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Core i7-10870H vs i5-1235U


Description
The i7-10870H is based on Comet Lake architecture while the i5-1235U is based on Alder Lake.

Using the multithread performance as a reference, the i7-10870H gets a score of 487 k points while the i5-1235U gets 297.5 k points.

Summarizing, the i7-10870H is 1.6 times faster than the i5-1235U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0652
906a4
Core
Comet Lake-H
Alder Lake-U
Architecture
Base frecuency
2.2 GHz
3.3 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
FC-BGA 1440
BGA 1700
Cores/Threads
8/16
10/12
TDP
45 W
15 W
Cache L1 (d+i)
8x32+8x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
8x256 kB
1x1280+4x2048 kB
Cache L3
16384 kB
12288 kB
Date
September 2020
April 2022
Mean monothread perf.
79.2k points
81.64k points
Mean multithread perf.
487.05k points
297.46k 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
i7-10870H
i5-1235U
Test#1 (Integers)
4.77k
7.33k (x1.54)
Test#2 (FP)
19.81k
18.27k (x0.92)
Test#3 (Generic, ZIP)
6.29k
12.8k (x2.03)
Test#1 (Memory)
14.03k
13.2k (x0.94)
TOTAL
44.9k
51.61k (x1.15)

Multithread

i7-10870H

i5-1235U
Test#1 (Integers)
31.21k
29.24k (x0.94)
Test#2 (FP)
151.01k
83.32k (x0.55)
Test#3 (Generic, ZIP)
50.13k
54.53k (x1.09)
Test#1 (Memory)
8.37k
4.99k (x0.6)
TOTAL
240.71k
172.07k (x0.71)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-10870H
i5-1235U
Test#1 (Integers)
17.17k
23.53k (x1.37)
Test#2 (FP)
25.26k
23.51k (x0.93)
Test#3 (Generic, ZIP)
6.7k
14.71k (x2.19)
Test#1 (Memory)
13.81k
13.24k (x0.96)
TOTAL
62.95k
74.99k (x1.19)

Multithread

i7-10870H

i5-1235U
Test#1 (Integers)
116.68k
106.07k (x0.91)
Test#2 (FP)
187.28k
115.88k (x0.62)
Test#3 (Generic, ZIP)
51.52k
60.53k (x1.17)
Test#1 (Memory)
8.39k
5.88k (x0.7)
TOTAL
363.87k
288.36k (x0.79)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-10870H
i5-1235U
Test#1 (Integers)
16.14k
23.03k (x1.43)
Test#2 (FP)
24.74k
24.11k (x0.97)
Test#3 (Generic, ZIP)
5.98k
13.9k (x2.32)
Test#1 (Memory)
12.7k
12.11k (x0.95)
TOTAL
59.55k
73.15k (x1.23)

Multithread

i7-10870H

i5-1235U
Test#1 (Integers)
117.03k
111.78k (x0.96)
Test#2 (FP)
199.88k
124.18k (x0.62)
Test#3 (Generic, ZIP)
50.64k
59.87k (x1.18)
Test#1 (Memory)
8.23k
5.76k (x0.7)
TOTAL
375.77k
301.58k (x0.8)

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
i7-10870H
i5-1235U
Test#1 (Integers)
30.38k
36.73k (x1.21)
Test#2 (FP)
27.95k
22.09k (x0.79)
Test#3 (Generic, ZIP)
6.51k
11.24k (x1.73)
Test#1 (Memory)
14.37k
11.58k (x0.81)
TOTAL
79.2k
81.64k (x1.03)

Multithread

i7-10870H

i5-1235U
Test#1 (Integers)
216.18k
130.18k (x0.6)
Test#2 (FP)
210.82k
110.21k (x0.52)
Test#3 (Generic, ZIP)
51.57k
50.76k (x0.98)
Test#1 (Memory)
8.47k
6.31k (x0.75)
TOTAL
487.05k
297.46k (x0.61)

Performance/W
i7-10870H
i5-1235U
Test#1 (Integers)
4804 points/W
8679 points/W
Test#2 (FP)
4685 points/W
7348 points/W
Test#3 (Generic, ZIP)
1146 points/W
3384 points/W
Test#1 (Memory)
188 points/W
421 points/W
TOTAL
10823 points/W
19831 points/W

Performance/GHz
i7-10870H
i5-1235U
Test#1 (Integers)
6075 points/GHz
8349 points/GHz
Test#2 (FP)
5589 points/GHz
5020 points/GHz
Test#3 (Generic, ZIP)
1302 points/GHz
2555 points/GHz
Test#1 (Memory)
2873 points/GHz
2631 points/GHz
TOTAL
15840 points/GHz
18555 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