Core i7-1255U vs Ryzen 9 7945HX
Description
The i7-1255U is based on Alder Lake architecture while the 7945HX is based on Zen 4.
Using the multithread performance as a reference, the i7-1255U gets a score of 258.3 k points while the 7945HX gets 1313.9 k points.
Summarizing, the 7945HX is 5.1 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 7945HX gets 1313.9 k points.
Summarizing, the 7945HX is 5.1 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
a60f12
Core
Alder Lake-U
Dragon Range
Base frecuency
1.7 GHz
2.5 GHz
Boost frecuency
4.7 GHz
5.4 GHz
Socket
BGA 1744
BGA-FL1
Cores/Threads
10/12
16/32
TDP
15 W
55 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
16x32+16x32 kB
Cache L2
2x1280+2x2048 kB
16x1024 kB
Cache L3
12288 kB
65536 kB
Date
February 2022
January 2023
Mean monothread perf.
81.73k points
113.07k points
Mean multithread perf.
258.31k points
1313.94k 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
7945HX
Test#1 (Integers)
38.32k
37.43k (x0.98)
Test#2 (FP)
21.35k
30.7k (x1.44)
Test#3 (Generic, ZIP)
11.2k
15.16k (x1.35)
Test#1 (Memory)
10.86k
29.78k (x2.74)
TOTAL
81.73k
113.07k (x1.38)
Multithread
i7-1255U
7945HX
Test#1 (Integers)
105.48k
556.68k (x5.28)
Test#2 (FP)
100.18k
482.32k (x4.81)
Test#3 (Generic, ZIP)
43.39k
225.46k (x5.2)
Test#1 (Memory)
9.26k
49.48k (x5.34)
TOTAL
258.31k
1313.94k (x5.09)
Performance/W
i7-1255U
7945HX
Test#1 (Integers)
7032 points/W
10121 points/W
Test#2 (FP)
6678 points/W
8770 points/W
Test#3 (Generic, ZIP)
2893 points/W
4099 points/W
Test#1 (Memory)
617 points/W
900 points/W
TOTAL
17221 points/W
23890 points/W
Performance/GHz
i7-1255U
7945HX
Test#1 (Integers)
8154 points/GHz
6932 points/GHz
Test#2 (FP)
4543 points/GHz
5685 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
2807 points/GHz
Test#1 (Memory)
2311 points/GHz
5515 points/GHz
TOTAL
17390 points/GHz
20939 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