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Core i5-1235U vs i7-12700K


Description
Both models i5-1235U and i7-12700K are based on Alder Lake architecture.

Alder Lake is the 12th generation of Intel Core. It uses the 10nm proccess and was the first to introduce a hybrid architecture with Performance cores and Efficiency cores.

Using the multithread performance as a reference, the i5-1235U gets a score of 297.5 k points while the i7-12700K gets 1034.1 k points.

Summarizing, the i7-12700K is 3.5 times faster than the i5-1235U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
90672
Core
Alder Lake-U
Alder Lake
Architecture
Base frecuency
3.3 GHz
2.7 GHz
Boost frecuency
4.4 GHz
5 GHz
Socket
BGA 1700
LGA 1700
Cores/Threads
10/12
12/20
TDP
15 W
190 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
8x32/4x64+8x48/4x32 kB
Cache L2
1x1280+4x2048 kB
8x1280+4x2048 kB
Cache L3
12288 kB
25600 kB
Date
April 2022
November 2021
Mean monothread perf.
81.64k points
110.2k points
Mean multithread perf.
297.46k points
1034.06k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i5-1235U
i7-12700K
Test#1 (Integers)
7.33k
8.44k (x1.15)
Test#2 (FP)
18.27k
21.1k (x1.15)
Test#3 (Generic, ZIP)
12.8k
14.52k (x1.13)
Test#1 (Memory)
13.2k
12.87k (x0.97)
TOTAL
51.61k
56.92k (x1.1)

Multithread

i5-1235U

i7-12700K
Test#1 (Integers)
29.24k
70.7k (x2.42)
Test#2 (FP)
83.32k
251.29k (x3.02)
Test#3 (Generic, ZIP)
54.53k
159.92k (x2.93)
Test#1 (Memory)
4.99k
32.47k (x6.51)
TOTAL
172.07k
514.38k (x2.99)

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
i5-1235U
i7-12700K
Test#1 (Integers)
36.73k
52.13k (x1.42)
Test#2 (FP)
22.09k
28.97k (x1.31)
Test#3 (Generic, ZIP)
11.24k
15.04k (x1.34)
Test#1 (Memory)
11.58k
14.07k (x1.22)
TOTAL
81.64k
110.2k (x1.35)

Multithread

i5-1235U

i7-12700K
Test#1 (Integers)
130.18k
458.8k (x3.52)
Test#2 (FP)
110.21k
377.45k (x3.42)
Test#3 (Generic, ZIP)
50.76k
171.31k (x3.37)
Test#1 (Memory)
6.31k
26.51k (x4.2)
TOTAL
297.46k
1034.06k (x3.48)

Performance/W
i5-1235U
i7-12700K
Test#1 (Integers)
8679 points/W
2415 points/W
Test#2 (FP)
7348 points/W
1987 points/W
Test#3 (Generic, ZIP)
3384 points/W
902 points/W
Test#1 (Memory)
421 points/W
140 points/W
TOTAL
19831 points/W
5442 points/W

Performance/GHz
i5-1235U
i7-12700K
Test#1 (Integers)
8349 points/GHz
10425 points/GHz
Test#2 (FP)
5020 points/GHz
5794 points/GHz
Test#3 (Generic, ZIP)
2555 points/GHz
3008 points/GHz
Test#1 (Memory)
2631 points/GHz
2813 points/GHz
TOTAL
18555 points/GHz
22040 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