.32k (x1.7)
Test#2 (FP)
24.83k
21.35k (x0.86)
Test#3 (Generic, ZIP)
11.23k
11.2k (x1)
Test#1 (Memory)
24.78k
10.86k (x0.44)
TOTAL
83.42k
81.73k (x0.98)

Multithread

5900X

i7-1255U
Test#1 (Integers)
259.31k
105.48k (x0.41)
Test#2 (FP)
343.12k
100.18k (x0.29)
Test#3 (Generic, ZIP)
155.92k
43.39k (x0.28)
Test#1 (Memory)
57.66k
9.26k (x0.16)
TOTAL
816.01k
258.31k (x0.32)

Performance/W
5900X
i7-1255U
Test#1 (Integers)
2470 points/W
7032 points/W
Test#2 (FP)
3268 points/W
6678 points/W
Test#3 (Generic, ZIP)
1485 points/W
2893 points/W
Test#1 (Memory)
549 points/W
617 points/W
TOTAL
7772 points/W
17221 points/W

Performance/GHz
5900X
i7-1255U
Test#1 (Integers)
4704 points/GHz
8154 points/GHz
Test#2 (FP)
5172 points/GHz
4543 points/GHz
Test#3 (Generic, ZIP)
2340 points/GHz
2382 points/GHz
Test#1 (Memory)
5163 points/GHz
2311 points/GHz
TOTAL
17379 points/GHz
17390 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