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Core i5-9300H vs i7-1255U


Description
The i5-9300H is based on Coffee Lake architecture while the i7-1255U is based on Alder Lake.

Using the multithread performance as a reference, the i5-9300H gets a score of 188 k points while the i7-1255U gets 258.3 k points.

Summarizing, the i7-1255U is 1.4 times faster than the i5-9300H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
906a4
Core
Coffee Lake-H
Alder Lake-U
Architecture
Base frecuency
2.4 GHz
1.7 GHz
Boost frecuency
4.1 GHz
4.7 GHz
Socket
BGA 1440
BGA 1744
Cores/Threads
4/8
10/12
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
4x256 kB
2x1280+2x2048 kB
Cache L3
8192 kB
12288 kB
Date
April 2019
February 2022
Mean monothread perf.
61.06k points
81.73k points
Mean multithread perf.
187.98k 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
i5-9300H
i7-1255U
Test#1 (Integers)
24.7k
38.32k (x1.55)
Test#2 (FP)
21.5k
21.35k (x0.99)
Test#3 (Generic, ZIP)
4.87k
11.2k (x2.3)
Test#1 (Memory)
9.99k
10.86k (x1.09)
TOTAL
61.06k
81.73k (x1.34)

Multithread

i5-9300H

i7-1255U
Test#1 (Integers)
85.56k
105.48k (x1.23)
Test#2 (FP)
76.43k
100.18k (x1.31)
Test#3 (Generic, ZIP)
19.35k
43.39k (x2.24)
Test#1 (Memory)
6.63k
9.26k (x1.4)
TOTAL
187.98k
258.31k (x1.37)

Performance/W
i5-9300H
i7-1255U
Test#1 (Integers)
1901 points/W
7032 points/W
Test#2 (FP)
1698 points/W
6678 points/W
Test#3 (Generic, ZIP)
430 points/W
2893 points/W
Test#1 (Memory)
147 points/W
617 points/W
TOTAL
4177 points/W
17221 points/W

Performance/GHz
i5-9300H
i7-1255U
Test#1 (Integers)
6023 points/GHz
8154 points/GHz
Test#2 (FP)
5245 points/GHz
4543 points/GHz
Test#3 (Generic, ZIP)
1187 points/GHz
2382 points/GHz
Test#1 (Memory)
2437 points/GHz
2311 points/GHz
TOTAL
14893 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